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Zantac (Ranitidine)
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Zantac

Generic Zantac is a high-quality medication which is taken in treatment of intestines, ulcers in the stomach, Zollinger-Ellison syndrome, gastroesophageal reflux disease (GERD) and other conditions of heartburn. Generic Zantac acts by decreasing the amount of acid produced in the stomach. It is a heartburn medicine.

Other names for this medication:

Similar Products:
Axid, Pepcid, Tagamet , Pepcid, Fluxid, Pepcid AC

 

Also known as:  Ranitidine.

Description

Generic Zantac is a perfect remedy in struggle against intestines, ulcers in the stomach, Zollinger-Ellison syndrome, gastroesophageal reflux disease (GERD) and other conditions of heartburn.

Generic Zantac acts by decreasing the amount of acid produced in the stomach. It is a heartburn medicine.

Zantac is also known as Ranitidine, Monorin, Histac, Ranitil.

Generic name of Generic Zantac is Ranitidine.

Brand names of Generic Zantac are Zantac, Zantac 150, Zantac 300, Zantac 300 GELdose, Zantac 75, Zantac EFFERdose, and Zantac GELdose.

Dosage

Generic Zantac is available in tablets (150 mg, 300 mg), capsules, syrup.

Before swallowing, fizzy tablets of 25 ml should be dissolved in 1 teaspoon of water.

Before drinking Generic Zantac granules should be mixed with 6 to 8 ounces of water.

The treatment can take more than 8 weeks.

Keep Generic Zantac away from children and do not share it with other people.

Take Generic Zantac tablets orally with water.

Do not crush or chew it.

If you want to achieve most effective results do not stop taking Generic Zantac suddenly.

Overdose

If you overdose Generic Zantac and you don't feel good you should visit your doctor or health care provider immediately. Symptoms of Generic Zantac overdosage: coordination, feeling light-headed, fainting.

Storage

Store at room temperature between 2 and 30 degrees C (36 and 86 degrees F) away from moisture, light and heat. Keep container tightly closed. Throw away any unused medicine after the expiration date. Keep out of the reach of children.

Side effects

The most common side effects associated with Zantac are:

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Side effect occurrence does not only depend on medication you are taking, but also on your overall health and other factors.

Contraindications

Do not take Generic Zantac if you are allergic to Generic Zantac components.

Be careful with Generic Zantac if you're pregnant or you plan to have a baby, or you are a nursing mother.

Generic Zantac can increase a risk of developing pneumonia.

Be careful using Generic Zantac if you are taking triazolam (Halcion).

It can be dangerous to use Generic Zantac if you suffer from or have a history of kidney disease, liver disease, phenylketonuria (PKU), porphyria.

Avoid alcohol.

Do not stop taking Generic Zantac suddenly.

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Omeprazole, 20 mg, is the most effective initial therapy for relief of GORD symptoms.

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The clinical value of ranitidine, 75 b. d. versus 175 mg b. d. in 48 patients with endoscopically proven duodenal ulcer was evaluated in a randomised double-blind study. In the two groups of patients there was no significant difference of ulcer healing. After 4 weeks of treatment in each group healing of 79% and after 6 weeks of 92% of the ulcers was observed. After 8 weeks the healing rate was 96% in patients who received 75 mg b. d. and 100% in those receiving 150 mg of ranitidine b. d. Smoking prolonged ulcer healing in both groups. Upon ulcer healing in 34 patients a ranitidine dosis of 75 mg nocte for prophylaxis of ulcer recurrence was compared with a 150 mg dosis nocte. Within 12 months in the two groups recurrence of duodenal ulcer was found by endoscopy in 21% and 20% of the patients. 7 out of 8 patients with ulcer recurrence were smokers. According to the results of these studies it appears that the recommended standard dosis of ranitidine for treatment of duodenal ulcer could be reduced by one half. To confirm our conclusions, further studies with a greater number of duodenal ulcer cases are necessary.

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Nonrandomized controlled study.

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Factors precipitating persistence of gastrocutaneous fistulas (GCFs) are not clearly understood. The role of proton pump inhibitors (PPIs) or histamine receptor antagonists in GCF closure is not yet studied. We aimed to identify whether these medications influence spontaneous GCF closure.

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A total of 15,495 patients registered with eight general practitioners in seven general practices in Dundee, UK.

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In the prevention of stress acute gastric lesions Sucralfate might be indicated as a partial cytoprotector and Omeprazole or Lanzoprazole as antisecretant and lesion preventive drugs.

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Meta-analysis combining the odds ratios (OR) of the individual studies in a global OR (Peto method). OUTCOMES EVALUATED: Persistent or recurrent bleeding, need for surgery, or mortality.

zantac dosage infant

Inflammation of the liver may be caused by a variety of factors that include infectious agents and toxins. Reactive oxygen species (ROS) generated by the NADPH oxidase in Kupffer cells and infiltrating leukocytes play an important role in the pathogenesis of early alcohol-induced hepatitis. Histamine dihydrochloride (histamine) suppresses the generation of ROS through the histamine type-2 receptor (H2 receptor). Histamine was studied as a potential protective treatment against early alcohol-induced liver injury in an experimental hepatitis model. Female Wistar rats were given ethanol (5 g/kg) intragastrically by gavage once daily for 4 weeks, while a control group not receiving ethanol was fed an isocaloric high-fat diet. Animals receiving ethanol had elevated serum levels of alanine and aspartate transaminase (ALT/AST) and developed steatosis, inflammation, and necrosis of the liver. Histamine treatment (0.5 or 5.0 mg/kg, twice daily) protected against this liver injury as evident by normal serum transaminase levels and significantly reduced liver pathology scores. Ranitidine (10 mg/kg), an H2 receptor antagonist, blocked the protective effect of histamine, indicating that the histamine effect is predominantly mediated through the H2 receptor. In conclusion, these results suggest that histamine protects against early alcohol-induced liver injury in rats.

