In short

  • Propecia contains the active ingredient Finasteride.
  • Finasteride is used for the treatment of hair loss in men, but in higher doses, it is also used to treat enlarged prostate.
  • Reports suggest that Propecia can temporarily reduce both fertility and libido and it can cause erectile dysfunction.

Propecia contains the active ingredient Finasteride. Finasteride is used for the treatment of hair loss in men, but in higher doses, it is also used to treat enlarged prostate.

Reports suggest that Propecia can temporarily reduce both fertility and libido and it can cause erectile dysfunction. These side effects have not yet been formally studied and confirmed, however there are enough reports to suggest that Propecia may cause these conditions in less than 2% of people. In addition, it is thought that these side effects can continue for a short while after you stop taking Propecia, although they should eventually resolve.

Propecia affects fertility by reducing your sperm count and quality. So if you are trying to conceive, you should avoid taking Propecia during this time. It is recommended that you stop taking Propecia at least one week before you are trying to conceive, although if you have experienced these side effects, it may take a little longer for your fertility to return to normal.

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Ian Coakley, Content Writer

Content Writer

Ian is Simple Online Pharmacy’s Content Writer; he joined the team in 2021. He has had a varied career path, starting as a science communicator and freelance editor and writer. While Ian has been published in some independent outfits, Simple Online Pharmacy marks his first foray into writing for a corporate entity.

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Medically reviewed by

Karim Nassar, Co-Founder, Pharmacist & Author

Karim Nassar

Co-Founder, Pharmacist & Author

Karim is a registered pharmacist with the General Pharmaceutical Council (GPhC) and was a founding member of Simple Online Healthcare in 2015. With a Master of Pharmacy degree from Strathclyde University, Karim brings a strong foundation in pharmaceutical care and a passion for leveraging digital solutions to improve patient access to healthcare.

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