Medical Hair Loss Treatment

Last clinically reviewed: August 2026

Medical therapy is the only approach with strong evidence for slowing the genetic process that causes male pattern hair loss.

Everything else in hair restoration manages the consequences of hair loss. Medical treatment addresses the mechanism. That is why it forms the foundation of most long-term plans, whether or not surgery is part of the picture.

How the main options work

Two approaches dominate, and they work in completely different ways, which is why they are often used together.

Side effects and monitoring

Any medication has a risk profile, and you deserve a balanced account rather than either dismissal or scaremongering. Reported side effects for DHT-blocking therapy include sexual side effects in a small minority of men, and there is ongoing debate about persistence in a very small subgroup.

Topical vasodilator therapy commonly causes scalp irritation or dryness, and produces a temporary increase in shedding in the first weeks as follicles synchronise into a new growth cycle.

• Full medical history and discussion of risks before any prescription
• Baseline photography so change can be measured objectively
• Review at three months, then twelve months
• Clear guidance on what to report and when to stop
• Alternative options discussed if side effects occur

What to expect

1. Months 1–3Possible temporary increase in shedding. This is expected and not a sign of failure.
2. Months 3–6Shedding typically reduces. Hair may feel thicker to the touch before it looks different.
3. Months 6–12Visible stabilisation, sometimes with partial regrowth in areas of miniaturisation.
4. Month 12Formal review against baseline photographs to decide whether to continue.

Clinically reviewed by Dr. Ducu Botoaca Aesthetic & Hair Transplant Surgeon and founder of The Men Clinics, Soho, London. This page is general information and is not a substitute for a personal medical assessment.