Propecia

What is Propecia?

Propecia is a prescription-only hair treatment for men containing finasteride 1 mg. It targets the hormonal cause of male pattern hair loss by lowering DHT levels in the scalp. This helps prevent further thinning and promotes healthier, stronger hair.

Because Propecia for hair loss treats the underlying hormonal mechanism, it is considered one of the most effective long-term therapies for male pattern baldness.

Propecia in focus

Dosage	One Propecia tablet (1 mg) once daily
Dosing	At the same time each day
Onset of action	Improvements usually appear after 3–6 months Full results by 12 months
Condition	Works only when taken continuously
Target population	Men with male pattern hair loss. Not suitable for women
Taking with food	With or without food

How does Propecia work?

Male pattern hair loss is driven by DHT (dihydrotestosterone), a derivative of testosterone that causes hair follicles to shrink over time.

Propecia (finasteride 1 mg) works by blocking the enzyme 5-alpha-reductase, which converts testosterone into DHT. 

Lower DHT levels result in such benefits of Propecia:

• reduced shedding within 3 months;
• visible thickening within 6 months;
• healthier, stronger hair;
• long-term stabilisation of hair loss

Studies show that up to 90% of men maintain or improve hair density while taking finasteride. This explains why Propecia hair loss treatment is widely considered a reliable, long-term hair loss cure for men.

Propecia vs Finasteride – what is the difference?

• Propecia is the original brand-name version made by MSD. Since 2021, it has been owned by Organon, a subsidiary of MSD.
• Finasteride is the generic version, containing the same active ingredient, the same 1 mg dose, and the same effectiveness. It is manufactured by various pharmaceutical companies

The main difference is the cost of Propecia: generics are usually cheaper.

Some men prefer Propecia pills for brand reassurance; others choose finasteride to reduce expenses.

How to buy Propecia in the UK?

You can buy Propecia in the UK only with a valid prescription. This applies to purchases in the traditional pharmacies and to buying Propecia online. 

To buy Propecia online safely:

• complete an online consultation;
• order Propecia online in the UK from a reputable provider.

Offers that sell Propecia online without a prescription should be avoided.

Money matters:

The price of Propecia varies depending on the supplier and the size of the pack.

Generic finasteride can be considered if you would like to save on the Propecia cost.

How to take Propecia?

Standard dose: One Propecia tablet (1 mg) daily

How to take:

• Swallow whole with water
• Can be taken with or without food
• Take at the same time each day
• Do not double the dose if you forget a tablet

Because Propecia works gradually, consistent daily use is essential. Stopping treatment will reverse the benefits of Propecia within several months.

Who is Propecia not suitable for?

Propecia is not indicated for:

• women (especially pregnant women)
• men with certain prostate conditions
• men planning fatherhood soon (consult doctor)
• those allergic to finasteride or tablet ingredients
• men with significant liver disease — medical evaluation is recommended before starting treatment

Propecia side effects

Common Propecia side effects reported: 

• reduced libido
• difficulty achieving an erection
• lower ejaculate volume

These sexual side effects of Propecia are usually mild and reversible, but persistent symptoms should be reviewed by a clinician.

Less common:

• breast tenderness
• testicular discomfort
• mood changes
• temporary reduction in sperm quality (usually reversible after stopping)

A small number of men report mood alterations, including low mood or anxiety. Inform your doctor immediately if you notice any psychological changes.

Rare:

• persistent sexual side effects
• allergic reactions
• breast tissue changes (requires immediate review)

Most men tolerate Propecia without significant issues. 

Taking Propecia with other medications

Propecia generally has few interactions, but some medicines require caution:

• Other hormone-related treatments (e.g., testosterone therapy)
• Some antidepressants (possible impact on libido or mood)
• Alpha-blockers used for prostate symptoms or high blood pressure
• Medicines that may affect liver function, as finasteride is metabolised in the liver
• Any medication affecting hormonal balance

Special notes:

• Propecia does not interact with alcohol, though moderation is recommended for overall health.
• Do not combine Propecia with finasteride 5 mg (for enlarged prostate).

If you are unsure whether your current medicines are compatible, seek medical advice before taking Propecia tablets.

Further information

Package leaflet for Propecia for download.