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Tenofovir Disoproxil Fumarate Oral powder

It is used with other medicines to treat hepatitis B virus and HIV

Generic Name: Viread

There is an FDA Alert for this drug. Click here to view it.

What is this medicine?

TENOFOVIR (te NOE fo veer) is an antiretroviral medicine. It is used with other medicines to treat hepatitis B virus and HIV. This medicine is not a cure for hepatitis B or HIV. It will not stop the spread of hepatitis B or HIV to others.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
  • bone problems
  • kidney disease
  • liver disease
  • an unusual or allergic reaction to tenofovir, other medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I use this medicine?

Take this medicine by mouth. Follow the directions on the prescription label. Use a specially marked scoop that comes with your medicine to measure each dose. Mix the dose in a small amount of soft food and take it right away. Take your medicine at regular intervals. Do not take your medicine more often than directed. For your treatment to work as well as possible, take each dose exactly as prescribed. Do not skip doses or stop your medicine even if you feel better. Skipping doses may make the HIV virus resistant to this medicine and other medicines. Do not stop taking except on your doctor's advice.

Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 2 years for selected conditions, precautions do apply.

Overdosage: If you think you've taken too much of this medicine contact a poison control center or emergency room at once.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What may interact with this medicine?

Do not take this medicine with any of the following medications:
  • adefovir
  • certain antiviral medicines for HIV or AIDS like emtricitabine; tenofovir or emtricitabine; rilpivirine; tenofovir or efavirenz; emtricitabine; tenofovir or cobicistat; elvitegravir; emtricitabine; tenofovir

This medicine may also interact with the following medications:

  • atazanavir
  • didanosine, ddI
  • lopinavir; ritonavir
  • medicines for viral infections like cidofovir, acyclovir, valacyclovir, ganciclovir, valganciclovir
  • saquinavir

What should I watch for while using this medicine?

Visit your doctor or health care professional for regular check ups. Discuss any new symptoms with your doctor. You will need to have important blood work done while on this medicine.

Hepatitis B and HIV are spread to others through sexual or blood contact. Talk to your doctor about how to stop the spread of hepatitis B and HIV.

If you have hepatitis B, talk to your doctor if you plan to stop this medicine. The symptoms of hepatitis B may get worse if you stop this medicine.

Using this medicine for a long time may increase your risk of low bone mass. Talk to your doctor about bone health.


Last Updated: April 16, 2013
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