Generic Combivir is used for treating HIV infection in combination with other medicines.
Other names for this medication:
Also known as: Lamivudine\Zidovudine.
Generic Combivir is an antiviral combination. Lamivudine and Zidovudine are both nucleoside analogues that work together to slow the growth of HIV by blocking an enzyme needed by the virus to reproduce.
Generic Name of Generic Combivir is Lamivudine plus Zidovudine.
Combivir is also known as Lamivudine, Zidovudine, Duovir.
Brand name of Generic Combivir is Combivir.
Generic Combivir is available in tablets which should be taken orally.
Take Generic Combivir with or without food.
Continue to use Generic Combivir even if you feel well. Do not miss any doses.
Take Generic Combivir at the same time each day.
Do not stop taking it suddenly.
If you overdose Generic Combivir and you don't feel good you should visit your doctor or health care provider immediately.
Store between 2 and 30 degrees C (36 and 86 degrees F) away from moisture and heat. Keep the container tightly closed. Throw away any unused medicine after the expiration date. Keep out of the reach of children.
The most common side effects associated with Combivir are:
Side effect occurrence does not only depend on medication you are taking, but also on your overall health and other factors.
Be careful with Generic Combivir while you are pregnant or have nurseling. Generic Combivir can pass in breast milk and harm your baby.
Do not use Generic Combivir if you are allergic to Generic Combivir components.
Do not use Generic Combivir if you are taking stavudine, zalcitabine, or other medicines containing lamivudine or zidovudine.
Do not use Generic Combivir if you have severe kidney problems, decreased liver function, abnormal liver function tests, or high levels of lactic acid in the blood (lactic acidosis).
Be careful with Generic Combivir if you weigh less than 66 lbs (30 kg) .
Be careful with Generic Combivir if you have a history of liver problems (eg, abnormal liver function tests, hepatitis B infection) or lactic acidosis, kidney problems, a bone marrow disorder, pancreas problems, abnormal blood cell counts, or nerve or muscle problems.
Be careful with Generic Combivir if you are significantly overweight.
Be careful with Generic Combivir if you take interferon alfa or ribavirin because serious liver problems may occur; stavudine because its effectiveness may be decreased by Generic Combivir; clarithromycin, doxorubicin, rifampin, or zalcitabine because they may decrease Generic Combivir 's effectiveness; acetaminophen, ganciclovir, ibuprofen, methadone, probenecid, trimethoprim/sulfamethoxazole, valproic acid, vancomycin, or zalcitabine because they may increase the risk of Generic Combivir 's side effects or toxic effects.
Do not stop taking it suddenly.
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This is the first study to determine the actual costs of HIV treatment in rural areas of China. Costs for ARV drugs represented the major portion of HIV medical expenditures. Initiating HAART in patients with higher CD4 cell count levels is likely to reduce treatment expenses for ADEs and OIs in patients with AIDS.
In 2010/2011, regional commissioners withdrew payment for the fixed-dose combination Combivir, forcing a switch to component drugs. This was deemed clinically acceptable and annual savings of £44 k expected. We estimated the true costs of switching and examined patient outcomes. Information for 46 patients using Combivir was extracted from case notes for each clinical contact in the 12 months pre- and post-switch (clinician seen, tests, antiretrovirals). Post-switch care costs £93/patient more annually versus pre-switch (95% CI £424 to £609), yielding £4278/year more post-switch for all patients. Drug and pathology costs were more expensive post-switch and extra clinical visits required. None of these results were statistically significant. Forty-two per cent of patients switched directly or in the subsequent year to an alternative fixed-dose combination rather than generics. Costs in this group were significantly higher post-switch driven by drug cost. Six patients (13%) reported problems with the switch including confusion around dosing and new side effects. As less-expensive generic antiretroviral drugs become available, it may appear cheaper to switch from fixed-dose combinations to component drugs. However, the additional clinical costs involved may outweigh the initial cost savings of the drugs and switching may cause confusion for some patients, risking loss of adherence.
