Compare Vemlidy vs. Pegasys

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Treats hepatitis B virus (HBV) infections.

Vemlidy (tenofovir alafenamide) decreases liver damage from hepatitis B virus (HBV) and has minimal side effects, but doesn't cure the infection.

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  • Vemlidy (tenofovir alafenamide) is a first-choice medicine to treat hepatitis B.
  • Conveniently taken once daily.
  • Compared to Truvada and Viread (tenofovir disoproxil fumarate), Vemlidy (tenofovir alafenamide) is safer for your kidneys and bones.
No information currently available
  • Might not be the best choice for people with severe kidney damage.
  • There's not enough evidence to show that Vemlidy (tenofovir alafenamide) can be used safely in children ages 18 or younger.
No information currently available
Used for
  • Hepatitis B treatment
  • Active type B viral hepatitis
  • Chronic Hepatitis C
  • Chronic
  • In patients with compensated liver disease - HIV infection Hepatitis C
  • Chronic
  • Interferon alfa-naive
  • With compensated liver disease
  • Hepatitis C
  • Chronic
  • Interferon alfa/ribavirin nonresponders
Dosage forms
  • Pill
  • Injection
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Side effects
6possible side effects
  • Headache
  • Stomach pain
  • Tiredness
  • Cough
  • Nausea
  • Back pain
See more detailed side effects
The Pegasys (Peginterferon Alfa-2A) FDA package insert doesn’t have numbers about how common side effects are.
Risks and risk factors
  • Worsening of hepatitis B infection
    • Stopping Vemlidy (tenofovir alafenamide)
  • Hepatitis B and HIV co-infection
    • HIV infection
  • Kidney damage
    • Poor kidney function
    • Taking other medicines that can damage the kidneys
  • Buildup of acid in the blood and swollen, fatty liver
  • Lowered bone mineral density
    • Long-term use of Vemlidy (tenofovir alafenamide)
    • Use of other medications that result in loss of electrolytes or minerals
See more detailed risks and warnings
No information currently available