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We observed that patients in group 1 had a higher incidence of overt upper GI haemorrhage, which was statistically significant (P <0.014) compared to patients in group 2.

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Triple therapy with ranitidine, clarithromycin, and metronidazole provides a safe and effective treatment of H. pylori infection, resulting in a high eradication rate, and in significant decrease in semiquantitative histology scores. Further prospective studies are warranted.

zantac dosing directions

Convulsive potency was evaluated to investigate the mechanism of neurotoxic convulsion induced by histamine H2 receptor antagonists (H2 blockers). Four H2 blockers, cimetidine (721-1236 nmol), ranitidine (477-954 nmol), famotidine (7.4-44 nmol), and nizatidine (226-603 nmol) were administered intracerebrally (i.c.) to mice. Dose dependency of clonic and/or tonic convulsion was observed, and the ED50 values of convulsive occurrence for cimetidine, ranitidine, famotidine, and nizatidine were 997, 662, 23.4, and 404 nmol, respectively. Intraperitoneal pretreatment of muscimol, aminooxy acetic acid, diazepam, (+/-)2-amino-7-phosphonoheptanoic acid (APH), or (+)MK801 suppressed the tonic convulsion after i.c. administration of ranitidine, but had no effect on clonic convulsion. Furthermore, the convulsive threshold concentration in the brain determined by constant rate infusion of ranitidine was not affected by the pretreatment of muscimol, diazepam, APH, and MK801. Ed50 values for convulsive occurrence after i.c. administration of four H2 blockers correlated well with the EC50 values for gastric acid secretion inhibition. The convulsive threshold concentrations of cimetidine and ranitidine in the brain were 11 and 2.5 microM, respectively, which were similar to the dissociation constants determined from the inhibition of gastric acid output in mice. From these results, tonic convulsion induced by H2 blockers can be suppressed by GABAergic or glutamatergic anticonvulsants, while clonic convulsion induced by H2 blockers may be associated with the blockade of H2 receptor in the brain and not be directly associated with the GABA and glutamate-mediated neurotransmission.

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Even with the current most effective treatment regimens, about 10% to 20% of patients will fail to eradicate Helicobacter pylori infection. Therefore, in designing a treatment strategy, we should not focus on the results of primary therapy alone but also on the final (overall) eradication rate. The choice of a second-line treatment depends on which treatment was used initially, because retreatment with the same regimen is not recommended. Therefore, it seems that performing culture after a first eradication failure is not necessary and assessing H. pylori sensitivity to antibiotics only after failure of the second treatment is suggested in clinical practice. Different possibilities of empirical treatment are suggested. After failure of proton pump inhibitor (PPI)-amoxicillin-clarithromycin, quadruple therapy has been generally used. More recently, replacing the PPI and the bismuth compound by ranitidine bismuth citrate has also achieved good results. After PPI-amoxicillin-nitroimidazole failure, retreatment with PPI-amoxicillin-clarithromycin has proved to be effective. Finally, the first therapy should not combine clarithromycin and metronidazole in the same regimen because of the problem of resistance against both antibiotics. Recently, rifabutin-based rescue therapies have been shown to constitute an encouraging strategy for eradication failures because they are effective for H. pylori strains resistant to antibiotics.

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We present a survey on the incidence, demography and natural history (re-dilatation rates) of patients with oesophageal acid-peptic stricture seen between 1977 and 1995.

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In vitro studies and animal experiments as well as clinical observations in humans concerning cardiovascular effects of H2-receptor antagonists have been published shortly after the development. Thus, clinical studies were performed to investigate these effects. The following review summarizes the results from in vitro studies up to the clinical investigations performed.

zantac 2 mg

The pharmacology, pharmacokinetics, clinical efficacy, contraindications and precautions, adverse effects, dosage, and cost of misoprostol are reviewed. Misoprostol is a synthetic analogue of natural prostaglandin E1. It produces a dose-related inhibition of gastric acid and pepsin secretion and enhances mucosal resistance to injury. Misoprostol is extensively absorbed from the stomach and undergoes rapid de-esterification to its biologically active metabolite, misoprostol acid. The average absorption after an oral dose is 88%; peak plasma concentrations of misoprostol acid are achieved in less than 30 minutes. Clinical trials have demonstrated ulcer healing rates of approximately 60-80% in patients with duodenal ulcers who received misoprostol 800 micrograms daily for four weeks. Misoprostol was generally no more efficacious than conventional therapy with the H2-receptor antagonists cimetidine and ranitidine. The healing rate observed for gastric ulcers was less than that observed for duodenal ulcers. In trials involving healthy volunteers and patients with arthritis receiving aspirin, naproxen, tolmetin, ibuprofen, or piroxicam, misoprostol was consistently superior to placebo, cimetidine, and sucralfate in the prevention of nonsteroidal anti-inflammatory drug (NSAID)-induced gastropathy. The majority of these studies have been of short duration; however, long-term studies (up to three months) have corroborated superiority over placebo. Misoprostol is an abortifacient and is contraindicated in pregnant women and women of childbearing potential not using effective contraception. The most common adverse effect of misoprostol therapy is diarrhea, which is often mild and self-limiting and can be minimized by administration of misoprostol after meals and at bedtime. The cost (based on retail price) of four weeks of therapy with misoprostol is comparable to that of other antiulcer agents. Misoprostol has been shown to be an effective agent for the prevention of NSAID-induced gastric ulcers. However, there is no evidence that it offers any clinical advantage over H2-receptor antagonists for the treatment of gastric or duodenal ulcer disease.