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In contrast to resource-rich countries, most HIV-infected patients in resource-limited countries receive treatment without virological monitoring. There are few long-term data, in this setting, on rates of viral suppression or switch to second-line antiretroviral therapy. The DART trial compared clinically driven monitoring (CDM) versus routine laboratory (CD4/haematology/biochemistry) and clinical monitoring (LCM) in HIV-infected adults initiating therapy. There was no virological monitoring in either study group during follow-up, but viral load was measured in Ugandan participants at trial closure. Two thousand three hundred and seventeen (2317) participants from this country initiated antiretroviral therapy with zidovudine/lamivudine plus tenofovir (n = 1717), abacavir (n = 300), or nevirapine (n = 300). Of 1896 (81.8%) participants who were alive and in follow-up at trial closure (median 5.1 years after therapy initiation), 1507 (79.5%) were on first-line and 389 (20.5%) on second-line antiretroviral therapy. The overall switch rate after the first year was 5.6 per 100 person-years; the rate was substantially higher in participants with low baseline CD4 counts (<50 cells/mm3). Among 1207 (80.1%) first-line participants with viral load measured, HIV RNA was <400 copies/ml in 963 (79.8%), 400-999 copies/ml in 37 (3.1%), 1,000-9,999 copies/ml in 110 (9.1%), and ≥10,000 copies/ml in 97 (8.0%). The proportion with HIV RNA <400 copies/ml was slightly lower (difference 7.1%, 95% CI 2.5 to 11.5%) in CDM (76.3%) than in LCM (83.4%). Among 252 (64.8%) second-line participants with viral load measured (median 2.3 years after switch), HIV RNA was <400 copies/ml in 226 (89.7%), with no difference between monitoring strategies. Low switch rates and high, sustained levels of viral suppression are achievable without viral load or CD4 count monitoring in the context of high-quality clinical care.
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NOD.c3c4 mice were treated with combination antiretroviral therapy. Response to treatment was studied by measuring MMTV RNA in the liver, liver enzyme levels in serum and liver histology using a modified Ishak score.
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Subjective and objective improvements in psychotic symptoms and presentation.
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To evaluate the efficacy and safety of nelfinavir or nevirapine associated to zidovudine/lamivudine in HIV-infected naive patients.
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Records of 708 HIV positive hospitalised patients were reviewed, 150 patients had neurological complications; giving a six-year point prevalence of 21.2%. Males were 86 (57.3%) and females 64 (42.7%) M:F ratio = 1.3:1. Mean age was 38.84 years. The five commonest neurological complications were; cryptococcal meningitis 33 (22%), encephalitis 28 (18.7%), cerebral toxoplasmosis 19 (12.7%), stroke 19 (12.7%) and tuberculous meningitis 16 (10.7%). Overall, 72 patients (63%) had CD4+ counts done. Cryptococcal meningitis patients' CD4+ count, (mean 60, median 17, range 1-273/cmm). Encephalitis patients' CD4+count, (mean 82, median 54, range 3-495/cmm). Cerebral toxoplasmosis patients' CD4+count, (mean 59, median 58, range 11-120/cmm). Stroke patients' CD4+ count, (mean 120, median 30, range 15-394/cmm) and Tuberculous meningitis patients' CD4+ count, (mean 67, median 62 and range 12-154/cmm). The other rare neurological manifestations included peripheral neuropathy, HIV associated dementia (HAD), myelopathy and myopathy amongst others. One hundred and eight (72%) patients were on anti-retroviral therapy. The commonest drugs used in various regimen combinations included efavirenz and combivir. Fourteen (9.3%) patients died while in hospital; eight of them were among those with the top five neurological complications.
