Pharmacy Guide
Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.
Pharmacy Guide
Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.
Regaine for Women Once a Day Scalp Foam 5% w/w Cutaneous Foam
⚠ This medicine appears to have been discontinued
The electronic medicines compendium (emc) no longer publishes a Summary of Product Characteristics for this product, which usually means it is no longer marketed in the UK. The patient leaflet below is kept for reference, but the product may not be available.
If you were prescribed this medicine, other products containing Minoxidil may still be available. Do not stop your treatment — ask your pharmacist or GP what to use instead.
What it is and what it is used for
for
Regaine® for Women ONCE A DAY Scalp Foam is a medicine used to treat common female pattern hair loss in women aged 18 – 65 years, by preventing further hair loss and helping hair re-growth. It contains minoxidil, which is thought to work by aiding the blood flow to the hair follicles on your scalp. ■ The medicine is for use in women aged between 18 and 65 years. ■ Regaine® for Women ONCE A DAY Scalp Foam works best in women who have general hair thinning of the scalp. ■ Those who are younger or have been losing hair for a short period of time are likely to experience the best results. ■ You are unlikely to benefit from Regaine® for Women ONCE A DAY Scalp Foam if you have been balding/thinning for many years or have a large area of hair loss. Hereditary hair loss is recognisable because: ■ Of the pattern of hair loss (see diagrams). ■ It starts gradually and progresses. ■ You have a family history of hair loss. ■ No other symptoms are present with your hair loss.
What you need to know before you take it
e this medicine
This medicine is suitable for most people but a few people should not use it. If you are in any doubt, talk to your doctor or pharmacist. X Do not use this medicine…
■ If you are male. ■ More than ONCE A DAY. ■ If you are under the age of 18 or over the age of 65. ■ If you are pregnant or breast-feeding. ■ If you have ever had a bad reaction to minoxidil or any of the other ingredients. ■ If you have hair loss caused by drug treatment. ■ If you have total baldness or complete loss of all body hair. ■ If the cause of your hair loss is unknown, is due to childbirth, or it is sudden and unexpected. ■ If you have high blood pressure, even if it is not being treated. ■ If you have any condition that affects your scalp, including sunburn and psoriasis. ■ If you have a shaved scalp. ■ If you are using creams, ointments or lotions used to treat scalp conditions, e.g. ■ Dithranol – used to treat psoriasis. ■ Tretinoin – used to treat acne or other skin disorders. ■ Corticosteroids – a type of anti-inflammatory ■ Petrolatum – a common ingredient in hair wax or gel. ■ If you have any kind of dressing or bandage on your scalp. ■ Unless you know that your scalp is normal and healthy. If any of these bullet points apply now or in the past, get advice from a doctor or pharmacist before using Regaine®.
Talk to your doctor or pharmacist…
■ If you are at all unsure whether your scalp is normal and healthy. ■ If you suffer from heart disease, including abnormal heart rhythms or rates, angina or chest pains and / or circulation disorders. ■ If you are taking or using any other medicines including: ■ Certain blood pressure medicines called 'vasodilators' e.g. hydrazaline. There is a potential risk that minoxidil, the active ingredient in Regaine® for Women ONCE A DAY may interact with these medicines and increase their effect. If you are not sure about the medicine you are taking or using, show the bottle or pack to your pharmacist. If any of these bullet points apply now or in the past, talk to a doctor or pharmacist.
If you are pregnant or breast-feeding:
■ This product should NOT be used if you are pregnant or breast-feeding.
Driving and using machines
■ Regaine may cause dizziness or low blood pressure. If you experience these side effects do not drive or operate machinery.
Some of the ingredients can cause problems
■ Regaine® for Women ONCE A DAY Scalp Foam 5% w/w Cutaneous Foam contains 536.3 mg of alcohol (ethanol) in each 1 g. It may cause burning sensation on damaged skin. Ethanol may cause burning and irritation of the eye. If you get Regaine® for Women ONCE A DAY Scalp Foam 5% w/w Cutaneous Foam in your eye, mouth or on a cut or damaged skin, wash the area well with lots of cool tap water. ■ Cetyl alcohol or stearyl alcohol may cause local skin reactions (e.g. contact dermatitis). ■ Butylated hydroxytoluene (E321) may cause local skin reactions (e.g. contact dermatitis), or irritation to the eyes and mucous membranes.