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To compare the rates of clinically significant gastrointestinal bleeding and the number of blood units and endoscopies required for gastrointestinal hemorrhage between patients receiving or not receiving stress-ulcer prophylaxis.

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Sequential therapy was associated with a higher eradication rate of H. pylori compared with both 7-day triple regimen and 10-day triple regimen.

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Inhibitors of angiotensin converting enzyme (ACE) are suspected of inducing angioedemas in up to 0.2% of all patients. These angioedemas are mainly localized in the upper airways and therefore can cause severe airway obstruction and even death due to suffocation. We report the case of a 64-year-old man, who underwent emergency tracheotomy because of severe angioedema of the larynx, which was refractory to pharmacological treatment. We conclude that patients with ACE inhibitor-induced angioedemas should be observed by monitoring in an intensive care unit to ensure the possibility of early intubation, because conventional antiallergic-antiedematous therapy by histamine-receptor antagonists and corticosteroids is an insufficient, unreliable form of therapy in severe cases. Especially otolaryngologists should know about this uncommon potentially life-threatening side-effect of ACE inhibitors.

medication zantac

We conducted a masked trial comparing metoclopramide, 0.2 mg/kg/dose q 6 hours, and ranitidine, 2 mg/kg/dose q 8 hours, with saline placebo. Each infant served as his own control. Preterm infants having >3 bradycardia episodes per 2 days were eligible if the clinician intended to begin anti-reflux medications for bradycardia attributed to GER.

zantac dosing

The use and adverse effects of non-steroidal anti-inflammatory drugs (NSAIDs) in outpatients with rheumatic diseases has not yet been studied enough. The aim of this study was to evaluate the data about the efficacy and safety of NSAIDs obtained from the questionnaires submitted to the outpatients receiving these drugs.

zantac drug class

We have investigated the possibility of measuring acid secretion from human gastric mucosa in vitro as a potential pharmacological preparation. We used open-ended 10 microns-tip, lix-based glass microelectrodes to measure the pH of the mucus layer of gastric biopsies superfused with a HEPES buffered solution in an organ bath. With no drugs added the pH of the mucus layer of biopsies from the body of the stomach stayed constant but the pH of antral biopsies fell slightly by a median of 0.12 pH units over 80 min (P < 0.05). Stimulation of the biopsies with 1-100 microM histamine produced a dose-dependent decrease in pH which was significantly greater in biopsies from the gastric body than from the antrum. 500 pM pentagastrin produced a median fall in pH of 1.20 (P < 0.01) which was prevented by the prior addition of 100 microM omeprazole or 10 microM ranitidine. Omeprazole or ranitidine alone produced slight rises in the median pH of 0.47 (P < 0.05) and 0.26 (P < 0.05) units respectively. Those biopsies which were infected with Helicobacter pylori had a slightly elevated initial pH of about 0.2 of a pH unit (P < 0.05). This novel system provides a means to study human gastric acid secretion in vitro and may be valuable in the testing of new drugs on the stomach.

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The absorption of ranitidine from different segments of the intestinal tract was studied in a subject who had an anatomically divided small intestine. The results indicate that the drug is maximally absorbed from the small bowel rather than the stomach. Subsequent animal studies have shown that absorption of ranitidine in dogs is primarily duodenal followed by jejunal and ileal. The lack of gastric absorption, with predominantly small bowel absorption, may have investigational and therapeutic implications in a variety of gastrointestinal diseases.

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The hypothesis that the histamine H2 receptor blocker ranitidine potentiates neuromuscular paralysis during anaesthesia was tested in vivo in urethane anaesthetised and mechanically ventilated rats. Succinylcholine was administered as a bolus and constant-rate infusion to maintain 48.5% (+/- 2.5 SEM) tibialis anterior muscle paralysis in 14 rats. Ranitidine 2.5, 5, 10, or 20 mg.kg-1 iv, was then administered into groups of three or five rats. Ranitidine produced an immediate potentiation of neuromuscular paralysis followed by a transient reversal and then a continued steady-state potentiation. Peak potentiation occurred within 20 (+/- 3.3) sec and was maintained in all the rats to steady-state. Peak reversal was evident 70 (+/- 8.1) sec after ranitidine administration. There was an excellent relationship (r2 = 0.98, P < 0.001) between peak potentiation and serum ranitidine concentration with 50% potentiation occurring at 25.8 (+/- 1.1) micrograms.ml-1. There was a weak relationship (r2 = 0.39, P < 0.05) between peak reversal and serum ranitidine but potentiation at steady-state was not correlated to serum ranitidine concentration (r2 = 0.19, P > 0.05). These results show that ranitidine alters the neuromuscular action of succinylcholine in rats in a similar manner to cimetidine.

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Utilizing 2',7'-bis-(carboxyethyl)-5(6')-carboxyfluorescein (BCECF)-fluorescence, basal gastric acid secretion was determined from Na(+)-independent pH recovery (∆pH/min) following an ammonium pulse, which reflects H(+)/K(+)-ATPase activity. Experiments were performed in gastric glands from gene-targeted mice (gsk3 ( KI )) with PKB/serum and glucocorticoid-inducible kinase (SGK)-insensitive GSKα,β, in which the serines within the PKB/SGK phosphorylation site were replaced by alanine (GSK3α(21A/21A), GSK3β(9A/9A)).

zantac with alcohol

To evaluated the gastroprotective effects of standardized aqueous extract of Ziziphus jujuba (Z. jujuba) stem bark against acidified ethanol-induced gastric ulcers as well as anti helicobacter pylori activity of the plant extract in rats.

