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LAMIVUDINE And ZIDOVUDINE is a brand name for Lamivudine. The medicine, its uses, side effects and dosage are the same regardless of brand.
Used for: 1 INDICATIONS & USAGE Lamivudine and zidovudine tablets a combination of 2 nucleoside analogues, are indicated in combination with other antiretrovirals for the treatment of human immunodeficiency virus type 1 (HIV-1) infection. Lamivudine and zidovudine tablets, a combination of 2 nucleoside analogue reverse…
Verbatim from this product's FDA label. Tap a section to expand.
2 DOSAGE & ADMINISTRATION • Adults and Adolescents weighing greater than or equal to 30 kg: 1 tablet orally twice daily. 1) • Pediatrics weighing greater than or equal to 30 kg: 1 tablet orally twice daily. 2) • Because lamivudine and zidovudine tablet is a fixed-dose tablet and cannot be dose adjusted, lamivudine and zidovudine tablet is not recommended in patients requiring dosage adjustment or with hepatic impairment or experiencing dose-limiting adverse reactions.
1 Recommended Dosage for Adults and Adolescents The recommended dosage of lamivudine and zidovudine tablet in HIV-1-infected adults and adolescents weighing greater than or equal to 30 kg is 1 tablet (containing 150 mg of lamivudine and 300 mg of zidovudine) taken orally twice daily.
2 Recommended Dosage for Pediatric Patients The recommended dosage of scored lamivudine and zidovudine tablets for pediatric patients who weigh greater than or equal to 30 kg and for whom a solid oral dosage form is appropriate is 1 tablet administered orally twice daily.
Before prescribing lamivudine and zidovudine tablets, children should be assessed for the ability to swallow tablets. If a child is unable to reliably swallow a lamivudine and zidovudine tablet, the liquid oral formulations should be prescribed: EPIVIR (lamivudine) oral solution and RETROVIR (zidovudine) syrup.
4)]. 6)]. 7)]. • patients experiencing dose-limiting adverse reactions. Liquid and solid oral formulations of the individual components of lamivudine and zidovudine tablets are available for these populations .
1)]. 2)]. 3)]. 4)]. 5)]. 5)]. 6)]. 7)]. 8)]. • Most commonly reported adverse reactions (incidence greater than or equal to 15%) in clinical trials of combination lamivudine and zidovudine were headache, nausea, malaise and fatigue, nasal signs and symptoms, diarrhea, and cough.
gov/medwatch . 1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared with rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice.
Lamivudine plus Zidovudine Administered as Separate Formulations In 4 randomized, controlled trials of EPIVIR 300 mg per day plus RETROVIR 600 mg per day, the following selected adverse reactions and laboratory abnormalities were observed (Tables 1 and 2).
Table 1. 6)]. Selected laboratory abnormalities observed during therapy are listed in Table 2. Table 2. 2% (72) ULN = Upper limit of normal. ANC = Absolute neutrophil count. n = Number of subjects assessed. a Frequencies of these laboratory abnormalities were higher in subjects with mild laboratory abnormalities at baseline.
2 Postmarketing Experience The following adverse reactions have been identified during postmarketing use. Because these reactions are reported voluntarily from a population of unknown size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
8)]. Cardiovascular Cardiomyopathy. Endocrine and Metabolic Gynecomastia, hyperglycemia. Gastrointestinal Oral mucosal pigmentation, stomatitis. General Vasculitis, weakness. Hemic and Lymphatic Anemia, (including pure red cell aplasia and anemias progressing on therapy), lymphadenopathy, splenomegaly.
6)]. Hypersensitivity Sensitization reactions (including anaphylaxis), urticaria. Musculoskeletal Muscle weakness, CPK elevation, rhabdomyolysis. Nervous Paresthesia, peripheral neuropathy, seizures. Respiratory Abnormal breath sounds/wheezing.
5 WARNINGS AND PRECAUTIONS • Hepatic decompensation, some fatal, has occurred in HIV-1/HCV co-infected patients receiving combination antiretroviral therapy and interferon alfa with/without ribavirin. Discontinue lamivudine and zidovudine tablet as medically appropriate and consider dose reduction or discontinuation of interferon alfa, ribavirin, or both.
5) • Exacerbation of anemia has been reported in HIV-1/HCV co-infected patients receiving ribavirin and zidovudine. Coadministration of ribavirin and zidovudine is not advised. 5) • Pancreatitis: Use with caution in patients with a history of pancreatitis or other significant risk factors for pancreatitis.
Discontinue treatment as clinically appropriate. 6) • Immune reconstitution syndrome and lipoatrophy have been reported in patients treated with combination antiretroviral therapy. 1 Hemotologic Toxicity/Bone Marrow Suppression Zidovudine, a component of lamivudine and zidovudine tablet, has been associated with hematologic toxicity including neutropenia and anemia, particularly in patients with advanced HIV-1 disease.
