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Abacavir

Abacavir Side Effects

Hope Chang, PharmD, AAHIVPMichelle Nguyen, PharmD
Reviewed by Hope Chang, PharmD, AAHIVP, Michelle Nguyen, PharmD
Last reviewed on March 30, 2021

The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.

Common Side Effects

  • Headache (7%)
  • Nausea (7%)
  • Fatigue/tireness (7%)
  • Diarrhea (7%)
  • Rash (6%)
  • Stomach pain (6%)
  • Dizziness (6%)
  • Muscle Pain (6%)

Less Common Side Effects

  • Cough
  • Vomiting

Abacavir serious side effects

Contact your healthcare provider immediately if you experience any of the following.

Symptoms from 2 or more of the following groups:

  1. Fever
  2. Rash
  3. Nausea, vomiting, diarrhea, stomach pain
  4. Tiredness, achiness, feeling ill
  5. Shortness of breath, cough, sore throat
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Source: FDA

The following Abacavir side effects have also been reported

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Less common

Abdominal or stomach pain

cough

diarrhea

difficult or labored breathing

fever

headache

joint or muscle pain

nausea

numbness or tingling of the hands, feet, or face

redness and soreness of the eyes

skin rash

sore throat

sores in the mouth

swelling of the feet or lower legs

unusual feeling of discomfort or illness

unusual tiredness

vomiting

Rare

Abdominal or stomach swelling

decreased appetite

fast, shallow breathing

sleepiness

Incidence not known

Blistering, peeling, or loosening of the skin

chest pain or discomfort

chills

dark urine

itching

light-colored stools

pain or discomfort in the arms, jaw, back, or neck

red, irritated eyes

red skin lesions, often with a purple center

sores, ulcers, or white spots in the mouth or on the lips

sweating

unusual weakness

upper right abdominal or stomach pain

yellow eyes and skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

Headache

Less common

Trouble sleeping

Incidence not known

Breast enlargement

buffalo hump

central obesity

facial wasting

gaining weight around your neck, upper back, breast, face, or waist

peripheral wasting

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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Why trust our experts?

Hope Chang is a freelance writer and content reviewer for GoodRx. She attended Howard University College of Pharmacy in Washington, D.C. and completed post-graduate residency training at the University of California, Davis Medical Center.
Michelle Nguyen, PharmD, has been a clinical pharmacist for 6 years (and counting). She has a diverse skill set within managed care pharmacy, specifically in the settings of a medical group, pharmacy benefit manager (PBM), and health plan.

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