Be sure to tell your doctor about all medications, vitamins, or herbs you’re taking. Mefenamic acid is also used to treat menstrual pain. This goes back to normal when mefenamic acid is stopped. Blood and urine tests may be needed to check for unwanted effects. Follow all directions on your prescription label. Mefenamic acid should not be used for longer than 7 days. Other drugs may interact with mefenamic acid, including prescription and over-the-counter medicines, Your pharmacist can provide more information about mefenamic acid.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.Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Keep from freezing.Do not keep outdated medicine or medicine no longer needed.Ask your healthcare professional how you should dispose of any medicine you do not use.It is very important that your doctor check your progress at regular visits. Mefenamic acid is a prescription drug. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. Description and Brand Names. This is more likely if you have had a stomach ulcer in the past, if you smoke or drink alcohol regularly, are over 60 years of age, are in poor health, or using certain other medicines (such as a steroid or a blood thinner). Safety and efficacy have not been established. If this medicine upsets your stomach, take it with food or milk. This means your doctor will need to get approval from your insurance company before your insurance company will pay for the prescription.There are other drugs available to treat your condition. Your doctor may occasionally change your dose to make sure you get the best results. Check with your doctor immediately if you notice any of these warning signs. However, it can cause other side effects.The more common side effects that can occur with mefenamic acid include:Mild side effects may go away within a few days or a couple of weeks. "Mayo," "Mayo Clinic," "MayoClinic.org," "Mayo Clinic Healthy Living," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research.© 1998-2020 Mayo Foundation for Medical Education and Research (MFMER). All rights reserved. This medicine may cause bleeding in your stomach or intestines.
Using this medicine during the later part of a pregnancy can harm your unborn baby. If you use this medicine long-term, you may need frequent medical tests.Mefenamic acid can cause unusual results with certain medical tests. Make sure any doctor or dentist who treats you knows that you are using this medicine. eMedicineHealth does not provide medical advice, diagnosis or treatment. Call 911 if your symptoms feel life-threatening or if you think you’re experiencing a medical emergency. These side effects may go away during treatment as your body adjusts to the medicine.
Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Mefenamic acid works by reducing hormones that cause inflammation and pain in the body.Mefenamic acid is used short-term (7 days or less) to treat mild to moderate pain in adults and children who are at least 14 years old. Mayo Clinic is a nonprofit organization and proceeds from Web advertising help support our mission. To do so may increase the chance for side effects. Ask your doctor or pharmacist if you have any questions.Take the missed dose as soon as you remember. Do not take other medicines unless they have been discussed with your doctor. Drug class (es): Nonsteroidal anti-inflammatory drugs. Mefenamic acid is generic and is available worldwide under many brand names. You may report side effects to FDA at 1-800-FDA-1088.You should not take mefenamic acid if you already have stomach bleeding or an active ulcer, or a bowel disorder such as Do not use this medicine just before or after heart bypass surgery (coronary artery bypass graft, or CABG).You should not use mefenamic acid if you are allergic to it, or if you have:To make sure mefenamic acid is safe for you, tell your doctor if you have:Mefenamic acid is not approved for use by anyone younger than 14 years old. In the US, wholesale price of a week's supply of generic mefenamic acid has been quoted as $426.90 in 2014.