1)]. Frequent blood counts are strongly recommended in patients with advanced HIV-1 disease who are treated with lamivudine and zidovudine tablet. Periodic blood counts are recommended for other HIV-1-infected patients. If anemia or neutropenia develops, dosage interruption may be needed.
2 Myopathy Myopathy and myositis, with pathological changes similar to that produced by HIV-1 disease, have been associated with prolonged use of zidovudine, and therefore may occur with therapy with lamivudine and zidovudine tablet.
3 Lactic Acidosis and Severe Hepatomegaly with Steatosis Lactic acidosis and severe hepatomegaly with steatosis, including fatal cases, have been reported with the use of nucleoside analogues, including lamivudine and zidovudine (components of lamivudine and zidovudine tablet ).
4 CONTRAINDICATIONS Lamivudine and zidovudine tablets are contraindicated in patients with a previous hypersensitivity reaction to lamivudine or zidovudine. Lamivudine and zidovudine tablets are contraindicated in patients with a previous hypersensitivity reaction to lamivudine or zidovudine.
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Not medical advice. Always read the patient information leaflet and follow your prescriber or pharmacist.
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Skin Alopecia, erythema multiforme, Stevens-Johnson syndrome.
A majority of these cases have been in women. Female sex and obesity may be risk factors for the development of lactic acidosis and severe hepatomegaly with steatosis in patients treated with antiretroviral nucleoside analogues . See full prescribing information for EPIVIR (lamivudine) and RETROVIR (zidovudine).
Treatment with lamivudine and zidovudine tablet should be suspended in any patient who develops clinical or laboratory findings suggestive of lactic acidosis or pronounced hepatotoxicity, which may include hepatomegaly and steatosis even in the absence of marked transaminase elevations.
4 Patients with Hepatitis B Virus Co-infection Posttreatment Exacerbations of Hepatitis Clinical and laboratory evidence of exacerbations of hepatitis have occurred after discontinuation of lamivudine. See full prescribing information for EPIVIR (lamivudine).
Patients should be closely monitored with both clinical and laboratory follow-up for at least several months after stopping treatment. Emergence of Lamivudine-Resistant HBV Safety and efficacy of lamivudine have not been established for treatment of chronic hepatitis B in subjects dually infected with HIV-1 and HBV.
Emergence of hepatitis B virus variants associated with resistance to lamivudine has been reported in HIV-1-infected subjects who have received lamivudine-containing antiretroviral regimens in the presence of concurrent infection with hepatitis B virus.
See full prescribing information for EPIVIR (lamivudine). 5 Use with Interferon- and Ribavirin-Based Regimens Patients receiving interferon alfa with or without ribavirin and lamivudine and zidovudine tablet should be closely monitored for treatment-associated toxicities, especially hepatic decompensation, neutropenia, and anemia.
See full prescribing information for EPIVIR (lamivudine) and RETROVIR (zidovudine). Discontinuation of lamivudine and zidovudine tablets should be considered as medically appropriate. , Child-Pugh greater than 6) (see full prescribing information for interferon and ribavirin).
Exacerbation of anemia has been reported in HIV-1/HCV co-infected patients receiving ribavirin and zidovudine. Coadministration of ribavirin and lamivudine and zidovudine tablets are not advised. 6 Pancreatitis Lamivudine and zidovudine tablet should be used with caution in patients with a history of pancreatitis or other significant risk factors for the development of pancreatitis.
1)]. 7 Immune Reconstitution Syndrome Immune reconstitution syndrome has been reported in patients treated with combination antiretroviral therapy, including lamivudine and zidovudine tablet. During the initial phase of combination antiretroviral treatment, patients whose immune systems respond may develop an inflammatory response to indolent or residual opportunistic infections (such as Mycobacterium avium infection, cytomegalovirus, Pneumocystis jirovecii pneumonia [PCP], or tuberculosis), which may necessitate further evaluation and treatment.
Autoimmune disorders (such as Graves’ disease, polymyositis, and Guillain-Barré syndrome) have also been reported to occur in the setting of immune reconstitution; however, the time to onset is more variable, and can occur many months after initiation of treatment.
8 Lipoatrophy Treatment with zidovudine, a component of lamivudine and zidovudine tablets, has been associated with loss of subcutaneous fat. The incidence and severity of lipoatrophy are related to cumulative exposure . This fat loss, which is most evident in the face, limbs, and buttocks, may be only partially reversible and improvement may take months to years after switching to a non-zidovudine- containing regimen.
Patients should be regularly assessed for signs of lipoatrophy during therapy with zidovudine-containing products, and if feasible, therapy should be switched to an alternative regimen if there is suspicion of lipoatrophy.