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Histamine appears to induce IL-6 production through H1R in human amnion cells.

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Ranitidine, procainamide and its active N-acetyl metabolite (NAPA) are renally secreted bases which can compete for carrier-mediated transport processes. The effect of ranitidine on the disposition of procainamide and NAPA was evaluated in 13 healthy men. Subjects were randomized to receive p.o. procainamide (1000 mg) alone (base line) and after p.o. ranitidine, 150 mg twice a day for 4 days. Blood and urine samples were collected at frequent intervals for 24 hr after the procainamide dose. There were no significant differences in the mean pharmacokinetic parameters of procainamide and NAPA after ranitidine coadministration compared to base line. However, individual changes did occur and regression analysis revealed a correlation between base-line procainamide renal clearance (CLR) and the change (delta) in CLR after ranitidine (r = 0.69, P less than .01). Subsequently, individuals were separated into Group I (n = 7) if they had a decrease or Group II (n = 6) if they had an increase in procainamide CLR after ranitidine. Mean +/- S.D. base-line procainamide CLR was 539 +/- 114 ml/min for Group I vs. 410 +/- 61 ml/min for Group II (P less than .01). During ranitidine coadministration, Group I had a 23% decrease in mean procainamide CLR (P less than .05), whereas Group II had a 21% increase (P less than .05). There were no significant differences in the metabolic clearance (CLM) of procainamide between the two groups at base line. However, Group I had a 45% increase (P less than .01) whereas Group II had a 41% decrease (P less than .05) in mean procainamide CLM with concomitant ranitidine.(ABSTRACT TRUNCATED AT 250 WORDS)

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zantac generic equivalent 2017-12-24

Prospective, randomized buy zantac study.

zantac syrup 2015-12-10

The protective effect of cimetidine, ranitidine and buy zantac a newer H2-receptor antagonist, mifentidine (proposed INN), on models of gastric and duodenal damage, caused by activation of H2 receptors, was studied. Gastric erosions were induced in rats by intravenous dimaprit (100 mg/kg) while duodenal damage was investigated in guinea pigs following subcutaneous administration of dimaprit (2 mg/kg, 6 doses). All the compounds reduced or abolished gastric and duodenal damage in rats and guinea pigs, mifentidine being more potent than both cimetidine and ranitidine. The antiulcer effect of the H2-receptor antagonists was related to the dose and to their ability to inhibit dimaprit-induced gastric acid secretion. The duration of action proved to be different for the three compounds. According to the two dosing schedules adopted to evaluate the duration of action, mifentidine, compared to cimetidine and ranitidine, required considerably lower oral dosages to display its protective effect.

zantac 20 mg 2016-01-27

H+, K(+)-ATPase inhibitors such as omeprazole are the antisecretory agents of choice for the management of gastric acid hypersecretory states, including the Zollinger-Ellison syndrome. However, long-term follow-up data on the overall efficacy and safety of these agents in large numbers of patients are lacking. In the current study we examined the long-term efficacy and safety of omeprazole in 116 patients with Zollinger-Ellison syndrome treated with oral omeprazole at a single centre for up to 114 months (mean +/- S.E.M. = 38 +/- 3 months). The initial omeprazole maintenance dose was established according to the acute upward dose titration method in 89/116 patients (77%). Gastric acid output was effectively controlled using 60 mg of omeprazole once daily in 41/89 patients (46%) and 22/89 patients (25%) required twice daily omeprazole therapy. The mean ranitidine equivalent dose for patients who required 60 mg omeprazole once daily (2.5 +/- 0.2 g/day) was significantly lower than the mean ranitidine equivalent dose for patients who required more than 60 mg omeprazole once daily (4.3 +/- 0.3 g/day). Long-term omeprazole maintenance therapy was discontinued in 36/116 patients (31%) but in no cases was discontinuation due either to drug-induced side-effects or uncontrolled gastric acid output. Fasting serum gastrin levels were significantly elevated above pre-treatment levels at only one time point during follow-up and were likely due to tumour growth rather than a drug effect. The final long-term omeprazole maintenance doses were lower than the initial doses but correlated closely with the pre buy zantac -omeprazole basal acid output (r = 0.41, P < 0.001) and ranitidine equivalent dose requirements (r = 0.49, P < 0.001). We conclude that omeprazole effectively and safely controls gastric acid hypersecretion in all patients with Zollinger-Ellison syndrome for up to nine years without evidence by tachyphylaxis.

zantac 60 mg 2017-05-05

The in vivo and in vitro effects on the aggregatory response of human platelets to ADP and collagen of a series of imidazole and non-imidazole histamine H2 receptor antagonists, and imidazole derivatives, have been studied. Bolus i.v. administration of the antagonists cimetidine and oxmetidine was without effect. However, inhibition of platelet aggregation was observed in vitro with oxmetidine, metiamide and to a lesser extent burimamide, but not with cimetidine or the non-imidazole antagonist ranitidine. Of the imidazole derivatives only imidazole and its 1-methyl analogue significantly affected platelet aggregation. The relationship between potency as a histamine H2 receptor antagonist, the presence of an imidazole ring buy zantac structure and the antiaggregatory effectiveness of these compounds is discussed. Although certain antagonists clearly inhibit platelet aggregation in vitro, effects are only seen at drug concentrations exceeding those achieved under normal therapeutic conditions; thus the clinical significance of these observations remains to be determined.

