Mefenamic acid Dosage, Interactions, Side Effects, How to Use

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correct dosage of taking mefenamic acid What is the dosage i should take to get relief from my toothache? I have mitral valve prolapse, is it safe for me to take mefenamic acid? by sheila in Cebu City,Philippines, 04/27/2007

Headache & fever while taking Mefenamic acid Sir, I am 26 yr old male ,& suffering from serve headache & fever. presently i am taking a combination of MEFENAMIC ACID & PARACETAMOL, as prescribed by doctor. i am taking 3 tab. a day, but as soon as the effect of 1st. dose is over headache & fever ... by manish in uttaranchal,india, 05/25/2006

Mefenamic Acid in children. I have two daughters, aged 6 and 3. Whenever they get fever, their pediatritian prescribes mefenamic acid syrup (Meftal-P) 100mg per 5 ml. If the fever is high, we were told to give 10 ml twice daily for the elder child and 5 ml twice daily for the yo... by Srikanth H.R. in Hyderabad, India., 02/02/2006

Why can't children take Mefenamic Acid? Why children below 14 years old could not take this medicine? What is the effects if they took it? Regards, Lilis by Lilis in Jakarta, Indonesia, 11/07/2005

Mefenamic acid
Mefenamic acid (Ponstan)
Mefenamic Acid
(meh-fen- NAM-ick AH-sid)
Pregnancy Category: C Apo-Mefenamic Nu-Mefenamic PMS-Mefenamic Acid Ponstan Ponstel (Rx)

Classification: Nonsteroidal, anti-inflammatory drug

See Also: See also Nonsteroidal Anti-Inflammatory Drugs .

Action/Kinetics: Inhibits prostaglandin synthesis. Is an anti-inflammatory, antipyretic, and analgesic. Peak plasma levels: 2-4 hr; t 1/2: 2-4 hr; duration: 4-6 hr. Slowly absorbed from the GI tract, metabolized by the liver, and excreted in the urine and feces.

Uses: Short-term relief ( < 1 week) of mild to moderate pain (e.g., pain associated with tooth extraction and musculoskeletal disorders). Primary dysmenorrhea. Investigational: PMS, sunburn.

Contraindications: Ulceration or chronic inflammation of the GI tract, pregnancy or possibility thereof, children under 14, and hypersensitivity to the drug.

Special Concerns: Dosage has not been established in children less than 14 years of age. Use with caution in clients with impaired renal or hepatic function, asthma, or clients on anticoagulant therapy.

Additional Side Effects: Autoimmune hemolytic anemia if used more than 12 months. Diarrhea may be significant. Rash (maculopapular type).

Laboratory Test Alterations: False + test for urinary bile using diazo tablets.

Drug Interactions: Anticoagulants / Hypoprothrombinemia R/T plasma protein binding Insulin / Insulin requirement Lithium / Lithium plasma levels

How Supplied: Capsule: 250 mg

Dosage
?Capsules Analgesia, primary dysmenorrhea.
Adults and children over 14 years of age, initial: 500 mg; then, 250 mg q 6 hr.