Minoxidil (Systemic)

Brand Names : Loniten

Side Effects of This Medicine

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

More common

Fast or irregular heartbeat; weight gain (rapid) of more than 5 pounds (2 pounds in children)

Less common

Chest pain; shortness of breath

Check with your doctor as soon as possible if any of the following side effects occur:

More common

Bloating; flushing or redness of skin; swelling of feet or lower legs

Less common

Numbness or tingling of hands, feet, or face

Rare

Skin rash and itching

Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:

More common

Increase in hair growth, usually on face, arms, and back

Less common or rare

Breast tenderness in males and females; headache

This medicine causes a temporary increase in hair growth in most people. Hair may grow longer and darker in both men and women. This may first be noticed on the face several weeks after you start taking minoxidil. Later, new hair growth may be noticed on the back, arms, legs, and scalp. Talk to your doctor about shaving or using a hair remover during this time. After treatment with minoxidil has ended, the hair will stop growing, although it may take several months for the new hair growth to go away.

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.