Special warnings relating to Regaine® for Women ONCE A DAY Scalp Foam 5% w/w Cutaneous Foam
■ If minoxidil passes into the blood stream it can cause some side effects related to low blood pressure such as chest pain, rapid heart beat, faintness, dizziness, swollen hands and feet, persistent redness or irritation of the scalp. If you experience any of these side effects, stop using the medicine and tell your doctor. When Regaine® for Women ONCE A DAY Scalp Foam 5% w/w Cutaneous Foam is used as recommended, it is extremely unlikely that these effects will occur. However there is a chance the drug could get into the blood stream if it is over used or if there is a scalp condition such as psoriasis present. Therefore it is very important that you use your medicine as recommended and follow the instructions very carefully. See section 3 ■ Avoid contact with the eyes, mouth, broken skin and sensitive areas. If the foam is accidentally applied to areas of the body other than the scalp, rinse thoroughly with plenty of water. ■ Do not apply to areas of the body other than the scalp. ■ Exceeding the recommended dose will NOT re-grow your hair any more quickly and you have an increased likelihood of getting side effects. ■ Cases of excessive hair growth on the body of infants have been reported following skin contact with minoxidil application sites of patients (caregivers) using topical minoxidil. Hair growth returned to normal within months when infants were no longer exposed to minoxidil. Care should be taken to ensure that children do not
■ You may need to use this medicine ONCE a day for at least 12 – 24 weeks before you see new hair growth. This is because hair growth is a slow process. Some women may need to use this product for at least 24 weeks before seeing results. ■ Hair growth may be soft and downy at the start but should eventually become the same as normal hair. ■ Once the hair has begun to re-grow, you need to continue using this medicine ONCE daily for the growth to continue. ■ Clinical trials on Regaine® Foam efficacy have not been carried out beyond 24 weeks. ■ If at any time during your treatment you are concerned you should consult your doctor or pharmacist. ■ Do not use more than once a day. ■ This product should NOT be used by men.
If anyone uses too much ■ Seek immediate medical advice if anyone, including a child, uses too much of this medicine. Take the medicine and container with you.
If you forget to apply a dose of the foam If you miss one or two applications, just carry on as normal, as if you had not missed the dose(s) – do not use twice as much or twice as often.
If you accidentally swallow the solution If anyone, including a child, swallows any of the foam, take them to a hospital immediately with the Regaine® for Women ONCE A DAY Scalp Foam pack if possible, as the doctor may like to have some idea of how much they have swallowed.
Caution: flammable
The product in this pressurised container is extremely flammable, therefore you should keep it away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. Do not spray on an open flame or other ignition source. Do not pierce or burn, even after use. Keep out of reach of children. Protect from sunlight. Do not expose to temperatures exceeding 50°C.
How to take it
this medicine
Regaine® for Women ONCE A DAY Scalp Foam 5% w/w Cutaneous Foam is for topical and external use only. It should only be applied directly to the scalp area. ■ Do not apply to areas of the body other than the scalp. ■ Wash your hands thoroughly before and after applying the foam and rinse other areas that have come into contact with the foam. ■ Make sure your hair and scalp are completely dry before applying the foam. ■ To open container: Match arrow on can ring with arrow on cap. Pull off cap. ■ Hold the can upside down and press nozzle to dispense the foam onto your fingers. The total amount of foam applied should not exceed 1 g (equivalent to the volume of half a capful). ■ The foam may begin to melt on contact if your fingers are warm. Rinse your fingers in cold water first before dispensing. Be sure to dry them thoroughly before handling the foam. ■ Use a comb to part your hair. Remember the foam needs to be applied to your scalp, NOT your hair. ■ As you may need to part your hair several times during the application, you may find it convenient to dispense the foam onto a non-absorbent surface, such as a dish or saucer. The total amount of foam applied should not exceed half a cap. ■ Within your hair thinning areas, make a centre parting to help maximise scalp exposure. Part your hair at least 2 more times on each side of the centre parting. ■ Using your fingertips, spread just enough foam over the hair loss areas and gently massage the foam into the scalp starting from the back to front (forehead) direction. Use until all the foam is gone. ■ After each use, thoroughly clean and dry the dish or saucer if used. ■ Wash your hands well with soap and water after applying the foam. ■ Allow the foam to dry completely, especially if applied before going to bed. ■ To close container: place cap on container and snap into place. Make sure that the arrows do not line up so that the cap remains child-resistant. 1
2
3
4
OPEN CONTAINER
HOLD CAN STRAIGHT UPSIDE DOWN
PART THE HAIR
USE YOUR FINGERS
Daily dose for Adult Women: Age
Dose
Female Adults aged 18 to 65 years
■ On a completely dry scalp and hair, apply a dose of 1 g (equivalent to the volume of half a capful) to the total affected area once daily. ■ Do NOT apply more than ONCE a day. ■ Do not exceed 1 g per day. ■ This product should NOT be used by men.
