mefenamic acid (generic name)

It is used to reduce swelling and to treat pain
(me fe NAM ik AS id)
Table of Contents
powered by healthline

Average Ratings

What should I watch for while using this medicine?

Tell your doctor or health care professional if your pain does not get better. Talk to your doctor before taking another medicine for pain. Do not treat yourself.

This medicine does not prevent heart attack or stroke. In fact, this medicine may increase the chance of a heart attack or stroke. The chance may increase with longer use of this medicine and in people who have heart disease. If you take aspirin to prevent heart attack or stroke, talk with your doctor or health care professional.

Do not take medicines such as ibuprofen and naproxen with this medicine. Side effects such as stomach upset, nausea, or ulcers may be more likely to occur. Many medicines available without a prescription should not be taken with this medicine.

This medicine can cause ulcers and bleeding in the stomach and intestines at any time during treatment. Do not smoke cigarettes or drink alcohol. These increase irritation to your stomach and can make it more susceptible to damage from this medicine. Ulcers and bleeding can happen without warning symptoms and can cause death.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:
  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
  • black tarry stools
  • blurred vision
  • breathing problems
  • chest pain
  • general ill feeling or 'flu-like' symptoms
  • high blood pressure
  • right upper belly pain
  • redness, blistering, peeling or loosening of the skin, including inside the mouth
  • slurring of speech
  • stomach pain or cramps
  • sudden weight gain or swelling
  • trouble passing urine or change in the amount of urine
  • unusual bleeding or bruising
  • unusually weak or tired
  • vomit that looks like blood or coffee grounds
  • yellowing of the eyes or skin

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • diarrhea or constipation
  • dizziness, drowsiness
  • gas or heartburn
  • headache
  • nausea, vomiting
  • unusually sensitive to the sun

Where should I keep my medicine?

Keep out of the reach of children.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Page: < Back 1 2
Last Updated: June 25, 2009
Licensed from
Top of page
General Drug Tools
General Drug Tools view all tools
Tools for
Healthy Living
Tools for Healthy Living view all tools
Search Tools
Search Tools view all tools
Insurance Plan Tools
Insurance Plan Tools view all tools