COMBIVIR® (lamivudine/zidovudine)
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Indication and Usage
COMBIVIR in combination with other HIV medicines is indicated for the treatment of HIV infection.
Important Safety Information
- Lactic acidosis and severe hepatomegaly with steatosis, including fatal cases, have been reported.
- Zidovudine has been associated with hematologic toxicity, including neutropenia and severe anemia, especially in advanced HIV disease, and with symptomatic myopathy after prolonged use.
- Severe acute exacerbations of hepatitis B have been reported in patients who are co-infected with hepatitis B virus (HBV) and HIV and have discontinued lamivudine, which is one component of COMBIVIR. Hepatic function should be monitored closely with both clinical and laboratory follow-up for at least several months in patients who discontinue COMBIVIR and are co-infected with HIV and HBV. If appropriate, initiation of anti-hepatitis B therapy may be warranted.
- Hepatic decompensation (some fatal) has occurred in HIV/HCV co-infected patients receiving combination antiretroviral therapy for HIV and interferon with or without ribavirin. Patients receiving interferon with or without ribavirin and COMBIVIR should be closely monitored for treatment-associated toxicities, especially hepatic decompensation, neutropenia, and anemia. Discontinuation of COMBIVIR should be considered as medically appropriate.
- Immune reconstitution syndrome has been reported in patients treated with combination antiretroviral therapy, including COMBIVIR. During the initial phase of combination antiretroviral treatment, patients whose immune system responds 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.
- Redistribution/accumulation of body fat has been observed in patients receiving antiretroviral therapy. The causal relationship, mechanism, and long-term consequences of these events are currently unknown.
- Most frequent adverse events were headache (35%), nausea (33%), malaise/fatigue (27%), and nasal signs and symptoms (20%).
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