Antibiotics Home > More Information on Reactions to Biaxin

Biaxin Side Effects to Report

Some side effects with Biaxin should be reported immediately to your healthcare provider. These include but are not limited to:
  • Signs of liver damage, such as:
    • Yellowing of the whites of the eyes or skin (jaundice)
    • Upper-right abdominal (stomach) pain
    • Light-colored stools
    • Dark urine
  • Low blood sugar (hypoglycemia) in people with diabetes
  • Seizures
  • Hallucinations, anxiety, or any other unusual changes in thoughts or behavior
  • Watery or bloody diarrhea (which may occur long after you have stopped taking Biaxin)
  • Fainting
  • Heart palpitations or an irregular heart rhythm (arrhythmia)
  • Signs of an allergic reaction, such as:
    • An unexplained rash
    • Hives
    • Itching
    • Unexplained swelling (especially of the lips, mouth, or throat)
    • Wheezing or other breathing problems.

Other Possible Biaxin Side Effects

After medications are approved and are in use by the general public, healthcare providers may voluntarily report side effects. This information may point to possible side effects that were not seen in clinical trials. However, it is difficult (if not impossible) to tell how frequently such side effects occur, or even if they are actual side effects of the medication. These reported side effects are known as "postmarketing experience." Possible side effects of Biaxin reported in postmarketing experience include but are not limited to:
  • Thrush (a yeast infection of the mouth)
  • Canker sores
  • Loss of appetite
  • Tongue discoloration
  • Dizziness
  • Low blood platelets or low white blood cells
  • Tooth discoloration (which usually goes away with professional dental cleaning)
  • Hearing loss (which usually goes away once Biaxin is stopped)
  • Changes in the sense of smell
  • Ringing in the ears (tinnitus)
  • A spinning sensation (vertigo)
  • Nightmares
  • Intact tablets in the stool (this has only been reported with the long-acting Biaxin XL tablets).
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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