Continued use of Regaine®
Possible side effects
Like all medicines, this medicine can cause side effects, although not everybody gets them.
If you experience any of the following, stop using the medicine and seek immediate medical help: ■ Chest pain. ■ Swelling of the face, lips, mouth, tongue or throat which may cause difficulty in swallowing or breathing.
If you experience any of the following, stop using the medicine and talk to your doctor: ■ Allergic reactions including swollen face, skin redness or itching or throat tightness. ■ Low blood pressure. ■ Fast heart beat or an increased awareness of the heart beat (palpitations). ■ Faintness or dizziness. ■ Swollen hands or feet, shortness of breath, high blood pressure. ■ Sudden unexplained weight gain. ■ Persistent local redness or rash.
Other effects which may occur include: Very common (may affect more than 1 in 10 people) ■ Headache. Common (may affect up to 1 in 10 people) ■ Itching or dermatitis. ■ Unwanted non-scalp hair has been reported (including facial hair growth in women). Always wash your hands thoroughly after application and if you accidentally apply the foam to parts of your body other than the scalp, rinse thoroughly with plenty of water. Allow sufficient drying time before going to bed. Uncommon (may affect up to 1 in 100 people) ■ Nausea. Rare (may affect up to 1 in 1,000 people) ■ Change in hair texture may occur. If this happens, you should stop using Regaine.
Other effects which may occur but it is not known how often: ■ Depressed mood. ■ Eye irritation. ■ Vomiting ■ Scalp irritation such as local redness, dryness, flaky skin have all been reported. This may be due to the hydroxybutylated toluene, cetyl alcohol and / or stearyl alcohol in the product. This is usually only a temporary effect, but if it is persistent you should stop using this product. ■ Acne-like rash, itchy rash, blistering, bleeding or ulceration. ■ Temporary hair loss may occur during the first 2-6 weeks of use. This is likely to be as a result of a change within the growth cycle and it should stop within a couple of weeks. If this hair loss continues for longer than 2 weeks, stop using the product and talk to your doctor. ■ Change in hair colour may occur. If this happens, you should stop using Regaine.
Reporting of side effects If you get any side effects talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effect directly via the Yellow Card Scheme at www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects, you can help provide more information on the safety of this medicine.
How to store it
this medicine
FURTHER INFORMATION ABOUT REGAINE® FOR WOMEN ONCE A DAY SCALP FOAM Q If my hair growth is restored using Regaine® for Women ONCE A DAY Scalp foam, what will the new hair look like? A If you respond to treatment, your initial re-growth may at first be soft, downy ("vellus") hair and may be barely visible. After further treatment, your re-growth may change and become the same colour and thickness as the rest of your hair. Q Is shampooing necessary before applying Regaine® for Women ONCE A DAY Scalp Foam? A No, but if you do choose to shampoo, we recommend the use of a shampoo, with a gentle cleansing and conditioning action that does not impede the absorption of Regaine® for Women ONCE A DAY Scalp Foam.
Keep this medicine out of the sight and reach of children. Do not store above 25°C. Do not use this medicine after the expiry date which is stated on the base of the can. The expiry date refers to the last day of that month. Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. Q Can I use a hair dryer with Regaine® for Women ONCE A DAY These measures will help to protect the environment. Scalp Foam? A Yes, but not to dry the foam itself.