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A total of 208 patients were failing with NNRTI + zidovudine + lamivudine and 92 with NNRTI + non-TA. No significant differences were observed between the non-TA group and the ZDV group regarding the time of virological failure [median (interquartile range): 12 (8-25) vs. 13 (9-32) months, respectively; P = 0.119] and viraemia [median (interquartile range): 4.0 (3.2-4.9) vs. 4.0 (3.3-4.7) log₁₀ copies/mL, respectively; P = 0.894]. Resistance to reverse transcriptase inhibitors (RTIs) occurred at a significant lower frequency in the non-TA group than in the ZDV group (54.3 vs. 75.5%, respectively; P = 0.001). This difference was mainly attributable to a significantly lower prevalence of NNRTI resistance (54.3 vs. 74.0%, respectively; P = 0.002) and of the nucleoside reverse transcriptase inhibitor (NRTI) mutation M184V (23.9 vs. 63.5%, respectively; P < 0.001) in the non-TA group compared with the ZDV group. As expected, the mutation K65R was found only in the non-TA group (18.5%; P < 0.001).
To determine the prevalence of dyslipidemia in HIV-infected patients using the first-line antiretroviral (ARV) drugs triple regimen.
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We conducted a study to evaluate the tolerance of the zidovudine (AZT), lamivudine (3TC) and nevirapine (NVP) combination regimen in HIV-1 patients by a descriptive analytical retrospective study of all HIV-1 patients receiving AZT-3TC-NVP combination between 2008 and 2011. Seventy patients were included. Two thirds of the patients presented at least one side effect (44 cases). The digestive disorders (15 cases) and neuropsychiatric (14 cases) were the most frequent. Epigastralgia (20%), headaches (20%) and arthralgias (13%) were main side effects. A maculo-papular exanthema was noted in three cases. During the follow-up, five patients presented with anemia. No patient presented hepatic cytolysis due to NVP. All the patients followed for more than six months presented a side effect against 29.7% when the duration of treatment was equal to or less than 6 months (p=10(-5)). Most of the side effects due to the association AZT/3TC/NVP are minor. The evaluation of the clinical and biological tolerance must be maintained during all the follow-up.
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MERIT was a randomized trial comparing maraviroc (MVC) + Combivir versus efavirenz (EFV) + Combivir in drug-naive patients screened as having R5 HIV-1 by the original Trofile assay (OTA). We retrospectively evaluated treatment response after rescreening for viral tropism using population-based V3-loop sequencing.
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(1) Combivir is a fixed-dose combination of two HIV reverse transcriptase inhibitors: zidovudine (300 mg) + lamivudine (150 mg). (2) A meta-analysis of four trials shows that this combination is more effective clinically than zidovudine monotherapy. One trial also shows that clinical efficacy is even better with the triple combination of the protease inhibitor indinavir with zidovudine + lamivudine. (3) The risk of anaemia and neutropaenia necessitates blood cell monitoring during treatment. (4) Compared with lamivudine and zidovudine taken separately, Combivir does not reduce the frequency of doses (two a day), but the daily number of tablets falls from four to two, provided that the patient does not require dose adjustment.
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Pneumocystis jirovecii pneumonia has historically been one of the most common opportunistic pneumonias and life-threatening infectious complications in HIV-infected patients. After the introduction of combination antiretroviral therapy, the incidence of Pneumocystis pneumonia and other opportunistic infections has decreased dramatically. Nowadays Pneumocystis pneumonia still occurs in patients unaware of their HIV status, in those not receiving combination antiretroviral therapy, or in those in whom it is ineffective due to resistance. Age factor is the diagnosis delaying one: patients aged more than 50 years are diagnosed with AIDS later than younger persons. Pneumocystis was thought to be a species of protozoa. Over the last 20 years, Pneumocystis has been shown to be a fungus, to be genetically diverse, host species specific, to colonize individuals with minor immunosuppression, and to cause clinical disease by "new" infection in addition to reactivation of latent childhood-acquired infection. Recently, the microorganism Pneumocystis carinii causing disease in humans has been renamed to Pneumocystis jirovecii. This article presents a clinical case of late diagnosis of Pneumocystis jirovecii pneumonia in a 62-year-old patient unaware of her HIV status and a review of literature reflecting epidemiological issues of Pneumocystis jirovecii and latest discoveries related to Pneumocystis as well as the rationale for renaming it.
