Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Vemlidy (tenofovir alafenamide) and Viread (tenofovir disoproxil fumarate) are both antiretroviral medications used to treat hepatitis B virus (HBV) but there are some key differences. Viread is also approved to treat human immunodeficiency virus (HIV), while Vemlidy is not. Vemlidy is designed to work specifically in the liver, which results in less tenofovir in the bloodstream and makes it less harmful to your kidneys and bones compared to Viread. Viread is available in both tablet and powder forms, and it has a generic version, making it a more affordable option. On the other hand, Vemlidy is only available as a brand-name medication. Both medications are taken once daily, but Vemlidy must be taken with food. Common side effects for Vemlidy include headache, stomach pain, and cough, while Viread can cause higher cholesterol levels, rash, and diarrhea.
Vemlidy (tenofovir alafenamide), also known as TAF, is a first-choice medication for treating hepatitis B virus (HBV) for adults and children ages 6 years and older weighing at least 55 lbs. Tenofovir alafenamide is also found in combination with other antiretrovirals in medications such as Biktarvy to treat human immunodeficiency virus (HIV). Vemlidy (tenofovir alafenamide) is taken by mouth, typically once daily. Some of the more common side effects of Vemlidy (tenofovir alafenamide) include headache, stomach pain, and cough.
Summary for Antiretroviral (ARV)
Prescription only
Tenofovir disoproxil fumarate (Viread), also known as TDF, is a first-choice medication that's used as part of an antiretroviral (ARV) regimen for treating human immunodeficiency virus (HIV) infections. It's also a preferred medication used for treating hepatitis B virus (HBV). Tenofovir disoproxil fumarate, the active ingredient in Viread, is also found in Truvada, a combination medication commonly used for HIV PrEP. Tenofovir disoproxil fumarate (Viread) is available as both an oral tablet and a powder that's mixed with soft food. Common side effects include rash, diarrhea, and headache.
Indications of Vemlidy vs. Viread
Indications for
•Hepatitis B virus (HBV) in people ages 6 years and older weighing at least 55 lbs
Indications for
•Treatment of HIV infection - people ages 2 years and older
•Treatment of chronic (long-term) hepatitis B - Brand Viread for people ages 2 years and older; generic for people ages 12 years and older