Medication questions Minoxidil
Can women take oral minoxidil for hair loss in the UK?
Short answer
Oral minoxidil tablets are licensed in the UK only for severe high blood pressure, so using them for hair loss in women is off-label. Some doctors prescribe a low dose for female pattern hair loss, but the published evidence is mostly small studies and retrospective reviews. The tablets are not recommended in pregnancy and need a medical check first. At WMG Meds, a doctor decides whether they are appropriate for you.
Key facts
- The UK-licensed minoxidil tablet (Loniten) is indicated for severe hypertension. Hair loss in women is not a licensed use, so it is off-label.
- The minoxidil products licensed in the UK for women's hair loss are topical: a 2% solution and a 5% foam, for women aged 18 to 65.
- A 2021 multicentre study of 1,404 people on low-dose oral minoxidil (943 of them women) found extra hair growth in 15.1% and no life-threatening effects. It was retrospective and had no control group.
- The Loniten SmPC says minoxidil is not recommended during pregnancy or in women of childbearing potential not using contraception, and that it passes into breast milk.
- Whether oral minoxidil suits you is a clinical decision after a review of your heart, blood pressure, kidney and pregnancy history.
What the licence says
The UK-licensed minoxidil tablet, Loniten, is indicated "for the treatment of severe hypertension", according to its summary of product characteristics (SmPC) on the eMC. Hair loss is not on the licence, and there is no licensed hair loss dose. A doctor who prescribes the tablet for hair loss is prescribing off-label, and should explain what that means before you decide.
For women's hair loss, the minoxidil products with a UK licence are topical: Regaine for Women Regular Strength 2% solution and Regaine for Women Once a Day 5% foam, both licensed for women aged 18 to 65. Our guide to whether women can use minoxidil covers them, and 2% or 5% and foam or liquid explain the differences between them.
The British Association of Dermatologists (BAD) patient leaflet on female pattern hair loss lists low-dose oral minoxidil among the treatments it discusses and refers to recent research. It lists spironolactone and other anti-androgen tablets separately as unlicensed; see spironolactone for hair loss.
What the evidence looks like
The evidence for oral minoxidil in hair loss is real but limited, and most of it is not specific to women.
A 2021 review in the Journal of the American Academy of Dermatology looked at 17 studies with 634 patients in which oral minoxidil was the main hair loss treatment. Androgenetic alopecia was the most studied condition. The authors said larger randomised studies with standardised measurements are needed to clarify the best treatment protocol.
A 2021 multicentre study in the same journal described safety in 1,404 people prescribed low-dose oral minoxidil for at least 3 months, 943 of them women. It was retrospective, with no control group. The most frequent adverse effect was extra hair growth (15.1%), which led to 14 people stopping (0.5%). Systemic effects were lightheadedness (1.7%), fluid retention (1.3%), a fast heartbeat (0.9%), headache (0.4%), swelling around the eyes (0.3%) and insomnia (0.2%). Treatment was stopped because of side effects in 29 people (1.2%), and no life-threatening effects were observed.
These figures describe groups of people who were treated and followed, not a licensed programme, and they cannot tell you what will happen for you. We do not rank oral minoxidil against other treatments, because the evidence does not support a simple ranking.
Side effects to expect and watch for
Extra hair. The Loniten SmPC says hypertrichosis (extra hair growth) occurs in most people treated at the doses used for blood pressure, usually 3 to 6 weeks after starting, and that it can be expected to reverse one to six months after stopping. At low doses for hair loss it is less frequent, as the 15.1% figure above shows, but it is the effect women most often ask about. See oral minoxidil and facial hair.
Whole-body effects. Oral minoxidil acts on the circulation. Dizziness, a fast heartbeat and swollen ankles are the effects to report; the guides on heart and circulation and ankle swelling say what is common and what needs urgent help. Our oral minoxidil safety guide sets them out in one place. If you take blood pressure medicines, read oral minoxidil and blood pressure medicines and tell your prescriber about everything you take.
Reporting. You can report a suspected side effect to the MHRA through the Yellow Card scheme. For anything urgent, such as chest pain, fainting or sudden breathlessness, get medical help straight away.
