Minoxidil Side Effects

Uses

Minoxidil solution and foam are used to help hair growth in the treatment of male pattern baldness. It is not used for baldness at the front of the scalp or receding hairline in men. The 2 percent minoxidil solution is also used to help hair growth in women with thinning hair.

Minoxidil belongs to a class of drugs known as vasodilators. It is not known how minoxidil causes hair growth. This medication is not used for sudden/patchy hair loss, unexplained hair loss (e.g., no family history of hair loss), or hair loss after giving birth.

Do not use this product if you are 18 years old or younger.

Side Effects

Burning, stinging, or redness at the application site may occur. If any of these effects persist or worsen, contact your doctor or pharmacist promptly.

If your doctor has directed you to use this medication, remember that he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Rarely, this medication can be absorbed through the skin and cause side effects. Stop using this medication and tell your doctor immediately if any of these unlikely but serious side effects occur: unwanted facial/body hair, dizziness, fast/irregular heartbeat, fainting, chest pain, swelling of hands/feet, unusual weight gain, tiredness, difficulty breathing especially when lying down.

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US –

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada – Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Precautions

Before using minoxidil, tell your doctor or pharmacist if you are allergic to it; or to any of its ingredients; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

If you have any of the following health problems, consult your doctor or pharmacist before using this product: diseases of the scalp (e.g., eczema, infection, cuts), heart problems (e.g., chest pain, heart attack, heart failure), kidney disease, liver disease.

During pregnancy, this product should be used only when clearly needed. Discuss the risks and benefits with your doctor.

It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.

Interactions

If you are using this product under your doctor’s direction, your doctor or pharmacist may already be aware of possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.

Before using this product, tell your doctor or pharmacist if you use any of the following products: drugs for high blood pressure (e.g., guanethidine), other skin products used on the scalp, drugs that interact with alcohol (e.g., disulfiram, metronidazole).

Do not start or stop any medicine without doctor or pharmacist approval.

This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.

Overdose

This medicine may be harmful if swallowed. If swallowing or overdose is suspected, contact a poison control center or emergency room immediately. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: dizziness, drowsiness, fainting, flushing.

Notes

Keep all regular medical and laboratory appointments.

Missed Dose

If you miss a dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

Storage

Store the US product at room temperature between 68-77 degrees F (20-25 degrees C) away from moisture and sunlight.

Store the Canadian product at room temperature between 59-86 degrees F (15-30 degrees C) away from light and moisture.

Keep all medicines away from children and pets.

This product is flammable. Keep it away from fire, and avoid open flame after treatment until the medication has completely dried.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.

Information last revised March 2013. Copyright(c) 2013 First Databank, Inc.