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An Overview of Viread (Tenofovir)

August 23, 2013

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How should I take tenofovir disoproxil fumarate?

Tenofovir DF comes in the following forms and strengths:

  • 150-mg tablets (brand name: Viread).
  • 200-mg tablets (brand name: Viread).
  • 250-mg tablets (brand name: Viread).
  • 300-mg tablets (brand name: Viread).
  • 40-mg/1 g oral powder (brand name: Viread).

Take tenofovir DF according to your health care provider's instructions.


Tenofovir DF tablets should be swallowed whole and can be taken with or without food. People who are unable to swallow the tablets whole may take the oral powder. Use the provided dosing scoop to measure the oral powder. Mix the oral powder with soft foods that can be swallowed without chewing, such as applesauce, baby food, or yogurt. Take the dose of oral powder right after mixing it. Do not mix the oral powder with liquid.

Always take tenofovir DF in combination with other anti-HIV medicines.

If you take too much tenofovir DF, contact your local poison control center (1-800-222-1222) or go to the nearest hospital emergency room right away.

For more information on how to take tenofovir DF, see the FDA drug label from DailyMed. (DailyMed is a federal website that includes the most recent drug labels submitted to FDA.)

What should I do if I forget a dose?

Take the missed dose as soon as you remember it. But if it is almost time for your next dose, skip the missed dose and just take your next dose at the regular time. Do not take two doses at the same time to make up for a missed dose.

What side effects can tenofovir disoproxil fumarate cause?

Tenofovir DF can cause severe side effects. These include lactic acidosis (buildup of acid in your blood) and severe liver problems. (See the WARNING above.)

Other possible side effects of tenofovir DF include:

  • New or worsening kidney problems.
  • Bone problems, including bone pain, softening, or thinning (osteopenia), which may lead to fractures.
  • Changes in body fat (lipodystrophy).
  • Changes in the immune system (immune reconstitution inflammatory syndrome).

Tell your health care provider if you have any side effect that bothers you or that does not go away.

These are not all the possible side effects of tenofovir DF. Ask your health care provider or pharmacist for more information on possible side effects of tenofovir DF.

How should tenofovir disoproxil fumarate be stored?

  • Store tenofovir DF at 59°F to 86°F (15°C to 30°C).
  • Keep tenofovir DF in the original container.
  • Keep the original container tightly closed.
  • Safely throw away tenofovir DF that is no longer needed or expired (out of date).
  • Keep tenofovir DF and all medicines out of reach of children.

Where can I find more information about tenofovir disoproxil fumarate?

More information about tenofovir DF is available:

Manufacturer Information

Gilead Sciences

The above Patient Version drug summary is based on the following FDA label(s): Powder, tablet (coated).

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This article was provided by AIDSinfo. Visit the AIDSinfo website to find out more about their activities and publications.
See Also
More on HIV Medications
More on Viread (Tenofovir)