zantac generic ranitidine 2015-10-16

Crospovidone, buy zantac carrageenan, chitosan, pectinic acid, glycerides, β-CD, and cellulose derivatives are effective alternative spheronizing aids and can be used to prepare pellets without any plasticizer or lubricant. But pellets with polyethylene oxide can only be produced with the use of plasticizer and/or lubricant. However, none of them succeeded to provide the same flexibility in formulation and processing during extrusion-spheronization as observed for MCC (e.g., less water-holding capacity, narrow liquid range providing the correct rheology for extrusion-spheronization, addition of binder required to obtain sufficient mechanical strength).

zantac dosing 2017-10-18

Anti-ulcer agents may likely attenuate lesions outside the gastrointestinal tract, since they buy zantac had protected gastrectomized rats (a "direct cytoprotective effect"). Therefore, their therapeutic potential in lung/stomach lesions were shown. Rats received an intratracheal (i.t.) HCl instillation [1.5 ml/kg HCl (pH 1.75)] (lung lesion), and an intragastric (i.g.) instillation of 96% ethanol (gastric lesion; 1 ml/rat, 24 h after i.t. HCl instillation), then sacrificed 1 h after ethanol. Basically, in lung-injured rats, the subsequent ethanol-gastric lesion was markedly aggravated. This aggravation, however, in turn, did not affect the severity of the lung lesions in the further period, at least for 1 h of observation. Taking intratracheal HCl-instillation as time 0, a gastric pentadecapeptide, GEPPPGKPADDAGLV, M.W.1419, coded BPC 157 (10 microg, 10 ng, 10 pg), ranitidine (10 mg), atropine (10 mg), omeprazole (10 mg), were given [/kg, intraperitoneally (i.p.)] (i) once, only prophylactically [as a pre-treatment (at -1h)], or as a co-treatment [at 0)], or only therapeutically (at +18h or +24 h); (ii) repeatedly, combining prophylactic/therapeutic regimens [(-1 h)+(+24 h)] or [(0)+(+24 h)], or therapeutic/therapeutic regimens [(+18 h)+(+24 h)]. For all agents, combining their prophylactic and salutary regimens (at -1 h/+24 h, or at 0/+24 h) attenuated lung lesions; even if effect had been not seen already with a single application, it became prominent after repeated treatment. In single application studies, relative to controls, a co-treatment (except to omeprazole), a pre-treatment (at -1 h) (pentadecapeptide BPC 157 and atropine, but not ranitidine and omeprazole) regularly attenuated, while therapeutically, atropine (at +18 h), pentadecapeptide BPC 157 highest dose and omeprazole (at +24 h), reversed the otherwise more severe lung lesions.

zantac 150 generic 2017-12-09

Seventy-one percent (72/102) of the children preferred the taste of the ranitidine effervescent tablets compared with 29% (30/102) who preferred the syrup (p < 0.001). The majority of adults (71%) responded that they would prefer to administer the effervescent formulation based on taste. Adverse events consistent with product buy zantac labeling were mild and were reported in four children and three adults: headache (n = 3), drowsiness (n = 1), abdominal pain/cramps (n = 2), and bloating/gas (n = 1).

zantac dosing instructions 2016-12-20

There are limited published clinical outcome data evaluating the use of intravenous pantoprazole in patients with upper GI hemorrhage. However, there are several gastric pH studies suggesting that intravenous pantoprazole is effective in quickly obtaining and maintaining a pH >6. When considering the results from studies of high-dose intravenous omeprazole, in addition to the pantoprazole data, the relative efficacy of intravenous buy zantac proton-pump inhibitors appears to be superior to that of intravenous H(2)-receptor antagonists in providing a more predictable and sustained pH control.

zantac tablet 2016-07-07

ABSTRACT The toxic side effects of synthetic drugs may, in part, be arising due to their interactions with essential metal ions, especially when the metal ions are administered along with the drug as mineral supplements. In this paper we report the feasibility of establishing such drug-metal ion interactions through in vitro spectrophotometric studies, which are rapid and can be used for routine screening prior to clinical studies. The interaction of the drugs levothyroxine and ranitidine with eight metal ions, copper(II), chromium(III), molybdenum(VI), magnesium(II), calcium(II), iron(II), manganese(II), and zinc(II), buy zantac commonly used in mineral supplements, was verified through in vitro UV-visible spectrophotometric studies. The experiments were carried out at the physiological pH values 1.5, 7.4, and 8.0 and the concentrations of the drugs and mineral supplements used were comparable to those in their usual doses. These studies indicated interaction between ranitidine and calcium(II), magnesium(II), and iron(II) ions and between levothyroxine and copper(II) and iron(II) ions. A comparison of the results with those reported from clinical studies demonstrated the efficacy of this method.

zantac 2 mg 2015-09-04

Fifty buy zantac consecutive Helicobacter pylori-positive patients were randomly enrolled to receive either (A) bismuth subnitrate (300 mg q.d.s.), omeprazole (20 mg b.d.) and amoxycillin (500 mg q.d.s.), or (B) omeprazole (20 mg b.d.) and amoxycillin (500 mg q.d.s.). Both groups (n=25 each) received the medication for 14 days. H. pylori status was reassessed 30 days after completion of the therapy in order to evaluate eradication rates.

