DUOVIR TAB

About

Duovir is a fixed-dose combination tablet containing two nucleoside reverse transcriptase inhibitors (NRTIs): lamivudine and zidovudine. Both drugs work by inhibiting the enzyme reverse transcriptase, which is crucial for the replication of the human immunodeficiency virus (HIV). By blocking this enzyme, they prevent the virus from converting its RNA into DNA, thereby disrupting the viral life cycle and reducing the viral load in the body. This combination therapy is a cornerstone of antiretroviral treatment (ART) for HIV-1 infection, helping to improve immune function, reduce the risk of opportunistic infections, and prolong the lives of individuals living with HIV. It is typically used as part of a multi-drug regimen.

Uses

• Treatment of HIV-1 infection in adults.
• Treatment of HIV-1 infection in children.
• Part of a highly active antiretroviral therapy (HAART) regimen.
• Prevention of mother-to-child HIV transmission (zidovudine component).

Directions For Use

Take orally, usually twice daily, with or without food, as prescribed by your healthcare provider. Adhere strictly to the dosing schedule.

Benefits

• Reduces HIV viral load.
• Increases CD4+ cell counts.
• Improves immune system function.
• Reduces risk of opportunistic infections.
• Slows progression of HIV disease.
• Convenient fixed-dose combination.

Side Effects

• Nausea
• Vomiting
• Diarrhea
• Headache
• Fatigue
• Insomnia
• Anemia (zidovudine-related)
• Neutropenia (zidovudine-related)
• Lactic acidosis (rare but serious)
• Hepatomegaly with steatosis (rare)
• Myopathy (zidovudine-related)
• Pancreatitis (lamivudine-related, rare)

Safety Measures

• Alcohol - Avoid excessive alcohol consumption as it can exacerbate liver toxicity, a potential side effect of NRTIs, and worsen pancreatitis risk.
• Pregnancy - Zidovudine is commonly used in pregnancy to prevent mother-to-child transmission. Lamivudine is also generally considered safe. Discuss risks and benefits with a physician.
• Breastfeeding - Breastfeeding is generally not recommended for HIV-positive mothers to prevent postnatal transmission of HIV, regardless of antiretroviral therapy.
• Liver - Use with caution in patients with pre-existing liver disease or hepatitis B/C co-infection. Monitor liver function tests regularly due to risk of hepatotoxicity.
• Kidney - Dose adjustment is required for patients with renal impairment due to renal excretion of both lamivudine and zidovudine.
• Lung - No specific contraindications related to lung conditions, but patients with HIV are at higher risk for various lung infections, which should be managed appropriately.

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