Always consult your doctor or pharmacist before taking mefenamic acid.
If your condition does not improve or becomes worse, then call your doctor.
Driving or operating machinery should be avoided, as it does may cause dizziness or drowsiness.
Do NOT use mefenamic acid if:
- You are allergic to any ingredient in mefenamic acid;
- You have had a severe allergic reaction (e.g., severe rash, hives, trouble breathing, growths in the nose, dizziness) to aspirin or a nonsteroidal anti-inflammatory drug (NSAID) (e.g., ibuprofen, celecoxib);
- You have recently had or will be having bypass heart surgery
- You have kidney problems, ulcers, or inflammation of the stomach or bowel;
- You are in the last 3 months of pregnancy.
Use of mefenamic acid during pregnancy or breast feeding is not recommended as is may harm the fetus. Do not use mefenamic acid in the last three months of pregnancy. Consult your doctor or health care professional before taking it.
Refer to your doctor or pharmacist for guidelines on dosage. Do not exceed what they advise.
Some medicines may interact with mefenamic acid. Tell your health care provider if you are taking any other medicines, especially any of the following:
- Anticoagulants (eg, warfarin), aspirin, corticosteroids (eg, prednisone), heparin, or selective serotonin reuptake inhibitors Magnesium hydroxide (eg, antacids) or probenecid because they may increase the risk of mefenamic acid’s side effects
- Cyclosporine, lithium, methotrexate, quinolones (eg, ciprofloxacin), or sulfonylureas (eg, glipizide)
- Angiotensin-converting enzyme (ACE) inhibitors (eg, enalapril) or diuretics (eg, furosemide, hydrochlorothiazide with mefenamic acid.