Regaine is a medication for women and men suffering from baldness and hair loss. The substance is available in both a topical solution and foam, which include the active ingredient Minoxidil. More information

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Regaine, also known by the names Rogaine and Minoxidil, is a treatment for baldness and hair loss. This drug is designed to support the regrowth and continued growth of hair on the scalp. Doctors believe that the substance works by dilating the blood vessels in the scale to improve hair follicle function. Regaine does not cause the permanent regrowth of hair on the scalp; you will be required to continue using the substance regularly to maintain your new hair.  

What is Regaine? 

Regaine is a medication for women and men suffering from baldness and hair loss. The substance is available in both a topical solution and foam, which include the active ingredient Minoxidil. Originally, minoxidil was used in tablet form for the treatment of high blood pressure. The drug lowers blood pressure by dilating blood vessels. However, doctors and scientists in studies noticed that people taking this medicine experienced excessive hair regrowth as a side effect. Further research found that it was possible to stimulate hair growth by applying minoxidil to the scalp directly. Currently, it's not fully understood how Regaine stimulates the growth of hair. Some experts believe that the results have something to do with the dilation of the blood vessels in the scalp, which improve circulation in the hair follicles. 

How do you use Regaine? 

Regaine is a hair loss solution that is applied topically to the scalp. You will need to follow the instructions given by your doctor carefully when using this medicine. Do not use more than is recommended, as it can irritate the skin. You will also reduce your chances of absorbing Regaine if you over-use the substance. Do not apply Regaine to any other parts of your body aside from your scalp. When applying Regaine, you will need to make sure that your scalp is completely clean and clear of any other skin products or substances. Hair colouring, hair relaxers, and other hair permanents may be used when you're taking Regaine. However, the scalp will need to be washed before you apply the substance. Do not use Minoxidil in any form up to 24 hours before and after the hair treatment procedure. Regaine is available in foam and topical solution.  

To apply the topical solution, make sure that your hair and scalp are dehydrated, then apply the prescribed amount to the centre of the scalp area being treated. Follow the instructions given by your doctor on how to use the substance. You should not wash your hair for up to four hours after using Regaine. When using Regaine make sure that you wash your hands to remove the medicine, and do not use a hairdryer to dry the scalp after application. Make sure that you give the Regaine plenty of time to dry after application, and don't go to bed unless it is fully absorbed. Remember that Regaine can stain clothing and other linens if it's not dry. Avoid transferring the medicine onto other parts of your body. To use the Regaine foam, part your hair into multiple rows to expose the areas where thinning is most obvious. Hold the can upside down to apply the foam, and gently massage the substance into your scape. Make sure that you wash your hands after using the foam to remove any remaining traces of the medicine. If your scalp become painful, irritated or abraded, speak to your doctor.  

What dosages are available? 

The dose of Regaine you should use will be decided by your doctor based on the details of your condition. It's important not to use more Regaine than you are told to apply to try and speed up the process. Using more Regaine doesn't lead to better results. The amount of medicine you take will often depend on the strength of the Regaine you are using too. For hair growth, adults will usually apply at least one ml of the solution to their scalp every day. If you're using the foam version of the Regaine product, then you should be using around half a capful on the affected area. Children usually aren't approved for using Regaine. It is essential to take your dosages on time as often as your doctor tells you to. If you fail to continue using Regaine twice each day (the usual dose), then your hair might begin to fall out again. If you miss a dose of this medicine, you will usually need to apply it as soon as possible. However, if it's almost time to use your next dose, simply skip the dose you missed and continue with your schedule as normal.  

What are the side effects of Regaine? 

Some people will have negative reactions to using Regaine. If you're taking this medication and you notice redness, stinging or burning at the site of your application, then speak to your doctor. Some of these minor side effects can dissipate on their own. However, if the effects persist or worsen, then you may need to stop using Regaine. Usually, if your doctor has asked you to use this medication, then they will have assessed the potential benefits and negatives of taking the substance. Usually, dangerous side effects from using Regaine are rare; however in some cases, when it is absorbed through the skin, the active ingredient can cause problems.  Stop using the drug immediately and talk to your doctor if you notice unwanted facial or body hair appearing in areas other than your scalp. Make sure to keep an eye out for a fast or irregular heartbeat, dizziness, chest pain, swelling in your feet or hands, unusual weight gain, and tiredness too. Some people will also experience trouble breathing-  particularly when they are lying down. 

There is a possibility that you could have an allergic reaction to Regaine. Make sure that you seek help immediately if you notice symptoms that indicate an allergic reaction, including swelling of the tongue, throat or face, rashes, itching, or severe dizziness. Trouble breathing may also be a sign of a reaction.  

When dhouldn't you use Regaine? 

Not everyone will respond well to minoxidil and the products made from it. Speak to your doctor before taking Regaine and make sure they're aware of any allergies that you may have, including allergies to the active ingredient. Additionally, it's worth reconsidering your use of Regaine if you have any of the following health problems: 

  • Chest pain 
  • Heart attack or heart failure 
  • Liver or kidney disease 
  • Diseases of the scalp 
  • Infections or cuts on the scalp 
  • Eczema 

It is not a good idea to use Regaine when you are pregnant, discuss your options with your doctor. Additionally, it's not known whether this drug will pass into breast milk. Consult a registered doctor before nursing your child when taking Regaine.

Does Regaine interact with any other medications? 

You must always tell your doctor or pharmacist about all other medications you are taking before using Regaine. This includes prescription medications, over-the-counter drugs, supplements, and herbal remedies. Do not start or change the dosage of any medicine before you speak to a medical professional. Before you use Regaine, make sure you tell your doctor if you're using the following products: 

  • Drugs, like guanethidine for high blood pressure 
  • Skin products used for the scalp 
  • Drugs that interact with alcohol 
  • Medications, like isotretinoin or Vaseline 
  • Hydrocortisone or other corticosteroids 

If you are using other medicines on your scalp at the same time that you're using Regaine, this can reduce the effectiveness of the medication. Many substances can make it more difficult for minoxidil to be absorbed into the scalp and the bloodstream. This is not a complete list of possible interactions between Regaine and other substances. A consultation with a doctor or pharmacist is crucial when using this medication.  

Where can you buy Regaine? 

Most drug stores and pharmacies that stock solutions for hair loss will offer Regaine today. It is possible to get this medication without a prescription, although it's best to speak to a pharmacist before changing your medication routine. You can get forms of Regaine that are specifically designed for both men and women, and there is a range of application forms available. It's also possible to buy "extra strength" Regaine from some online and offline pharmacies.  

Can you get Regaine without a prescription?  

Regaine was only available as a prescription medication for several years. However, in the late 90s, it became possible to get this drug over-the-counter. Despite this, it's usually a good idea to speak to a doctor or pharmacist about your condition before taking any new medication. They will be able to tell you whether Regaine is likely to work for you and can prevent you from facing any unwanted negative interactions or side effects.  




Cerner Multum Inc, Last updated 2019, Rogaine, retrieved from:  

McNeil Products Ltd, Accessed 9th of May 2019, Regaine for Men Extra Strength, retrieved from:  

MedicineNet, Accessed 9th of May 2019, Minoxidil - Topical, Rogaine, retrieved from:  

Assessed by:

Dr Imran Malik, General practitioner
Registration number: GMC: 4741365

Dr Imran Malik studied undergraduate medicine at King's College University in Central London and clinical studies at the prestigious King's College Hospital. He graduated with a MBBS degree in 2000 and went on to gain postgraduate memberships with the Royal Society of Medicine and also General Practice in 2006.