Compare Viread vs. Epzicom

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

Works with other medicines to treat HIV infection. Also treats Hepatitis B Virus.

Viread (tenofovir) is a first-line choice to be used in combination with other medications to treat HIV. Viread (tenofovir) is also a first-line choice in treating HBV.

Works with other medicines to treat HIV infection.

Epzicom (abacavir / lamivudine) contains two medicines in one tablet, used with other medicines, to treat HIV infection. Your doctor does need to test you before you start it to make sure you don't get an allergic reaction.

  • Can be used with other medications to prevent HIV infection after an exposure.
  • Taken only once daily, with or without food.
  • There are newer formulations of Viread (tenofovir) available that are safer on your kidneys.
  • If tablets are hard for you to swallow, Viread (tenofovir) is available in a powder that's mixed with soft foods.
  • Epzicom (abacavir / lamivudine) contains two first choice medicines used in combination with other medicines to treat HIV infections.
  • Compared to other HIV medicines, Epzicom (abacavir / lamivudine) does not have as many drug interactions with other medicines.
  • Can be taken with or without food.
  • Epzicom (abacavir / lamivudine) can be taken by children weighng at least 55lbs (25kg) or more.
  • Viread (tenofovir) can't be used on its own to treat HIV infection.
  • Not recommended for patients with kidney damage.
  • Can weaken your bones.
  • Might worsen hepatitis B infections if you suddenly stop taking it.
  • Epzicom (abacavir / lamivudine) isn't recommended if you'll need to adjust the dose of medications due to problems like kidney and/or liver damage.
  • Epzicom (abacavir / lamivudine) can increase your risk of heart attack, especially if you have other heart-related issues such as high blood pressure, high cholesterol, diabetes, or if you smoke.
  • Severe allergic reactions have happened in some patients taking Epzicom (abacavir / lamivudine). Your doctor will test you for any possible risk of reaction before starting Epzicom (abacavir / lamivudine).
Used for
Dosage forms
  • Pill
  • Powder
  • Pill
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Side effects
1possible side effects
  • Nausea
See more detailed side effects
13possible side effects
  • Severe allergic reaction
  • Insomnia
  • Depression/Depressed mood
  • Headache/Migraine
  • Fatigue/Malaise
  • Dizziness/Vertigo
  • Nausea
  • Diarrhea
  • Rash
  • Fever
  • Abdominal pain & inflammation
  • Abnormal dreams
  • Anxiety
See more detailed side effects
Risks and risk factors
  • Lactic acidosis | Enlarged, fatty liver
    • Liver disease
    • Women
    • Obesity
  • Cannot be used to treat Hepatitis B Virus (HBV)
    • Hepatitis B Virus infection
  • Mood and behavior changes
    • History of mental illness
  • Decreased bone mineral density
    • History of bone fractures
    • Osteoporosis
  • Kidney damage
    • History of kidney damage
    • Concurrent use of other drugs known to harm kidneys
  • Hypersensitivity (allergic) reactions
    • Prior severe allergic reaction to Viread (tenofovir) or any of its individual drug components.
See more detailed risks and warnings
  • Severe allergic reaction
    • Previous allergic reaction to Triumeq or abacavir
    • Presence of HLA-B*5701 gene
  • Lactic acidosis and Fatty liver
    • Liver disease
    • Women
    • Obesity
  • Acute exacerbation of hepatitis B virus (HBV)
    • Hepatitis B virus
  • Fat redistribution
    • HIV treatment
  • Immune reconstitution syndrome
    • HIV
    • Exposure to other infections
    • Start of a new HIV medication
    • Change in HIV therapy
  • Heart attack
    • History of coronary heart disease
    • High blood pressure
    • Dyslipidemia
    • Diabetes mellitus
    • Smoking
See more detailed risks and warnings