Compare Ziagen vs. Videx

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

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Ziagen (abacavir)

Prescription only

Videx (didanosine)

Prescription only
Works with other medicines to treat HIV infection.

Ziagen (abacavir) is a first-choice medication that is used with others to treat HIV. It's important that your doctor test you for allergic reactions to Ziagen (abacavir) before starting the medication.

Works with other medicines to treat HIV infection.

Videx (didanosine) is not a first-choice treatment for HIV because there are newer medications that work well and are easier to take. However, Videx (didanosine) can be an option if other HIV medications haven't worked for you.

Upsides
  • Ziagen (abacavir) is found in many other combination tablets.
  • Ziagen (abacavir) has few drug interactions.
  • People whose kidneys are not working as well can still take Ziagen (abacavir) without having to change its dose.
  • Kids 3 months and older can use Ziagen (abacavir).
  • Videx (didanosine) is available in pill or liquid form.
  • Videx (didanosine) can be used in children 2 weeks of age and older.
  • Videx (didanosine) can be taken either once or twice daily.
Downsides
  • Ziagen (abacavir) can increase your risk of heart attack.
  • This is not a great medication to take if you have liver problems.
  • Severe allergic reactions have happened in some patients taking Ziagen (abacavir). Your doctor will test you for any possible risk of reaction before starting Ziagen (abacavir).
  • Videx (didanosine) cannot be taken by itself. It must be used with other HIV medications to treat HIV.
  • People commonly experience side effects such as diarrhea, nerve pain, and nausea when taking Videx (didanosine).
  • Videx (didanosine) should be used with caution if you have liver or kidney issues.
  • Videx (didanosine) shouldn't be taken with allopurinol or ribavirin. If you are taking these medicines, let your doctor know.
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Used for
Dosage forms
  • Pill
  • Liquid
  • Delayed release Pill
  • Liquid
Price
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Reviews
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Side effects
21possible side effects
  • Nausea
    19%
  • Headache
    13%
  • Fatigue and discomfort
    12%
  • Dreams/sleep disorders
    10%
  • Nausea and vomiting
    10%
  • Severe allergic reactions
    9%
  • Fever and/or chills
    9%
  • Headaches/migraine
    7%
  • Diarrhea
    7%
  • Skin rashes
    7%
  • Rashes
    6%
  • Stomach pain
    6%
  • Depression
    6%
  • Dizziness
    6%
  • Muscle and joint pain
    6%
  • Ear/nose/throat infections
    5%
  • Viral respiratory infections
    5%
  • Anxiety
    5%
  • Bronchitis
    4%
  • Pneumonia
    4%
  • Vomiting
    2%
See more detailed side effects
6possible side effects
  • Diarrhea
    56%
  • Nerve pain
    25%
  • Nausea
    24%
  • Headache
    22%
  • Rash
    14%
  • Vomiting
    14%
See more detailed side effects
Risks and risk factors
  • Severe allergic reactions
    • Positive genetic test (HLA B5701)
  • Lactic acidosis & severe liver damage
    • Obesity
    • Women
    • History of liver problems
  • Immune system reactivation
  • Fat redistribution
  • Heart attack
    • High blood pressure
    • High cholesterol
    • Diabetes
See more detailed risks and warnings
  • Pancreatitis
    • History of pancreatic issues
    • Alcohol consumption
    • Concomitant use with Zerit (stavudine)
    • Kidney problems
  • Lactic acidosis & severe liver damage
  • Nerve pain
    • Advanced HIV disease
    • History of peripheral neuropathy
    • Taking other medications that also cause peripheral neuropathy
  • Retinal changes
  • Fat redistribution
    • HIV treatment
  • Immune reconstitution syndrome
    • HIV
    • Exposure to other infections
    • Start of a new HIV medication
    • Change in HIV therapy
See more detailed risks and warnings