How does minoxidil work for hair?

Minoxidil prolongs the anagen phase of the follicle and increases hair diameter. It is used topically or, under medical supervision, orally at low doses when topical is insufficient.

Oral or topical — what is the difference?

Topical is the standard in mild-to-moderate androgenetic alopecia. Low-dose oral (off-label) is an alternative when adherence to topical is poor or response is insufficient. Each has its own side-effect profile.

What are minoxidil's side effects?

Topical: scalp irritation, local hypertrichosis. Oral (low dose): fluid retention, mild palpitations, facial hypertrichosis. The doctor prescribes the form most appropriate for you.

Can it be combined with finasteride or dutasteride?

Yes — a frequent combination. Minoxidil stimulates the follicle and the 5-AR inhibitor blocks the hormonal cause. The doctor decides based on your history and the loss pattern.

Can I get a consultation for Minoxidil from Madrid?

Yes. Hi-Doctor runs 100 % online across the EU, so if you live in Madrid you can fill in the questionnaire and receive the medical review without travelling. The electronic prescription issued by the licensed doctor is valid in any EU pharmacy under Directive 2011/24/EU; in Spain it is dispensed directly from the prescription QR.

How does a doctor evaluate a hair-loss case in an online consultation?

Through the pattern of loss, how long it has been progressing, family history and current medication. In some cases we ask for scalp photos. The doctor proposes a tailored treatment plan and adjusts it to your tolerance.

What is the private electronic prescription and why is it valid across the EU?

The private electronic prescription (Receta Médica Privada Electrónica) is issued by a licensed doctor in Spain. It is a PDF carrying every field required by EU Directive 2011/24/EU (patient, prescriber with country of registration, active ingredient, dose), which makes it legally recognised across all 27 EU member states. In Spanish pharmacies it is dispensed from the QR; outside Spain, the pharmacist dispenses the locally marketed equivalent of the same active ingredient.

How does Hi-Doctor work step by step?

1) Fill in an online medical questionnaire in about 4 minutes. 2) An EU-licensed doctor reviews your case and replies in under 24 h through the private chat in your account. 3) If eligible, the doctor issues an electronic prescription. 4) You collect it at any EU pharmacy. The consultation costs €25 and, if the doctor decides it is not safe to prescribe, the full amount is refunded.

How much does it cost and what does the price include?

The medical consultation costs €25 and includes a licensed doctor's review of your case and, if approved, the electronic prescription. If the doctor decides the treatment is not appropriate, the €25 is refunded. The medication price is separate and paid at the pharmacy; it varies by country, pharmacy and product across the EU. Because your electronic prescription is valid at any EU pharmacy, you can compare and choose where to fill it.

Minoxidil · MadridPrescription only

Online medical consultation for Minoxidil in Madrid.

An EU-licensed doctor reviews your case and, if eligible, issues an electronic prescription valid in any pharmacy in Spain. Consultation €25, refunded if the doctor decides it is not safe to prescribe.

Topical or oral, depending on your case
Stimulates the follicle's growth phase
Combines well with finasteride or dutasteride

€25Refund if treatment not approved

Start consultation · €25 See how it works

Medication, if prescribed, is dispensed and paid for separately at a pharmacy.

Form5% topical solution or low-dose tablet

FrequencyDaily routine

ResultsFirst changes at months 2–4

StatusPrescription only

About

What is Minoxidil?

Active ingredient: Minoxidil · Dosages: 5% topical · 2.5–5 mg oral

Minoxidil prolongs the anagen (growth) phase of the hair follicle and increases hair diameter. Topical is the standard in mild-to-moderate androgenetic alopecia; low-dose oral — off-label, under medical supervision — is an alternative when adherence to topical is poor or the response is insufficient.

It's frequently combined with a 5-alpha-reductase inhibitor: minoxidil stimulates the follicle while finasteride or dutasteride blocks the hormonal cause. The doctor decides the form and the combination based on your history and pattern of loss.

How it works in the body

Minoxidil extends the follicle's growth phase and increases hair diameter, improving density where follicles are still active. Each form — topical or low-dose oral — has its own side-effect profile, which the doctor reviews with you.

How it helps

How it supports regrowth.

Stimulates the follicle

Prolongs the growth phase and thickens the hair shaft.

Two formats

Topical solution as the standard; low-dose oral when topical doesn't fit.

Pairs well

Often combined with finasteride or dutasteride to also block the hormonal cause.

What to expect

How to use it.

Topical is applied twice daily to thinning areas; the oral form is a once-daily low-dose tablet. Your doctor prescribes the form most appropriate for you.

Weeks 1–8 · Build the daily routine
Months 2–4 · Early density changes
Months 4–6 · Response assessed by your doctor
Ongoing · Keep the routine to keep the results

Forms your doctor can prescribe

Topical solution5% (50 mg/ml) — twice daily
Oral (low dose)2.5 – 5 mg / day
Pharmacy price~€10–20 / month

Your schedule is personal

These are typical steps only. Your doctor adjusts the plan to how you respond and tolerate it — and you can message them at any point.

Safety first

Safety, in full.

Minoxidil is an effective medicine — and like any medicine it carries risks. Your doctor screens for all of this before prescribing. Here's the honest picture, not just reassurance.

Adults with androgenetic alopecia or telogen effluvium.

Topical solution / foam: 1 mL applied to a dry scalp twice daily; do not rinse for at least 4 hours.
Initial shedding around weeks 2–8 is common — this is the old hair making room for the new growth, not a worsening.
Visible response usually appears at 3–6 months; stopping reverses the gains.
Low-dose oral minoxidil is an off-label option for selected patients; only when prescribed by your doctor.

Who should not use it

Pregnancy or breastfeeding.
Children under 18.
Known hypersensitivity to minoxidil or propylene glycol (for the solution).
Active scalp disease — broken skin, severe eczema or psoriasis on the scalp until treated.
Significant cardiovascular disease or pheochromocytoma — discuss with the doctor before any oral use.

When to seek urgent care

For severe, sudden or unexpected symptoms, call your local emergency number or go to the nearest emergency department. Then let your doctor know through your account chat.

Read the full Minoxidil safety summary

PRICING

One price. No surprises.

€25 per online medical consultation. If the doctor does not approve treatment, we refund you in full within 48 hours.

SINGLE CONSULTATION

What our patients say.

Verified reviews from Hi-Doctor patients · names changed for privacy · individual results vary.

The doctor was upfront that results would take months. By month five the shedding had clearly slowed.

Marc R.

8 months in treatment

Renewals and check-ins all happen in the account chat. No waiting rooms, no awkward conversations.

Jonas T.

1 year in treatment

They reviewed my history first and explained the risks honestly before prescribing anything.

Adrián M.

6 months in treatment

FREQUENTLY ASKED QUESTIONS

Questions about Minoxidil.

Find out if it's right for you

See if Minoxidil is appropriate for you.

Answer a few questions and a licensed EU doctor reviews your case within 24 hours. Refunded in full if it's not right for you.

Start consultation · €25 See Hair growth

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ALSO AVAILABLE IN

The Minoxidil consultation works the same way across the EU.

AVAILABLE ACROSS SPAIN