zantac and alcohol 2015-10-09

Helicobacter pylori infection of gastric antrum is associated with a majority of cases of peptic ulcer (70-100%). Studies have shown that when this organism is eradicated, the recurrence of ulcer falls to less than one-third of those in whom the infection persists or relapses. Monotherapy with bismuth salts, tinidazone or amoxycillin has been shown to result in early relapse and recurrence of ulcers. However, dual or triple therapy regimens are more effective. We conducted a randomised controlled study using tripotassium dicitrato bismuthate (TDB) (10 patients); amoxycillin (combined with ranitidine for ulcer healing) (9 patients) and dual therapy with both amoxycillin and TDB (10 patients). Our study buy zantac showed that relapse rates at the end of 3 months was significantly less if dual therapy with TDB and amoxycillin is used as compared to TDB alone (p less than 0.05).

zantac dosing infants 2016-02-01

Some of the problems involved buy zantac in the treatment and evaluation of drug therapy in peptic ulceration are discussed. The results of four multi-centre, double-blind, placebo-controlled clinical trials in 520 patients are reviewed. It has been shown that the potent suppressors of gastric acid secretion, histamine H2-blockers ranitidine and cimetidine, and 16,16-dimethyl prostaglandin E2, significantly accelerated the healing of peptic ulcers but that trithiozine had no beneficial effect.

zantac mg 2017-08-10

In this work, we have carried out a stereological and morphological study in order to Hytrin Dosage Forms verify the effects of Ranitidine on regenerating parietal cells. We have used a control group and operated or non-operated groups treated with 2, 10 and 50 mg/kg/day Ranitidine. In operated groups an ulcer was provoked by cauterization with a metallic plate in the gastric fundus. Groups treated with high doses of Ranitidine showed an increase in the connective tissue of the gastric mucosa. The stereological study in treated groups shows a decrease in the parietal volume density, and an increase in the cellular profile. Changes detected in the parietal volume density would originate a decrease in the production of CIH.

8 mg zantac 2015-07-03

Permanent removal of Helicobacter pylori leads to a dramatic drop in the recurrence rate of peptic ulcers. The NIH Consensus Conference recommends that Hp-positive patients with Tegretol Suspension duodenal or gastric ulcer should undergo eradication treatment. To date, however, there is no consensus on what constitutes optimal eradication treatment. Presently available therapy may be triple (bismuth plus two antibiotics), dual (acid inhibition and one antibiotic) or modified triple therapy (acid inhibition and two antibiotics). Among numerous treatment proposals, results gained with the H2 blocker ranitidine stand out, on account of the double-blind nature of the studies and the adequate number of cases involved. With modified triple therapy (300 mg ranitidine nocte and 3 times 750 mg amoxicillin daily) eradication rates ranging from 85 to 90%, and with dual therapy (600 mg ranitidine and 2 g amoxicillin daily) 60 to 65%, are obtained.

zantac 75 generic 2015-01-27

To test whether Aldactone 500 Mg eradication of Helicobacter pylori saves costs in the treatment of duodenal ulcer disease, compared with conventional antisecretory therapy.

zantac overdose 2017-10-30

Lansoprazole, 30 mg Propecia Generic Name once daily, is highly effective and safe in the short-term treatment of erosive oesophagitis.

zantac 48 tablets 2017-12-27

112 patients, 53 males, age 55 +/- 14 years (39 duodenal ulcer, 7 gastric ulcer and 66 gastritis) were treated with RMC, Artane Drug Information and 89 patients, 52 males, age 58 +/- 15 years (23 duodenal ulcer, 7 gastric ulcer and 59 gastritis) were treated with RMA. For RMC, intention-to-treat eradication results were 98% (59/60, 95% CI: 91-100%) and 95% (20/21, 95% CI: 76-100%) for metronidazole susceptible and resistant strains, respectively (P = 0.45). For RMA these figures were 87% (53/61, 95% CI: 76-94%) for metronidazole susceptible strains and 22% (2/9, 95% CI: 3-60%) for resistant strains (P = 0.0001).

cold medicine zantac 2017-03-09

To observe the curative effect of different duration of mild moxibustion in superficial gastritis patients with deficiency cold Hytrin Bph Dose pattern of spleen and stomach.

zantac reviews 2017-10-27

The results revealed a Aggrenox Open Capsule significant reduction in the sleep onset latency with famotidine administration, but since there were no effects of any of the medications in the multiple sleep latency test, this finding is of dubious clinical significance. Cimetidine revealed a small increase in subjective estimates of sleepiness. No effects on sleep-related respiratory parameters were noted.

dosage zantac infant 2016-08-18

Electrical activity was recorded in six post Imitrex 9 Tablets -cholecystectomy patients using bipolar serosal electrodes. Three patients were treated with intravenous cimetidine bolus in doses of 200 mg every four hours. Another three patients were treated with intravenous ranitidine bolus in doses of 50 mg every six hours. The frequency and the amplitude of the gastric electrical control activity (ECA) and the incidence of electrical response a activity (ERA) were evaluated before and after the administration of the drugs. The administration of cimetidine and ranitidine did not produce any statistically significant variation in the frequency and amplitude of the gastric ECA and the incidence of ERA. These results show that the effects of the H2-antagonists on gastric electrical activity had no clinical relevance.

