Lamivudine + Zidovudine – Generic Drug Info

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Lamivudine + Zidovudine

Drugs for HIV / Anti-retroviral drugs

Generic drug information & available brands

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AI Summary Generated by AI for informational purposes only

This medicine combines two drugs to treat HIV infection. It helps control the virus and prevent it from multiplying. It should be used during pregnancy only if the benefit justifies the risk, and it is not recommended during breastfeeding.

Indications

Lamivudine and zidovudine tablets, a combination of 2 nucleoside analogue reverse transcriptase inhibitors, are indicated in combination with other antiretroviral agents for the treatment of HIV-1 infection

Pharmacology

Lamivudine and Zidovudine are synthetic nucleoside analogues with activity against human immunodeficiency virus (HIV).

Lamivudine: Intracellularly, Lamivudine is phosphorylated to its active 5’-triphosphate metabolite, Lamivudine triphosphate (L-TP). The principal mode of action of L-TP is inhibition of reverse transcription (RT) via DNA chain termination after incorporation of the nucleoside analogue. Following oral administration, Lamivudine is rapidly absorbed and extensively distributed. Binding to plasma protein is low.

Zidovudine: Intracellularly, Zidovudine is phosphorylated to its active 5’-triphosphate metabolite, Zidovudine triphosphate (ZDV-TP). The principal mode of action of ZDV-TP is inhibition of RT via DNA chain termination after incorporation of the nucleoside analogue. Following oral administration, Zidovudine is rapidly absorbed and extensively distributed. Binding to plasma protein is low. Zidovudine is eliminated primarily by hepatic metabolism.

Dosage & Administration

Important:
Do not take any medication without a doctor's prescription. Self-medication can be dangerous.

Recommended Dosage for Adults and Adolescents: The recommended dosage of lamivudine and zidovudine tablets 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.

Recommended Dosage for Pediatric Patients: The recommended dosage of 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 on an empty stomach. 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.

Not Recommended Due to Lack of Dosage Adjustment Because lamivudine and zidovudine tablets are a fixed-dose formulation and cannot be dose adjusted, lamivudine and zidovudine tablets are not recommended for:

Pediatric patients weighing less than 30 kg
Patients with creatinine clearance less than 50 mL per minute
Patients with hepatic impairment
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.

Interaction

Cross-resistance may develop when given with emtricitabine. Exacerbation of anaemia with concomitant use of zidovudine with ribavirin. Increased adverse effects to zidovudine with nephrotoxic or myelosuppressive drugs (e.g. systemic pentamide, dapsone, pyrimethamine, co-trimoxazole, amphotericin, flucytosine, ganciclovir, interferon, vincristine, vinblastine, doxorubicin). Lamivudine and zalcitabine may inhibit the intracellular phosphorylation of one another. Antagonistic effect when zidovudine is used concomitantly with stavudine or doxorubicin.

Contraindications

This is contraindicated in patients with previously demonstrated clinically significant hypersensitivity to any of the components of the product. Reduction of doses of Lamivudine is recommended for patients with low body weight (less than 50 kg or 110 lb); therefore, patients with low body weight should not receive Lamivudine & Zidovudine.

Side Effects

Side effects of this medicine-

More common: Chills, fever, pale skin; sore throat; unusual tiredness or weakness, headache
Less common: Abdominal pain, burning, tingling, numbness, or pain in the hands, arms, feet, or legs, muscle tenderness and weakness, nausea, skin rash, vomiting, yellow eyes or skin. Coughing, decreased appetite, diarrhea, dizziness and trouble in sleeping may occurs

Pregnancy & Lactation

Pregnancy Category C. There arc no adequate and well controlled studies of this drug in pregnant women. This drug should be used during pregnancy only if the potential benefits outweigh the risks. The Centers for Disease Control and Prevention recommend that HIV-infected mothers should not breast-feed their infants to avoid risking postnatal transmission of HIV. Because of the potential for HIV transmission and the potential for serious adverse effects in nursing infants, mothers should be instructed not to breast feed if they are receiving efavirenz.

Precautions & Warnings

Patients with HIV and Hepatitis B virus Coinfection: Safety and efficacy of Lamivudine have not been established for treatment of chronic hepatitis B in patients dually infected with HIV and HBV. Emergence of hepatitis B virus variants associated with resistance to Lamivudine has also been reported in HIV-infected patients who have received Lamivuuine-containing antiretroviral regimens in the presence of concurrent infection with Hepatitis B virus. Post-treatment exacerbations of hepatitis have also been reported.

Patients with Impaired Renal Function: Reduction of the dosages of Lamivudine and Zidovudine is recommended for patients with impaired renal function. Patients with creatinine clearance <50 ml/min should not receive this combination tablet.

Fat Redistribution: Redistribution/accumulation of body fat including central obesity, dorsocervical fat enlargement (buffalo hump), peripheral wasting, facial wasting, breast
enlargement, and cushingoid appearance have been observed in patients receiving antiretroviral therapy.

Storage Conditions

Stored at a cool and dry place, protected from light and moisture. Keep the medicine out of the reach of children.

The information provided on this page is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before starting, stopping, or changing any medication. All brands listed might have copyright or trademark of their respective owners. Listed information may not be up-to-date or accurate. We do not guarantee the availability, quality, price or safety of any medication. Use at your own risk.

Available Brands

2 found

Brand	Strength	Type	৳
Avudin Square Pharmaceuticals PLC	150 mg+300 mg	Tablet	45.00
Diavix Beximco Pharmaceuticals Ltd.	150 mg+300 mg	Tablet	45.00

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