Tenvir

Tenvir is an antiviral medication containing Tenofovir Disoproxil Fumarate. It belongs to a class of drugs known as Nucleoside Reverse Transcriptase Inhibitors (NRTIs) and is used to manage HIV-1 and chronic Hepatitis B infections by preventing viral replication.

Dosage by Body Weight

The standard adult dosage is 300 mg taken orally once daily, with or without food. Pediatric dosage must be carefully calculated by a healthcare professional based on body weight and age.

  1. Body Weight
    Below 5 kg
    Dose
    Not recommended
    Frequency
    N/A
    Tracking Notes
    Safety and effectiveness have not been established in infants in this weight range.
  2. Body Weight
    5-7 kg
    Dose
    Not recommended
    Frequency
    N/A
    Tracking Notes
    Safety and effectiveness have not been established in patients in this weight range.
  3. Body Weight
    8-10 kg
    Dose
    Not routine
    Frequency
    Once daily if prescribed
    Tracking Notes
    Only under strict specialist supervision using pediatric oral powder formulations if approved.
  4. Body Weight
    11-15 kg
    Dose
    8 mg/kg (using oral powder) or low-strength tablet as prescribed
    Frequency
    Once daily
    Tracking Notes
    Requires specialized pediatric formulations. Standard 300 mg adult tablets must not be used.
  5. Body Weight
    16-20 kg
    Dose
    150 mg
    Frequency
    Once daily
    Tracking Notes
    Approved for pediatric patients weighing 17 kg to less than 22 kg using pediatric-strength tablets.

Formulation

Tablet

Purpose

Treatment of HIV-1 infection in combination with other antiretroviral agents, and the treatment of chronic Hepatitis B Virus (HBV) infection.

Generic Name

Tenofovir disoproxil fumarate

Scheduled Drug

Yes. This medicine should be supplied or used only according to applicable prescription and regulatory requirements.

Alternatives

Disclaimer: This information is for educational purposes only. WHO references and weight bands are simplified for tracking and must not replace medical advice. Always consult with a healthcare professional before starting or changing any medication.