Finasteride (Proscar& Propecia)

Health Canada InfoWatch:

New information regarding the risk of muscle-related disorders has been added to the Post-Market Adverse Drug Reactions and Consumer Information sections of the Canadian product monographs for Proscar and Propecia.

Key messages for healthcare professionals:

  • Rare cases of muscle-related disorders, such as rhabdomyolysis, myopathy, myalgia, myasthenia, and creatine kinase elevation, have been reported in patients treated with finasteride.
  • In some cases, these disorders were found to be reversible with discontinuation of finasteride therapy.