Drug guide

Mefenamic Acid

Mefenamic Acid is used to treat pain, including menstrual pain. It decreases inflammation (swelling) and uterine contractions. Mefenamic Acid is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

Mefenamic Acid comes as a capsule to take by mouth. It is taken every 6 hours as needed for up to 1 week. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take Mefenamic Acid exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.