Finasteride

Brand Names of Finasteride: Propecia, Proscar

What is Finasteride?

  • Finasteride is a medication used for managing hair loss (androgenetic alopecia) and treating symptoms of an enlarged prostate, also called benign prostatic hyperplasia (BPH).

How Does it Work and Why is it Important to Take?

  • Finasteride works by blocking the activity of a hormone called dihydrotestosterone (DHT), which is involved in both hair loss and the enlargement of the prostate.

  • Taking this medication is important to slow down hair loss and alleviate symptoms associated with an enlarged prostate.

The Dose of The Medication

  • For hair loss, the usual dose is 1mg once a day.

  • For BPH, the usual dose is 5mg once a day.

How and When to Take It

  • Finasteride can be taken anytime during the day; take it at the same time to get into a routine.

What to Expect

  • Results may not be immediate, and it may take several months before you notice improvements.

  • For hair loss, expect slowed hair thinning and potential regrowth.

  • For BPH, expect a reduction in symptoms like improved urine flow.

What to Do if You Miss a Dose

  • If you miss a dose and it is within 6 hours of when you usually take it, then take Finasteride as soon as you remember.

  • If it is more than 6 hours from your usual dose, then skip the dose and take the next one when you usually take it. Never double up on doses to make up for a missed one.

Possible Side Effects

  • Problems having an erection

  • Less interest in sex

  • Little or no semen when you ejaculate

Management of Side Effects

  • Some side effects improve as your body adjusts.

  • If you experience severe, persistent, or bothersome side effects, contact your GP clinician, local pharmacy, or NHS 111.

Common Interactions

  • Inform your clinician about all medications you are taking, including over-the-counter and herbal supplements.

  • St John’s Wort a herbal remedy that is used for depression, this may affect the way finasteride works

Special Warnings

  • Pregnant women or those planning to become pregnant should avoid handling crushed or broken tablets.

  • Speak to your GP clinician or NHS 111 if you develop a low mood or notice any lumps, soreness, swelling, or discharge coming from your nipples

Monitoring Your Progress

  • Regular check-ups with your healthcare provider are essential to monitor the progress of hair growth or BPH symptoms and assess any potential side effects.

Where to Find More Information and Who to Contact

  • Refer to the patient information leaflet and the NHS website for more details.

  • If you have questions or experience unusual symptoms, contact your GP clinician, local pharmacy, or NHS 111.