Famvir Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Less Severe expression

  • Diarrhea
  • Feel Like Throwing Up
  • Head Pain

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • Decreased Neutrophils A Type Of White Blood Cell

If experienced, these tend to have a Less Severe expression

  • Dizzy
  • Gas
  • Itching
  • Low Energy
  • Numbness And Tingling
  • Painful Periods
  • Throwing Up

RARE side effects


If experienced, these tend to have a Severe expression

  • Abnormal Liver Function Tests
  • Allergic Reaction Causing Inflammation Of Blood Vessels
  • Confused
  • Decreased Blood Platelets
  • Decreased White Blood Cells
  • Erythema Multiforme
  • Giant Hives
  • Hallucination
  • Life Threatening Allergic Reaction
  • Rash
  • Seizures
  • Stevens-Johnson Syndrome
  • Toxic Epidermal Necrolysis
  • Yellowing Of Skin Or Eyes From Bile Flow Problems

If experienced, these tend to have a Less Severe expression

  • Drowsiness
  • Heart Throbbing Or Pounding
  • Hives
  • Migraine Headache

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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.