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Following the introduction of a HIV post-exposure prophylaxis program in the Korle-Bu Teaching Hospital in January 2005, the incidence of adverse events and adherence were documented in occupationally-exposed healthcare workers (HCWs) and healthcare students (HCSs). Cohort event monitoring was used in following-up on exposed HCWs/HCSs for the two study outcomes; adverse events and adherence. All adverse events reported were grouped by MedDRA system organ classification and then by preferred term according to prophylaxis regimen. Adherence was determined by the completion of prophylaxis schedule. Cox proportional regression analysis was applied to determine the factors associated with the cohort study outcomes. Differences in frequencies were tested using the Chi square test and p < 0.05 was considered statistically significant.
Abacavir/lamivudine (Epzicom) and emtricitabine/tenofovir (Truvada), two new once-daily fixed-dose NRTI combinations, have been approved for use in antiretroviral regimens to treat HIV infection. Epzicom appears to be as effective as its components taken separately and, in one study, Truvada was at least as effective as zidovudine/lamivudine (Combivir). Use of once-daily fixed-dose combinations means less flexibility in dosing, and some patients with hepatic or renal impairment will not be able to take them.
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A total of 228 exposed HCWs/HCSs were followed up during the study, made up of 101 exposed HCWs/HCSs administered lamivudine/zidovudine (3TC/AZT) for 3 days; 75 exposed HCWs/HCSs administered lamivudine/zidovudine (3TC/AZT) for 28 days; and 52 exposed HCWs/HCSs administered lamivudine/zidovudine/lopinavir-ritonavir (3TC/AZT/LPV-RTV) for 28 days. The frequency of adverse events was 28% (n = 28) in exposed HCWs/HCSs administered 3TC/AZT for 3 days, 91% (n = 68) in exposed HCWs/HCSs administered 3TC/AZT for 28 days and 96% (n = 50) in exposed HCWs/HCSs administered 3TC/AZT/LPV-RTV for 28 days. Nausea was the most commonly reported adverse events in all three regimens. Adherence was complete in all exposed HCWs/HCSs administered 3TC/AZT for 3days, 56% (n = 42) in exposed HCWs/HCSs administered 3TC/AZT for 28 days and 62% (n = 32) in exposed HCWs/HCSs administered 3TC/AZT/LPV-RTV for 28 days. In the Cox regression multi-variate analysis, exposed HCWs/HCSs administered 3TC/AZT for 3 days were 70% less likely to report adverse events compared with exposed HCWs/HCSs administered 3TC/AZT for 28 days (Adjusted HR = 0.30 [95% CI, 0.18-0.48], p < 0.001). Exposed HCWs/HCSs administered 3TC/AZT for 3 days were 75% more likely to adhere to the schedule compared with exposed HCWs/HCSs administered 3TC/AZT for 28 days (Adjusted HR = 1.75 [95% CI, 1.16-2.66], p = 0.008).
To evaluate the effect of antiretroviral treatment on aminotransferase serum levels in treatment-naïve patients infected with human immunodeficiency virus (HIV).
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To determine the profile of clinical and laboratory characteristics of hospitalised HIV positive patients with neurological complications at a private hospital in Nairobi, Kenya from January 2000 to June 2005.
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In this Phase I/II open-label pharmacokinetic study, 42 children weighing 6-30 kg treated with NVP-based HAART for ≥4 weeks were randomized to receive the FDC tablets (GPO-VIR Z30) or the liquid formulations. Dosing was weight-based. Intensive 12-h blood sampling was performed after 2 weeks; subjects then crossed-over to the alternate formulation at equal doses and sampling repeated 2 weeks later. Pharmacokinetic parameters were determined by non-compartmental analysis. Buccal-swab samples were collected for cytochrome P450 (CYP)2B6 polymorphism analysis.
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After starting treatment with Combivir-containing regimens viral load and CD4(+) T-cell count improved as well as the control group. Rates of adverse events in Combivir group and ZDV (400 mg/day) + 3TC group were 50.9% (28/55) and 60% (12/20), respectively. Some of these Japanese patients who started Combivir regimen as a first-line HAART (primary Combivir group) showed some decrease in hemoglobin levels or neutrophil counts within 6 months. However, a significant recovery of these indices of hematological toxicities occurred in patients who continued the regimen for 18-24 months.