zantac 150 mg 2017-02-07

Veins were isolated from 16 sites of the rabbit venous tree and responses to histamine and histamine receptor agonists were studied to characterize the histamine receptors. Isometric contraction and relaxation of ring segment preparations were recorded. Histamine produced concentration-dependent contractions in all veins in the resting state. Both the maximum response and pD2 value varied remarkably from vein to vein and regional differences in sensitivities to histamine varied considerably from previous findings in dog veins. Also in the precontracted state with a vasoconstricting agent, histamine predominantly contracted the veins. The contractile responses to histamine, in both resting and precontracted states, were antagonized competitively by the histamine H1-receptor antagonist, mepyramine. On the other hand, histamine relaxed the precontracted veins, in the presence of mepyramine. Selective H2-receptor agonists, dimaprit and impromidine, relaxed the precontracted veins even in the absence of mepyramine. These responses to histamine were antagonized competitively by the H2-receptor antagonist, cimetidine or ranitidine. The present study provides quantitative and systematic data regarding histamine receptors in rabbit veins. We propose that: 1) there are both vasoconstrictor H1-receptors and vasodilator H2-receptors, 2) histamine generally contracts rabbit veins through predominant H1-receptors and that 3) the H2-receptor-mediated relaxation does not depend on the presence of the endothelium.

zantac kids dosage 2016-05-19

We set out to complete the audit cycle of caesarean deliveries in order to determine if improvements could be achieved. This was a prospective review of clinical notes in a Central London Teaching Hospital. The study involved 152 women delivering between 18 May and 23 August 1998, and 226 women over the same time period in 1999. For each case, a proforma was completed within 72 hours of delivery. We recorded the total and emergency section rate; indications; decision-to-delivery times; reasons for delay; prescription of ranitidine and heparin; fetal blood samples and cord pH values. The total caesarean section rate decreased from 20.9% to 19.2%. The emergency section rate was unchanged at 14.8% in 1998 (70.9% of total) and 13.6% in 1999 (70.8% of total). Main reasons for emergency sections were failure to progress (59% in 1998, 47% in 1999) and fetal distress (27% in 1998, 34% in 1999). For failure to progress 76% of cases were performed within 1 hour in 1998 vs. 64% of cases in 1999. For fetal distress 39% of cases were delivered within 30 minutes in both years. Fetal blood samples were taken in 41% of fetal distress cases in 1998 and 34% in 1999. Cord pH was documented in 60% of emergency cases in 1998 (96% in 1999). Prescription of ranitidine rose from 53% to 81%. Heparin was well prescribed in both years (88% vs. 87%). Following the initial audit, the total caesarean section rate was significantly lower but there was no difference in the emergency section rate. The implementations had no effect on decision-to-delivery times or use of fetal blood sampling. Improvements were seen in obtaining cord pH values and ranitidine prescription.

zantac 500 mg 2017-11-13

Serum prolactin (PRL ng/ml) was measured in 7 male patients on cimetidine (CMT) and in 13 on ranitidine (RNT) before therapy and 5, 10, 15 and 30 days after; at the same intervals FSH (ng/ml), LH (ng/ml) and testosterone (ng/ml) were measured in 5 patients too, in order to ascertain hypothalamic, pituitary, gonadal dysfunction caused by H2 histamine blockers. In agreement with other authors, FSH, LH and testosterone were not affected: no statistical difference was found between basal values and the times of follow-up. In RNT-treated patients PRL showed a little, but not significant increase; in CMT-treated group PRL increased with a peak on 10th day (19.41 +/- 2.14 ng/ml vs. 9.50 +/- 1.72 ng/ml; P less than 0.01); on 30th day PRL levels were still higher than basal ones (15.85 +/- 2.38 ng/ml vs. 9.50 +/- 1.72 ng/ml; P less than 0.05). Unlike other trials we observed that PRL rises very early in oral treatment with CMT, perhaps for resetting of inhibiting factors, it trends to decrease and reach basal values shortly after 30th day notwithstanding therapy. It is now widely accepted that H2 blocker's action is on central histaminergic pathways modulating PRL secretion; in our opinion, the measured differences of PRL secretion with CMT and RNT in short term observations, are produced by different crossing of blood-brain barreer.

medicine zantac 2016-11-29

Parenteral histamine (H2)-receptor antagonists are frequently used to prevent upper gastrointestinal bleeding caused by stress-induced gastric mucosal damage in critically ill patients. It is generally agreed that the goal of therapy in this syndrome is the consistent elevation of gastric pH levels above a certain value, often set at 4, in order to prevent the underlying mucosal damage from progressing to bleeding. The three H2-receptor antagonists currently available in a parenteral form and suitable for this mode of prophylaxis are cimetidine, ranitidine, and famotidine. The pharmacodynamic and pharmacokinetic properties of these agents, as they relate to their use in prevention of stress ulceration bleeding, are discussed here. These agents are more noted for their pharmacodynamic and pharmacokinetic similarities in acid suppression, elimination, and metabolism than for their differences. Ranitidine and famotidine are more potent than cimetidine, and famotidine has a slightly longer half-life than do cimetidine and ranitidine, but current dosing recommendations take these differences into account so that the agents have equivalent efficacy. Cimetidine and ranitidine have been widely used in this application. Less experience has been obtained, to date, with famotidine. Recent studies with primed, continuous infusions of cimetidine indicate that dosing schedule may be the key to obtaining better efficacy in prophylaxis of stress-related mucosal damage. Similar studies with ranitidine have not yielded results as promising as those with cimetidine, however, and few data are available on famotidine.

zantac dosage infant 2016-10-09

Six healthy male volunteers received, on four separate occasions, 150 mL water containing 150 mg ranitidine and either 0 (control), 1,2.5, or 5 g PEG 400. The solutions were radiolabeled with technetium-99m to allow their gastrointestinal transit to be followed using a gamma camera. Urine samples were collected over a 24-h period to assess the amount of ranitidine excreted and hence absorbed.

