Finasteride Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

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If experienced, these tend to have a Less Severe expression i

  • altered interest in having sexual intercourse
  • problems with ejaculation
  • the inability to have an erection
  • breast pain

    • INFREQUENT side effects

    If experienced, these tend to have a Severe expression i

  • a hypersensitivity reaction to a drug

    • If experienced, these tend to have a Less Severe expression i

  • low blood pressure
  • fluid retention in the legs, feet, arms or hands
  • decreased amount of semen upon ejaculation

    • RARE side effects

    If experienced, these tend to have a Severe expression i

  • breast cancer in a male patient
  • suicidal behavior
  • suicidal thoughts
  • hives
  • a condition with muscle tissue breakdown called rhabdomyolysis
  • seizures
  • a type of allergic reaction called angioedema
  • thoughts of self harm

    • If experienced, these tend to have a Less Severe expression i

  • depression
  • low sperm count
  • orgasm problems
  • pain in the testicles
    • Full Drug Information

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    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, except 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.