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While it appears that protease inhibitors in combination therapies are saving lives, questions continue: (1) which combinations of protease inhibitors and other antiretroviral agents are most effective in restoring immune function, (2) how these combinations can be used most effectively, and (3) what is the best time to start using them? An evaluation is presented on the immunological value of specific drug cocktail combinations and a comparison of the best and worst drug combinations and the reasons for this assessment. It indicates that Norvir is the most effective of all four protease inhibitors in preventing opportunistic infections, lymphomas, and cancers. D4T and 3TC are the safest and most effective of the nucleosides for preventing or remitting opportunistic infections when used with protease inhibitors. Rescriptor is the most therapeutic of the two non-nucleoside reverse transcriptase inhibitors in increasing absorption of protease inhibitors. The best drug combination therapies are listed as follows: Norvir plus Rescriptor; Norvir plus D4T; Norvir plus 3TC; Norvir, Rescriptor, and D4T; Norvir, Rescriptor, and 3TC; Norvir, D4T, and 3TC; and Crixivan or Viracept plus Rescriptor plus either D4T or 3TC. The worst drug combination therapies are listed as follows: AZT plus ddI (used in combination with a protease inhibitor); AZT or ddI or Combivir (used in combinations with a protease inhibitor); and any two protease inhibitors used together in any person with active hepatitis or elevated liver enzymes or impaired kidney function.
The results of this study support those previously seen in healthy volunteer studies that showed that efavirenz reduces maraviroc exposure, whereas lopinavir/ritonavir increases maraviroc exposure. These data also suggest that nevirapine does not lead to a clinically significant effect on maraviroc pharmacokinetics.
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In the equivalence study, treatment-naive patients were assessed for HIV-1 RNA, CD4 cell count and genotype. The same assessments plus phenotype were made in the intensification study. Serious adverse events were recorded in the equivalence study and all adverse events in the intensification study.
Although most uninfected infants born to women infected with HIV-1 show no clinical evidence of mitochondrial compromise, mitochondrial dysfunction has been reported in children born to women receiving zidovudine and/or lamivudine during pregnancy. In this pilot study we examined mitochondrial integrity in HIV-1-uninfected infants born to HIV-1-infected women receiving Combivir during pregnancy.
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There is limited evidence on the efficacy of post-exposure prophylaxis (PEP) for sexual exposures. We sought to determine the factors associated with adherence to treatment and describe the incidence of PEP failures in a Montreal clinic.
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Commonly used guidelines for the management of human immunodeficiency virus (HIV) infection (highly active antiretroviral therapy, HAART) include drug combinations such as tenofovir disoproxil fumarate (TDF) + lamivudine (3TC) and combivir [zidovudine (AZT) + 3TC] + efavirenz (EFV). These combinations may enhance the genotoxic effects induced by such drugs individually, since the therapy requires lifelong adherence and the drugs have unknown effects during treatment. Thus, the evaluation of the benefits and risks of HAART is of great importance. In order to assess the cytotoxic and genotoxic potential of three concentrations of each of the antiretroviral combinations TDF + 3TC (800 + 400, 1600 + 800, and 3200 + 1600 mg/kg body weight, BW) and combivir + EFV (200 + 100 + 400, 400 + 200 + 800, and 800 + 400 + 1600 mg/kg BW) after two exposure periods (24 h and 48 h), in the present study the in vivo comet assay (single-cell gel electrophoresis) and the mouse bone marrow micronucleus test were used. Neither TDF + 3TC nor combivir + EFV induced DNA damage at any concentrations tested after 24 h or 48 h using the comet assay. After 24 h, both combinations increased the micronucleus frequency at all concentrations tested. After 48 h, combivir + EFV increased the micronucleated polychromatic erythrocyte (MNPCE) frequency at the two highest concentrations tested. Polychromatic erythrocytes (PCE)/normochromatic erythrocytes (NCE) ratio was high for both combinations, suggesting that they can be mitogenic. Since genotoxicity may be related to carcinogenesis, it is necessary to conduct further studies to verify the long-term mutagenic effects of these drugs.
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