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Dutasteride 0.5mg Capsules
From: £17.49
Or £15.74 / month
Dutasteride 0.5mg capsules are a once-daily prescription capsule for male pattern hair loss. Dutasteride achieves approximately 90% DHT suppression — greater than Finasteride — making it a powerful option, particularly for men who have not responded adequately to Finasteride.
Available from PharmaBee via online consultation with a UK-registered hair loss specialist.
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Overview
Content Written by:
Hanifa Tai
Hanifa Tai
Role: Pharmacist & Content Writer
GPhC Number: 2074961
Content Published: 01/04/2026
Next Review: 01/04/2027
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Description
What is Dutasteride 0.5mg?
Dutasteride 0.5mg capsules are a prescription-only treatment for male pattern baldness. Dutasteride is also available as the branded Avodart — both contain the same active ingredient at the same dose and are clinically equivalent. It is licensed for benign prostatic hyperplasia (BPH) but widely used off-label by hair loss specialists.
How does it work?
Dutasteride inhibits both type I and type II 5-alpha reductase enzymes, which are responsible for converting testosterone into DHT. By suppressing approximately 90% of DHT (compared to approximately 70% with Finasteride), it more powerfully reduces the hormone that causes follicle shrinkage and hair loss.
Dutasteride vs Finasteride
- Dutasteride inhibits both type I and type II 5-alpha reductase; Finasteride inhibits type II only
- Dutasteride achieves approximately 90% DHT suppression vs approximately 70% with Finasteride
- May produce greater hair loss benefit, particularly for those who have not responded to Finasteride
- Longer half-life — remains in the body longer after stopping treatment
How to take it
Take one capsule once daily, whole (do not crush or break), with or without food, at the same time each day.
How long does it take to work?
Most men notice stabilisation of hair loss within 3–6 months of daily use, with peak hair growth typically achieved at 2 years. Stopping treatment leads to a reversal of benefits within 9–12 months.
Who should not take Dutasteride?
- Women
- Anyone under 18
- People with liver problems
- People with urinary retention issues or prostate issues
- Anyone allergic to Dutasteride, soya, peanuts, or its components
FAQ
Q: Is Dutasteride more effective than Finasteride?
A: Studies suggest Dutasteride can be more effective for some men, particularly those who have not responded to Finasteride, due to its greater DHT suppression (90% vs 70%) and inhibition of both type I and type II 5-alpha reductase.
Q: Is Dutasteride licensed for hair loss?
A: Dutasteride is licensed for benign prostatic hyperplasia (BPH).It is used off-label — which is legal and supported by clinical evidence. Our team will assess your suitability.
Q: What is the difference between Dutasteride and Avodart?
A: They are clinically identical — same active ingredient, same dose. Avodart is the branded version. Some patients prefer the branded product for personal reasons.
Q: How long before I see results?
A: Most men notice stabilisation of hair loss within 3–6 months, with peak results typically at 2 years.
Q: What happens if I stop taking it?
A: Stopping treatment leads to increasing DHT levels and hair loss is likely to resume. Benefits typically reverse within 9–12 months of stopping.
Side Effects
Dutasteride capsules are usually safe and side effects are uncommon. Any side effects noticed will often resolve with time but should be discussed with the prescriber or your GP.
Important side effects to be aware of:
- Libido and erection dysfunction — Stop taking Dutasteride and speak to your GP if you notice new problems with sex drive or erections.
- Breast tissue changes — Report any nipple tenderness, lumps, or discharge to your GP.
- Very rare — Dutasteride may increase the risk of prostate cancer. Any new or unusual symptoms must be discussed with your GP.
Other possible side effects:
- Reduced libido
- Erectile dysfunction
- Ejaculation problems
- Breast tenderness or enlargement
- Dizziness (uncommon)
- Depression or mood changes (rare)
Report any side effects via the MHRA Yellow Card Scheme: www.mhra.gov.uk/yellowcard
