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Side Effects

List finasteride side effects by likelihood and severity.

The following side effects are associated with finasteride:

Common side effects of finasteride:

  • Inability to have an ErectionLess Severe

Infrequent side effects of finasteride:

  • Allergic Reaction caused by a DrugSevere
  • Enlarged BreastsSevere
  • High-Grade Prostate CancerSevere
  • RashSevere
  • Abnormally Low Blood PressureLess Severe
  • Altered Interest in Having Sexual IntercourseLess Severe
  • Breast TendernessLess Severe
  • Decreased Amount of Semen Upon EjaculationLess Severe
  • Fluid Retention in the Legs, Feet, Arms or HandsLess Severe

Rare side effects of finasteride:

  • Breast Cancer in a Male PatientSevere
  • Giant HivesSevere
  • HivesSevere
  • ItchingSevere
  • DepressionLess Severe
  • Low Sperm CountLess Severe
  • Orgasm ProblemsLess Severe
  • Problem with EjaculationLess Severe
  • Testicular PainLess Severe

Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, expect as may be authorized by the applicable terms of use.

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.

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