Product image of Nevirapine Viatris (Nevirapine) supplied by GNH India

Nevirapine Viatris

Active Ingredient:
Nevirapine
Origin:
EU

Nevirapine Viatris (Nevirapine)

Nevirapine, the active ingredient in Nevirapine Viatris, is a non-nucleoside reverse transcriptase inhibitor presented as an oral dosage form for oral use. It is indicated for the treatment of HIV-1 infection in adults and children, and may be used as part of combination antiretroviral therapy.

GNH India supplies Nevirapine Viatris as a licensed, GDP-compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to stringent quality standards and provides regulatory‑compliant documentation for global distribution.

Manufacturer / TM Owner

Viatris Limited

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Indications & Clinical Uses

Nevirapine is used in antiretroviral regimens that target HIV-1 replication.

  • HIV-1 infection: reduces viral load and helps restore immune function when combined with other antiretrovirals.
  • Prevention of mother-to-child transmission of HIV-1: included in maternal regimens to lower transmission risk during pregnancy and delivery.
  • Treatment-experienced HIV-1 patients: employed as part of salvage therapy when resistance to other agents has developed.

How It Works

  • Nevirapine binds to a hydrophobic pocket adjacent to the active site of HIV-1 reverse transcriptase. This binding induces a conformational change that blocks the enzyme’s ability to transcribe viral RNA into DNA, thereby halting the synthesis of proviral DNA and preventing viral replication. The inhibition is non-competitive and persists as long as therapeutic concentrations are maintained.

Side Effects

Nevirapine may cause a range of adverse reactions, which are categorized by frequency and severity.

Common Side Effects

  • Rash: mild to moderate skin eruptions, often pruritic.
  • Nausea: transient gastrointestinal discomfort.
  • Headache: mild to moderate intensity.
  • Fatigue: general feeling of tiredness.

Serious or Rare Side Effects

  • Hepatotoxicity: severe liver injury, potentially leading to jaundice or hepatic failure.
  • Stevens-Johnson syndrome: severe mucocutaneous reaction requiring immediate medical attention.
  • Severe hypersensitivity reactions: including anaphylaxis or drug reaction with eosinophilia and systemic symptoms (DRESS).

Precautions & Warnings

When prescribing Nevirapine, clinicians should observe several safety precautions to minimize risk.

  • Baseline liver assessment: obtain hepatic function tests before initiation and monitor regularly.
  • Rash monitoring: discontinue immediately if a severe or widespread rash develops.
  • Pregnancy considerations: avoid use during the first trimester due to increased risk of hepatotoxicity.
  • Drug-interaction review: assess concomitant medications that affect CYP3A4 metabolism.
  • Patient counseling: advise patients to report any signs of liver dysfunction or skin reactions promptly.
  • Store at room temperature: keep in the original container, protect from moisture and direct heat.

Avoid Interactions

Nevirapine interacts with several medicines through hepatic enzyme modulation and additive toxicities.

Major Interactions (Avoid)

  • Rifampicin: strong CYP3A4 inducer that markedly reduces nevirapine plasma levels, compromising efficacy.
  • Protease inhibitors boosted with ritonavir: potent CYP3A4 inhibitors that increase nevirapine concentrations, raising toxicity risk.
  • Co-administration with other NNRTIs: may lead to overlapping toxicity and unpredictable pharmacokinetics.

Moderate Interactions (Monitor Closely)

  • Warfarin: nevirapine can alter anticoagulant effect; monitor INR closely.
  • Methadone: may reduce methadone levels, requiring dose adjustment.
  • Hormonal contraceptives: nevirapine can decrease steroid levels; advise additional contraceptive measures.

Frequently Asked Questions

Nevirapine Viatris is prescribed as part of combination antiretroviral therapy for the treatment of HIV-1 infection. It is also used in regimens aimed at preventing mother-to-child transmission of HIV and may be included in salvage therapy for patients with resistance to other antiretroviral agents.

Nevirapine binds to a specific site on the HIV-1 reverse transcriptase enzyme, causing a conformational change that blocks the enzyme’s activity. This non‑competitive inhibition prevents the conversion of viral RNA into DNA, thereby halting viral replication and reducing the amount of virus in the bloodstream.

The exact dosing regimen for Nevirapine Viatris is determined by the prescribing clinician based on the patient’s age, weight, treatment history, and concomitant medications. Standard adult regimens typically start with a lead‑in dose before reaching the maintenance dose, but the prescriber will tailor the schedule to each individual case.

Nevirapine can be used during pregnancy, but caution is advised, especially in the first trimester due to a higher risk of hepatotoxicity. Breastfeeding while on nevirapine is generally considered acceptable, but the benefits and risks should be evaluated by the healthcare provider for each mother‑infant pair.

To place an order, submit an enquiry on the product page at gnhindia.com, specifying the required quantity of Nevirapine Viatris. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.

Nevirapine belongs to the non‑nucleoside reverse transcriptase inhibitor (NNRTI) class, offering a once‑ or twice‑daily oral dosing schedule. Compared with protease inhibitors, it generally has fewer drug‑food interactions but carries a higher risk of rash and liver toxicity. Its efficacy is comparable when used in appropriate combination regimens.

Nevirapine Viatris should be stored at room temperature, below 25 °C, in its original packaging. Keep the product away from moisture, direct sunlight and excessive heat to maintain stability and potency throughout its shelf life.

Nevirapine Viatris is taken orally, usually with food or a light snack to reduce gastrointestinal discomfort. The tablets are swallowed whole with a glass of water. Patients should follow the dosing schedule prescribed by their healthcare professional and not alter the regimen without medical advice.

The most serious adverse events include severe hepatotoxicity, which may present as jaundice, abdominal pain or elevated liver enzymes, and serious skin reactions such as Stevens‑Johnson syndrome or toxic epidermal necrolysis. Immediate medical attention is required if any signs of liver dysfunction or severe rash develop.

Nevirapine Viatris is contraindicated in patients with a known hypersensitivity to nevirapine or any component of the formulation. It should also be avoided in individuals with pre‑existing moderate to severe liver disease, a history of severe rash to NNRTIs, and in pregnant women during the first trimester unless the benefits outweigh the risks.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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