Ponstel (Mefenamic Acid)

Ponstan

Prescription Required
Brand
Dose Size & Price Qty
250mg
Generic
Dose Size & Price Qty
250mg
500mg
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Fact Table

Fact Table
Formula C15H15NO2
License FDA approved
Bioavailability ~90%
Legal status Prescription Drug
Chemical Name 2-[(2,3-Dimethylphenyl)amino]benzoic acid
Elimination half-life ~2–4 hours
Dosage (Strength) 250mg, 500mg capsules
Pregnancy Consult Doctor (Category C before 30 weeks; Category D after 30 weeks due to risk of premature ductus arteriosus closure)
Brands Ponstel, generic Mefenamic Acid
Protein binding ~90%
PubChem CID 4044
MedlinePlus a681028
ChEBI 6718
ATC code M01AG01
DrugBank DB00784
KEGG D00867
Routes of administration By mouth

Ponstel is a pain reliever medication most often prescribed for arthritis treatment or to treat dysmenorrhea for women having difficulty with menstrual cramps. Mefenamic acid is an anthranilic NSAID non-steroidal anti-inflammatory drug that works to inhibit prostaglandin synthetase receptors COX-1 and COX-2 that contribute to arthritis pain or cramps for women because of menstruation. Ponstel has other pain relief applications and you can buy Ponstel with a prescription here at Canpharm.

Directions

Standard dosage for adults is to take Ponstel 250mg or 500mg up to 3x daily as indicated in your prescription

Take with milk if medication causes upset stomach

Ingredients

The active ingredient in Ponstel is Mefenamic Acid

Cautions

Let your doctor know of any history of heart failure, heart attack, stroke, bleeding problems, kidney or liver problems, stomach ulcers, chronic heartburn, high blood pressure (hypertension), edema, or asthma before starting on Ponstel

Women who are more than 20 weeks into a pregnancy should not use this medication

Women who are breastfeeding should not use this medication

Side effects from Ponstel generic may be more pronounced for older people

Be aware of medication expiry date

Interactions

Negative drug interactions may occur between Ponstel and other Rx or OTC medications, including lorazepam, amoxicillin, clavulanate, diphenhydramine, celecoxib, methylphenidate, duloxetine, pregabalin, metoprolol, esomeprazole, acetaminophen, fluoxetine, methylphenidate, quetiapine, budesonide, formoterol, lisdexamfetamine, bupropion, sertraline, and cetirizine. Let your doctor know of all medications you are currently taking before getting a prescription and proceeding to buy Ponstel online.

Side Effects

Ponstel side effects may occur, and some users may experience upset stomach, stomach pain, heartburn, flatulence, constipation, diarrhea, nausea, vomiting, dizziness, headaches, or skin rash and itching. If side effects are seen you may want to discontinue use and meet with a doctor again to discuss menstrual cramp relief medication alternatives.

Frequently Asked Questions about Ponstel (Mefenamic Acid)


What is Ponstel used for?

Ponstel (mefenamic acid) is a nonsteroidal anti-inflammatory drug (NSAID) used to treat pain, inflammation, and discomfort associated with conditions like arthritis, menstrual cramps, and muscle pain.


How does Ponstel work?

Ponstel works by inhibiting the enzymes that produce prostaglandins, chemicals in the body that cause inflammation, pain, and fever.


How should Ponstel be taken?

Ponstel is typically taken orally with food to minimize stomach irritation, and the dosage is based on the condition being treated as prescribed by your doctor.


What are the side effects of Ponstel?

Common side effects include stomach upset, nausea, dizziness, headache, and diarrhea. Serious side effects may include gastrointestinal bleeding or kidney problems.


How long does it take for Ponstel to work?

Ponstel usually starts to relieve pain and inflammation within 30 minutes to 1 hour of taking it, with full effects typically seen within 1–2 hours.


Who should not take Ponstel?

Ponstel should not be used by individuals with a history of gastrointestinal bleeding, peptic ulcers, or hypersensitivity to mefenamic acid or other NSAIDs.


Can Ponstel cause stomach issues?

Yes, Ponstel can cause stomach irritation, ulcers, or bleeding, especially with long-term use. It should be taken with food to reduce the risk of these side effects.


How should Ponstel be stored?

Store Ponstel at room temperature, away from moisture and heat, and keep it out of reach of children.


Can Ponstel be used for long-term pain management?

Ponstel is generally intended for short-term use. Long-term use should be monitored by a healthcare provider due to the risk of gastrointestinal and kidney complications.


Can I drink alcohol while taking Ponstel?

It is advisable to limit alcohol intake while using Ponstel, as alcohol can increase the risk of stomach bleeding and other gastrointestinal issues.

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