zantac iv dose 2016-01-09

The effect of the H2 receptor antagonists, cimetidine and ranitidine, on Barrett's esophagus was assessed in a retrospective study. There was no evidence of regression of Barrett's epithelium in the 22 patients treated for a mean of 13 months with 800-1,600 mg/day cimetidine, or in the 13 patients treated for a mean of 5.7 months with 300 mg/day ranitidine. Eight of 12 esophageal (Barrett's) ulcers healed on cimetidine therapy over a mean period of 8.7 months, and eight of nine esophageal ulcers healed on ranitidine therapy over a mean period of 3.5 months. We conclude that short-term treatment with H2 blockade does not cause regression of Barrett's esophagus, although such treatment can heal esophageal ulcers.

toddler zantac dosage 2015-05-17

The purpose of this study was to investigate the suitability and reliability of n-in-one approach using FDA suggested compounds for standardising Caco-2 permeability experiments. Special attention was paid to the evaluation of rank order correlation and mechanistic insights of compound permeability. Transport studies with antipyrine, metoprolol, ketoprofen, verapamil, hydrochlorothiazide, ranitidine, mannitol and fluorescein were performed in 12- and 24-well formats, as single compounds and in cocktails under iso-pH 7.4 and pH-gradient (pH 5.5 vs. 7.4) conditions. Compounds were quantified using n-in-one LC/MS/MS analysis. The cocktail-dosing proved to be a feasible method to determine the permeability of the Caco-2 cell line and to introduce external standards for permeability tests. Even though sink conditions were lost in cocktail experiments for highly permeable compounds, the rank order of compound permeability and the classification to low and high permeability compounds remained unchanged between single and cocktail studies and permeability values of 12- and 24-well formats were directly comparable. Under pH-gradient conditions the margin between high and low permeability compounds was narrower due to the lower permeability (higher fraction of ionisation) of basic molecules. Of the compounds studied, antipyrine, metoprolol, hydrochlorothiazide and mannitol are suitable for evaluation and standardisation purposes of passive permeability, while fluorescein would function as paracellular marker under iso-pH 7.4. As efflux activity may vary between cell batches, verapamil is a useful marker for P-glycoprotein.

zantac generic target 2015-12-27

To compare prospectively the effectiveness of 1 year's treatment with pantoprazole versus ranitidine in order to prevent relapse after initial cure of reflux oesophagitis. For the first time the influence of the initial Helicobacter pylori status on therapeutic results was also taken into account.

zantac dosing information 2016-01-22

Interleukin-2 (IL-2) is recognized as a major activating signal for human natural killer (NK) cells. The presence of monocytes alters NK cell responsiveness to IL-2. Thus, while IL-2 effectively augments NK cell cytotoxicity (NKCC) in monocyte-depleted NK effector cells, it is relatively ineffective or even suppressive for NK cells in monocyte-containing, NK-cell-enriched mononuclear cell fractions. Here we report that concomitant treatment with IL-2 and the biogenic amine histamine synergistically augmented NKCC against K562 and Daudi target cells of CD3-/CD16+ human NK cells in the presence but not in the absence of monocytes. Addition of peripheral-blood monocytes, recovered by countercurrent centrifugal elutriation, to purified NK cells abrogated IL-2 induced NK cell activation, reconstituted the synergistic, NK-activating effects of histamine and IL-2, and strongly reduced baseline NKCC. The effects of histamine on baseline NKCC and on NK cell responsiveness to IL-2 were related to counteraction of monocyte-mediated NK cell suppression. By contrast, histamine did not affect baseline or IL-2-induced NKCC in mixtures of NK cells and monocytes when the latter cells were recovered after adherence. The effect of histamine on NK cell responsiveness to IL-2 was mediated by H2-type histamine receptors, as judged by mimicry exerted by the specific H2 receptor agonist dimaprit, but not by an H2-receptor-inactive derivative of this compound, N-methyldimaprit, and blocking by the H2 receptor antagonist ranitidine. Experiments in which monocytes and nonadherent NK cells were separately pretreated with ranitidine prior to histamine treatment suggested that NK-regulatory effects of histamine were mediated by H2 receptors on monocytes. Our data suggest that histamine may provide an important signal in the regulation of NK cell responsiveness to IL-2.

zantac pill picture 2015-06-29

Previous evidence from our laboratory has shown that histamine receptors located into the ventral hippocampus modulate learning and memory processes. Stimulation of histamine hippocampal sensitive receptors during the acquisition phase of a conditioned avoidance response to an ultrasonic tone was able to increase latency to escape and impair memory in the rat. Histamine application into the same hippocampal region also impaired the evocation of the response. The purpose of the present work was to evaluate if histaminergic neuron circuits have participation on the consolidation processes of the conditioned avoiding response. Male adult rats were implanted into the ventral hippocampus with microinjection cannulae and subjected consecutively to 2 sessions of 8 trials to learn an avoidance response after an ultrasonic tone of 40 kHz was on, as it was previously described. Immediately after the training period was over, or 15 min after, different groups of rats were microinjected with saline, histamine or a combination of histamine H(1)- or H(2)-receptor antagonists. Twenty four hours later, animals were tested in a new session for the retention of the avoiding response. Results showed that histamine treatment interfered with the consolidation of the avoiding response, affecting latency and the memory efficiency. This interference was mediated by histamine H(1)- and H(2)-receptors, since pretreatment with pyrilamine or ranitidine blocked the inhibitory effect of histamine. Results support the concept that histaminergic neurotransmission modulates learning and memory by affecting selectively the three stages of learning.