Contents of the pack and other information
Q Can I use common hair styling preparations such as hair gels or What this medicine contains hair sprays while using Regaine® for Women ONCE A DAY Scalp ® The active substance in 1 g of Regaine is minoxidil 50 mg. Foam? Other ingredients are: ethanol anhydrous, purified water, butylated A Yes, but Regaine® for Women ONCE A DAY Scalp Foam should be hydroxytoluene (E321), lactic acid, citric acid anhydrous, glycerol, cetyl applied to the dry scalp before these other preparations are applied. alcohol, stearyl alcohol, polysorbate 60, propane, butane, isobutane. Q Can I have my hair dyed? What the medicine looks like A Yes, you may, there is no need to change your hair care routine. Regaine® for Women ONCE A DAY Scalp Foam 5% w/w Cutaneous However, you should tell your hair care professional that you are Foam is a foam contained in a 73 ml (equivalent to 60 g) can, enough using Regaine® for Women ONCE A DAY Scalp Foam. To minimise for 2 months of treatment. breakage of existing hair, just ask that any massaging of your scalp Packs contain 1 or 2 cans. be gentle and that a comb with widely spaced, round teeth be used to avoid excessive pulling. Product Licence holder and Manufacturer: McNeil Products Limited, 1 Station Hill Square, Station Hill, Reading, RG1 1LN, UK. This leaflet was last revised in March 2026 Regaine® is a registered trade mark.
Q Can Regaine® for Women ONCE A DAY Scalp Foam be used with a sun-blocking agent? A No, if you are planning to be in the sun after applying Regaine® for Women ONCE A DAY Scalp Foam, use headwear. Q Can I apply Regaine® for Women ONCE A DAY Scalp Foam after swimming? A Yes, as long as hair is dry. However, Regaine® for Women ONCE A DAY Scalp Foam should not be applied more than ONCE a day. Q How long will each can of Regaine® for Women ONCE A DAY Scalp Foam last? A One can of Regaine® for Women ONCE A DAY Scalp Foam should last for 60 days (2 months), if applied ONCE a day according to the directions. As you near the end of the 2 months' supply, you should plan to renew it so that you do not miss a daily application.
EX00615
Frequently asked questions about Regaine for Women Once a Day Scalp Foam 5% w/w Cutaneous Foam
What is the active substance in Regaine for Women Once a Day Scalp Foam 5% w/w Cutaneous Foam?
The active substance in Regaine for Women Once a Day Scalp Foam 5% w/w Cutaneous Foam is minoxidil.
Are there equivalent medicines to Regaine for Women Once a Day Scalp Foam 5% w/w Cutaneous Foam?
Medicines with the same active substance, strength and form include: Regaine for Men Extra Strength Scalp Foam 5% w/w Cutaneous Foam (GSL), Regaine for Women Regular Strength. They are interchangeable only if your prescriber or pharmacist says so.
Where does this information come from?
This leaflet reproduces the patient information leaflet approved for Regaine for Women Once a Day Scalp Foam 5% w/w Cutaneous Foam, as published on the electronic medicines compendium (emc). The version printed inside your medicine’s packaging is the one that applies to you.
Can I get Regaine for Women Once a Day Scalp Foam 5% w/w Cutaneous Foam without a prescription?
Whether a medicine is available over the counter or on prescription only depends on its licence. Check the leaflet, or ask your pharmacist — they can tell you straight away.
About this leaflet
The text above reproduces the patient information leaflet approved for this medicine, restructured for easier reading.
- Source: electronic medicines compendium (emc), Datapharm
- Active substance: minoxidil
- Official document: view the original leaflet on emc →
⚕For healthcare professionals — Summary of Product Characteristics (SmPC)Full SmPC: dosage, interactions, contraindications, warnings+
4.1. Therapeutic indications
This product is indicated for the treatment of alopecia androgenetica in women (also known as female pattern hair loss) in women aged between 18 and 65. Onset and degree of hair regrowth may be variable among users. Although trends in the data suggest that those users who are younger, whose hair has been thinning for a shorter period of time or who have a smaller area of thinning on the vertex are more likely to respond to the product, individual responses cannot be predicted.
4.2. Posology and method of administration
Women aged 18-65:
Hair and scalp should be thoroughly dry prior to topical application of this product. A dose of 1 g (equivalent to the volume of half a capful) of this product should be applied to the total affected areas of the scalp once daily. The total daily dosage should not exceed 1 g.
It may take once-daily applications for 12 to 24 weeks before evidence of hair growth can be expected. Users should discontinue treatment if there is no improvement seen after 24 weeks.
If hair regrowth occurs, once daily applications of this product are necessary for continued hair growth.
Clinical Trials have not investigated the efficacy of this product beyond 24 weeks. Further secondary results and safety were assessed up to 52 weeks (see section 5.1).
Special populations
There are no specific recommendations for use in older people or in patients with renal or hepatic impairment.
Paediatric population
Not recommended. The safety and effectiveness of this product in children and adolescents below the age of 18 years has not been established.
