Minoxidil (the active ingredient in Regaine®) is one of the most widely used, clinically-approved hair loss treatments on the market. It’s used by millions of people all around the world to help fight against hair loss and stimulate new hair growth.
As with all medications, Minoxidil does have the potential to cause side effects for some users.
The common side effects of Minoxidil were found to be localised to the site of medication application (scalp) and include: itching, irritation, burning sensation, flaking of the scalp, and redness. These side effects are typically mild in nature, and should resolve without intervention.
Other side effects which may occur include headaches and nausea.
When used as directed, Minoxidil is unlikely to cause significant issues. However, some topical Minoxidil side effects may develop if you use the solution excessively, such as by applying it more than two times per day or using too much of it on your scalp at once. Potential side effects associated with excessive Minoxidil use include: Dizziness and/or lightheadedness, swelling that affects your face, ankles, stomach or hands, changes in your body weight, difficulty breathing, chest pain and/or a rapid heartbeat, and headaches.
For a full list of possible side effects as outlined by the manufacturer, please review the product information leaflet.
If you do experience side effects with this medication, please feel free to message a clinician directly through your Care Portal to obtain further advice.