Mefenamic acid
Generic name: Mefenamic Acid
Brand names: Ponstel
Dosage form: oral capsule (250 mg)
Drug class:
Nonsteroidal anti-inflammatory drugs
Usage of Mefenamic acid
Mefenamic acid is a nonsteroidal anti-inflammatory drug (NSAID) that 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. Mefenamic acid is also used to treat menstrual pain.
Mefenamic acid may also be used for purposes not listed in this medication guide.
Mefenamic acid side effects
Get emergency medical help if you have signs of an allergic reaction (sneezing, runny or stuffy nose, hives, wheezing or trouble breathing, swelling in your face or throat) or a severe skin reaction (fever, sore throat, burning eyes, skin pain, red or purple skin rash with blistering and peeling).
Get emergency medical help if you have signs of a heart attack or stroke: chest pain spreading to your jaw or shoulder, sudden numbness or weakness on one side of the body, slurred speech, feeling short of breath.
Stop using mefenamic acid and seek medical treatment if you have a serious drug reaction that can affect many parts of your body. Symptoms may include skin rash, fever, swollen glands, muscle aches, severe weakness, unusual bruising, or yellowing of your skin or eyes.
Mefenamic acid may cause serious side effects. Stop using mefenamic acid and call your doctor at once if you have:
Common side effects of mefenamic acid may include:
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Before taking Mefenamic acid
Mefenamic acid can increase your risk of fatal heart attack or stroke, even if you don't have any risk factors. Do not use this medicine just before or after heart bypass surgery (coronary artery bypass graft, or CABG).
Mefenamic acid may also cause stomach or intestinal bleeding, which can be fatal. These conditions can occur without warning while you are using mefenamic acid, especially in older adults.
You should not use mefenamic acid if you are allergic to it, or if you have:
Tell your doctor if you have ever had:
If you are pregnant, you should not take mefenamic acid unless your doctor tells you to. Taking an NSAID during the last 20 weeks of pregnancy can cause serious heart or kidney problems in the unborn baby and possible complications with your pregnancy.
Tell your doctor if you are breastfeeding.
Mefenamic acid is not approved for use by anyone younger than 14 years old.
Relate drugs
- Addaprin
- Advil
- Advil Migraine
- Aflaxen
- A-G Profen
- Aleve
- Aleve Arthritis
- Aleve Back and Muscle Pain
- Aleve Easy Open Arthritis
- Aleve Liquid Gels
- Anaprox
- Anaprox-DS
- Anjeso
- Ansaid
- Arthrotec
- Clinoril
- Bufen
- Caldolor
- Cambia
- Cataflam
- Children's Advil
- Children's Ibuprofen Berry
- Children's Motrin
- Daypro
- Diclofenac
- Diclofenac (Intravenous)
- Diclofenac (Oral)
- Diclofenac and misoprostol
- Duexis
- Dyloject
- EC-Naprosyn
- Esomeprazole and naproxen
- Etodolac
- Famotidine and ibuprofen
- Feldene
- Fenoprofen
- Flanax
- Flurbiprofen
- Flurbiprofen (Oral)
- Genpril
- Haltran
- Ibu
- Ibu-2
- Ibu-200
- Ibu-4
- Ibu-6
- Ibu-8
- Ibu-Tab
- Ibuprofen
- Ibuprofen (Intravenous)
- Ibuprofen (Oral)
- Ibuprofen and famotidine
- Ibuprofen injection
- Ibuprofen lysine
- Ibuprohm
- Indocin
- Indocin (Indomethacin Intravenous)
- Indocin (Indomethacin Oral)
- Indocin (Indomethacin Rectal)
- Indocin SR
- Indomethacin
- Indomethacin (Intravenous)
- Indomethacin (Oral)
- Indomethacin (Rectal)
- I-Prin
- Ketoprofen
- Ketorolac nasal
- Ketorolac oral/injection
- Lodine
- Lodine XL
- Lofena
- Meclofenamate
- Mefenamic acid
- Meloxicam
- Meloxicam (Intravenous)
- Meloxicam (Oral)
- Midol
- Midol Extended Relief
- Midol IB
- Mobic
- Motrin Childrens
- Motrin IB
- Motrin IB Migraine
- Motrin Infant Drops
- Motrin Migraine Pain
- Nabumetone
- Nalfon
- Nalfon 200
- Naprelan
- Naprelan 500
- Naprelan Dose Card
- Naprosyn
- Naproxen
- Naproxen and esomeprazole
- NeoProfen
- Neoprofen (Ibuprofen Intravenous)
- Neoprofen (Ibuprofen lysine Intravenous)
- Nuprin
- Orudis
- Orudis KT
- Oruvail
- Oxaprozin
- Piroxicam
- Ponstel
- Prevacid Naprapac
- Proprinal
- Qmiiz
- Q-Profen
- Relafen
- Smart Sense Children's Ibuprofen
- Sprix Nasal Spray
- Sulindac
- Tivorbex
- Tolectin 600
- Tolectin DS
- Tolmetin
- Toradol
- Toradol IV/IM
- Vimovo
- Vivlodex
- Voltaren
- Voltaren (Diclofenac Oral)
- Voltaren-XR
- Wal-Profen
- Zipsor
- Zorvolex
How to use Mefenamic acid
Usual Adult Dose for Pain:
Initial dose: 500 mg orally onceFollowing initial dose: 250 mg orally every 6 hours as neededDuration of therapy: Usually not to exceed 1 weekUse: For the relief of acute pain
Usual Adult Dose for Dysmenorrhea:
Initial dose: 500 mg orally onceFollowing initial dose: 250 mg orally every 6 hours as neededDuration of therapy: 2 to 3 daysComments:-Treatment should begin at the onset of bleeding and associated symptoms.Use: For the treatment of primary dysmenorrhea
Usual Pediatric Dose for Pain:
14 years or older:-Initial dose: 500 mg orally once-Following initial dose: 250 mg orally every 6 hours as needed-Duration of therapy: Usually not to exceed 1 weekUse: For the relief of acute pain
Usual Pediatric Dose for Dysmenorrhea:
14 years or older:-Initial dose: 500 mg orally once-Following initial dose: 250 mg orally every 6 hours as needed-Duration of therapy: 2 to 3 daysComments:-Treatment should begin at the onset of bleeding and associated symptoms.Use: For the treatment of primary dysmenorrhea
Warnings
Mefenamic acid can increase your risk of fatal heart attack or stroke. Do not use mefenamic acid just before or after heart bypass surgery (coronary artery bypass graft, or CABG). Mefenamic acid may also cause stomach or intestinal bleeding, which can be fatal.
What other drugs will affect Mefenamic acid
Ask your doctor before using mefenamic acid if you take an antidepressant. Taking certain antidepressants with an NSAID may cause you to bruise or bleed easily.
Tell your doctor about all your other medicines, especially:
This list is not complete. Other drugs may affect mefenamic acid, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.
Disclaimer
Every effort has been made to ensure that the information provided by Drugslib.com is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Drugslib.com information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Drugslib.com does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Drugslib.com's drug information does not endorse drugs, diagnose patients or recommend therapy. Drugslib.com's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners.
The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Drugslib.com does not assume any responsibility for any aspect of healthcare administered with the aid of information Drugslib.com provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.
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