Method of administration
Hold can upside down and press nozzle to dispense foam onto the hand. Spread with fingertips over the affected areas and gently massage the foam into the scalp working from the back to the front of the scalp. Hands should be washed thoroughly after application.
4.3. Contraindications
This product is contraindicated:
- in men
- in users with a history of sensitivity to minoxidil or any of the other ingredients
- in users with treated or untreated hypertension
- in users with any scalp abnormality (including psoriasis and sunburn)
- in users with a shaved scalp
- if occlusive dressings or other topical medical preparations are being used.
4.4. Special warnings and precautions for use
Before using this product, the user should determine that the scalp is normal and healthy. Topical minoxidil should not be applied to inflamed, infected or painful scalp skin (see section 4.3).
Topical minoxidil is not indicated when there is no family history of hair loss, hair loss is sudden and/or patchy, hair loss is due to childbirth, or the reason for hair loss is unknown.
The patient should stop using this product and see a doctor if hypotension is detected or if the patient is experiencing chest pain, rapid heartbeat, faintness or dizziness, sudden unexplained weight gain, swollen hands or feet or persistent redness or irritation of the scalp, or other unexpected new symptoms occur (see section 4.8).
Patients with known cardiovascular disease or cardiac arrhythmia should contact a physician before using this product.
Some patients have experienced changes in hair colour and/or texture with this product use.
This product is for external use only. Do not apply to areas of the body other than the scalp.
Using more than the recommended dose or more often will not improve results.
Unwanted hair growth may be caused by the transfer of the product to areas other than the scalp.
Hands should be washed thoroughly after applying the foam.
Some consumers reported increased hair shedding upon initiation of therapy with this product. This is most likely due to minoxidil's action of shifting hairs from the resting telogen phase to the growing anagen phase (old hairs fall out as new hairs grow in their place). This temporary increase in hair shedding generally occurs two to six weeks after beginning treatment and subsides within a couple of weeks. If shedding persists (> 2 weeks), users should stop using this product and consult their doctor.
Users should be aware that, whilst extensive use of this product has not revealed evidence that sufficient minoxidil is absorbed to have systemic effects, greater absorption because of misuse, individual variability, unusual sensitivity or decreased integrity of the epidermal barrier caused by inflammation or disease processes in the skin (eg. excoriations of the scalp, or scalp psoriasis) could lead, at least theoretically, to systemic effects.
Accidental ingestion may cause serious cardiac adverse events. Therefore this product has to be kept out of the reach of children.
This product contains 536.3 mg of alcohol (ethanol) in each 1 g. It may cause burning sensation on damaged skin. Ethanol may cause burning and irritation of the eye. In the event of accidental contact with sensitive surfaces (eye, abraded skin and mucous membranes) the area should be bathed with large amounts of cool tap water.
This product also contains butylated hydroxytoluene, which may cause local skin reactions (e.g. contact dermatitis), or irritation to the eyes or mucous membranes, and cetyl and stearyl alcohol, which may cause local skin reactions (e.g. contact dermatitis)
Hypertrichosis in children following inadvertent topical exposure to minoxidil:
Cases of hypertrichosis have been reported in infants following skin contact with minoxidil application sites of patients (caregivers) using topical minoxidil. Hypertrichosis was reversible, within months, when infants were no longer exposed to minoxidil. Contact between children and minoxidil application sites should therefore be avoided.
4.5. Interaction with other medicinal products and other forms of interaction
This product should not be used concomitantly with other medications applied topically on the scalp (see section 4.3).
Topical drugs, such as corticosteroids, tretinoin or dithranol or petrolatum which alter the stratum corneum barrier, could result in increased absorption of minoxidil if applied concurrently. Although it has not been demonstrated clinically, there exists the theoretical possibility of absorbed minoxidil potentiating orthostatic hypotension caused by peripheral vasodilators.
Guanethidine has been reported to interact with oral formulations of minoxidil resulting in rapid and pronounced lowering of blood pressure. There is a theoretical possibility that topical minoxidil may also interact with guanethidine
4.6. Fertility, pregnancy and lactation
This product should not be used during pregnancy or lactation.
Pregnancy
There are no adequate and well-controlled studies in pregnant women. Studies in animals have shown a risk to the foetus at exposure levels that are very high compared to those intended for human exposure. There is potentially a risk of foetal harm in humans (see section 5.3).