Pregnancy, breastfeeding and contraception
The Loniten SmPC says minoxidil is "not recommended during pregnancy and in women of childbearing potential not using contraception", and notes that newborn hypertrichosis has been reported after exposure in pregnancy. It also says minoxidil has been reported to pass into breast milk, and that a decision must be made whether to stop breastfeeding or to stop the medicine.
That is why a doctor will ask whether you are pregnant, trying to conceive, breastfeeding or using contraception before suggesting the tablets. If you are planning a family, tell them: treatment may need to wait. Our guide to whether women can use minoxidil sets out the pregnancy and contraception advice from an NHS dermatology leaflet, and the licensed topical products are not for use in pregnancy or while breastfeeding either.
How a WMG Meds doctor decides
WMG Meds does not offer finasteride or dutasteride to women, and it does not prescribe HRT or spironolactone. What it can offer women with female pattern hair loss is minoxidil-based treatment: compounded topical minoxidil (an unlicensed special) or low-dose oral minoxidil, both prescribed off-label. Which one, if either, is appropriate is a clinical decision after a review of your history, including your heart, blood pressure, kidney and pregnancy questions. For some women the answer will be a different option, or no medicine at all.
Before considering medicine, the cause is worth confirming. Thinning can come from low iron, a thyroid problem, PCOS, the menopause or shedding after a trigger, and some of those need a GP rather than a tablet. Our hair loss in women guide explains the causes and what to check first, and the female pattern hair loss guide covers the pattern itself.
Oral minoxidil is a prescription-only medicine. If you would like a doctor's view on your own situation, you can start a clinical review; the doctor may also advise you to see your GP or a dermatologist instead.
Want an answer for your own situation?
A GMC-registered doctor can review your history and medicines and tell you what would suit you, including whether treatment is right for you at all. The assessment and review are free.
Start your free assessment →Related questions
Is oral minoxidil licensed for hair loss in women in the UK?
No. The UK-licensed minoxidil tablet is indicated for severe high blood pressure. Using it for hair loss is off-label. The minoxidil products licensed for women's hair loss are the topical Regaine for Women 2% solution and 5% foam.
Does oral minoxidil cause facial hair in women?
Extra hair growth is the most frequent side effect. In a 2021 study of 1,404 people on low-dose oral minoxidil, 15.1% had it, and 0.5% stopped treatment because of it. The Loniten SmPC says it usually appears 3 to 6 weeks after starting and reverses one to six months after stopping.
Can I take oral minoxidil if I might get pregnant?
The Loniten SmPC says it is not recommended during pregnancy or in women of childbearing potential who are not using contraception. A doctor will ask about pregnancy plans and contraception before suggesting it. If you are trying to conceive, treatment may need to wait.
Can I take oral minoxidil while breastfeeding?
The SmPC says minoxidil has been reported to pass into breast milk, and that a decision must be made whether to stop breastfeeding or the medicine. Our women's guides say oral minoxidil is not suitable while breastfeeding. Tell the doctor if you are breastfeeding.
Is oral minoxidil better than the topical kind for women?
We do not make that comparison, because the evidence does not support a simple ranking. They differ in licence, how they are used and their side effects. See oral versus topical minoxidil for the differences.
Does WMG Meds prescribe oral minoxidil to women?
A WMG Meds doctor can consider low-dose oral minoxidil, prescribed off-label, for a woman with female pattern hair loss after a clinical review of her history. It is a clinical decision, not a given, and it is not suitable in pregnancy or while breastfeeding.
Sources
- Loniten 2.5 mg tablets: summary of product characteristics (eMC)
- Regaine for Women Once a Day Scalp Foam 5%: summary of product characteristics (eMC)
- Regaine for Women Regular Strength 2% solution: summary of product characteristics (eMC)
- British Association of Dermatologists: Hair loss, female pattern (androgenetic alopecia), patient leaflet
- Randolph M, Tosti A. Oral minoxidil treatment for hair loss: a review of efficacy and safety. J Am Acad Dermatol 2021 (PMID 32622136)
- Vañó-Galván S et al. Safety of low-dose oral minoxidil for hair loss: a multicenter study of 1404 patients. J Am Acad Dermatol 2021 (PMID 33639244)
- MHRA Yellow Card scheme
Facts checked against these sources on 23 October 2026. This page is general information, not personal medical advice. Read our editorial policy.