Lactation
Systemically absorbed minoxidil is secreted in human milk. The effect of minoxidil on newborns/infants is unknown.
4.7. Effects on ability to drive and use machines
This product may cause dizziness or hypotension (see section 4.8). If affected, patients should not drive or operate machinery.
4.8. Undesirable effects
The safety of topical minoxidil from clinical trials data is based on data from 7 placebo-controlled randomised clinical trials in adults evaluating either 2% or 5% minoxidil solution, and two placebo-controlled randomised clinical trials in adults evaluating a 5% foam formulation.
Adverse drug reactions (ADRs) identified during clinical trials and post-marketing experience with minoxidil are included in the table below by System Organ Class (SOC).
The frequencies are provided according to the following convention:
Very common (≥1/10); common (≥1/100,<1/10); uncommon (≥1/1,000, <1/100); rare (≥1/10,000, <1/1,000); very rare (<1/10,000), not known (cannot be estimated from the available data).
ADRs are presented by frequency category based on 1) incidence in adequately designed clinical trials or epidemiology studies, if available, or 2) when incidence cannot be estimated, frequency category is listed as 'Not known'.
Body System (SOC)
Frequency
Adverse Drug Reaction (Preferred Term)
Immune System Disorders
Common
Hypersensitivity reactions (The manifestations of Hypersensitivity reactions may include the following MedDRA PTs: Face oedema, Generalised erythema, Pruritus generalized, Swelling face, and Throat tightness)
Not known
Angioedema (The manifestations of angioedema may include following PTs: Lip oedema, Lip swelling, Oedema mouth, Oropharyngeal swelling, Pharyngeal oedema, Swollen tongue and Tongue oedema)
Psychiatric Disorders
Not known
Depressed mood
Nervous System Disorders
Very common
Headache
Uncommon
Dizziness
Eye disorders
Not known
Eye irritation
Cardiac disorders
Common
Chest pain
Uncommon
Palpitations
Not known
Heart rate increased
Vascular disorders
Not known
Hypotension
Respiratory, thoracic and mediastinal disorders
Uncommon
Dyspnoea
Gastrointestinal Disorders
Uncommon
Nausea
Not known
Vomiting
Skin and subcutaneous tissue disorders
Common
Hypertrichosis (unwanted non-scalp hair including facial hair growth in women)
Pruritus (including rash pruritic generalised and eye pruritus)
Rash (including pustular, papular, generalised, vestibular and macular rash)
Dermatitis (including contact, allergic, atopic and seborrhoeic dermatitis)
Rare
Changes in hair texture
Not known
Dry skin
Skin exfoliation (including exfoliative rash and dermatitis exfoliative)
Acne (acneiform rash)
Temporary hair loss (see section 4.4)
Changes in hair colour
General disorders and administration site conditions
Common
Oedema peripheral
Not known
Application site reactions (These sometimes involve nearby structures like the ears and face and typically consist of pruritus, irritation, pain, rash, oedema, dry skin, erythema and rash erythematous but can sometimes be more severe and include exfoliation, dermatitis, blistering, bleeding and ulceration)
Investigations
Common
Weight increased
Reporting of suspected adverse reactions
Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store
4.9. Overdose
Increased systemic absorption of minoxidil may potentially occur if higher-than-recommended doses of this product are applied to larger surface areas of the body or areas other than the scalp.
Because of the concentration of minoxidil in this product, accidental ingestion has the potential of producing systemic effects related to the pharmacological action of the drug (1 g of this product contains 50 mg minoxidil; the maximum recommended adult dose for oral minoxidil administration in the treatment of hypertension is 100mg per day).
Signs and symptoms of minoxidil overdosage would primarily be cardiovascular effects associated with sodium and water retention, and tachycardia, hypotension, dizziness and lethargy can also occur.
Treatment
Treatment of minoxidil overdosage should be symptomatic and supportive.
Fluid retention can be managed with appropriate diuretic therapy. Clinically significant tachycardia can be controlled by administration of a beta-adrenergic blocking agent.
💬 Ask about this leaflet
Ask anything about Regaine for Women Once a Day Scalp Foam 5% w/w Cutaneous Foam. The assistant answers only from this leaflet — if the leaflet does not cover it, it will say so. It does not give medical advice.
Answers come from the patient leaflet published on the electronic medicines compendium (emc). They are not medical advice. Ask a pharmacist or your GP if you are unsure. For urgent help call NHS 111, or 999 in an emergency.