Mefenamic Acid (Ponstel)
$0.32
Ponstel contains Mefenamic acid and relieves period pain, headaches and mild to moderate pain and inflammation.
Drug Information
9 reviews for Mefenamic Acid (Ponstel)
Ponstel contains Mefenamic Acid.
Mefenamic acid is an anti-inflammatory painkiller. It is especially used for period pain and heavy periods, and for mild to moderate pain.
What is it used for?
- Period pain
- Heavy periods
- Mild to moderate pain, such as headache and toothache
How does it work?
Mefenamic acid blocks the chemicals (prostaglandins) that cause pain and make the womb contract strongly during periods.
This information is written in simple words to help you understand this product. It does not replace advice from your doctor or pharmacist.
Read these points before you start. If any of them apply to you, talk to your doctor or pharmacist first.
- Do not take it if you have ever had a stomach ulcer or bleeding, or if you are allergic to aspirin or other anti-inflammatory painkillers (for example, if they made your asthma worse).
- Do not take it if you have severe heart failure, severe kidney or liver disease, or in the last 3 months of pregnancy.
- Anti-inflammatory painkillers can slightly raise the risk of heart attack and stroke, especially at high doses or with long use. Tell your doctor if you have heart disease, high blood pressure, high cholesterol, diabetes or smoke.
- Do not take it with other anti-inflammatory painkillers (such as ibuprofen, naproxen or high-dose aspirin).
- Tell your doctor if you take blood thinners, steroids, SSRI antidepressants, lithium, methotrexate, water tablets or blood pressure medicines.
- Use the lowest dose for the shortest time needed.
- Older people are more likely to have stomach bleeding and kidney problems.
- Stop taking it if you get diarrhoea or a rash.
- Do not take it for more than 7 days at a time.
- Tell your doctor or pharmacist about every other medicine, vitamin or herbal product you use.
- Keep this product out of the reach and sight of children.
Like all medicines, Ponstel can cause side effects, but not everybody gets them.
Common side effects
- Indigestion, heartburn or stomach pain
- Feeling sick
- Diarrhoea or constipation
- Headache or dizziness
These are usually mild and often get better as your body gets used to it. Tell your doctor if they bother you or do not go away.
Stop using it and get medical help straight away if you notice:
- Black, tarry stools, or vomiting blood or what looks like coffee grounds (stomach bleeding)
- Chest pain, or sudden weakness, numbness or trouble speaking
- Wheezing or trouble breathing
- Swelling of the face, lips or throat, or a severe rash with blisters
- Passing much less urine, or swelling of the legs
This is not a complete list. If you notice anything unusual, ask your doctor or pharmacist.
- Take 500 mg three times a day with or after food.
- For period pain, start when the pain or bleeding begins and take for 2 to 3 days.
- Swallow the capsule or tablet with water.
- Do not take it for more than 7 days in a row.
If you miss a dose: If you take it regularly, take it as soon as you remember, unless it is nearly time for your next dose. Never take two doses at once.
If you use too much: Contact your doctor, a poison control centre or your local emergency number straight away, even if you feel fine. Take the pack with you.
How to store it: Keep it in its original pack at room temperature (below 25°C / 77°F), away from heat, damp and direct sunlight. Do not use it after the expiry date.
- QShould I take Ponstel with food?
- A
Yes. Taking it with or after food helps protect your stomach.
- QCan I take Ponstel with paracetamol (acetaminophen)?
- A
Yes, they can usually be taken together, as they work in different ways. Do not take it with other anti-inflammatory painkillers.
- QCan I drink alcohol with Ponstel?
- A
It is best to limit alcohol, as it raises the risk of stomach bleeding.

James Mitchell –
I got my Ponstel here and the experience was easy. What arrived was just as listed on the site. Plain, tidy packaging and everything inside was in order. Nothing negative to say, it was a good one.
Yuki Jones –
A friend told me about this site, so I gave it a go. It was cheaper than my usual place, and the service was just as good. The support staff were quick to respond and easy to deal with. It was a pleasant experience and I am glad I chose this site.
Alexander Adebayo –
Prices here are easy on the pocket. The parcel looked untouched when it got to me. I was not left waiting long, the delivery was quick. Easy to order Ponstel here, and I will do it again.
Stefan Farah –
I decided to try this site and it turned out well. The team kept me updated on my order status. Highly satisfied with the service.
Lei Tesfaye –
I wanted Ponstel and this site made it simple to order. I got an order confirmation right away and updates after that. Checkout was simple and I never felt lost on the site.
Jorge Martin –
I just received my order and wanted to leave a quick note. The order form was short and easy to fill in. Packaging was clean and professional. The delivery took about as long as I was told.
Diego Bailey –
The parcel arrived a day or two sooner than I figured. The Mefenamic Acid arrived sealed and the box was in good shape. The product matched the description on the page.
Emeka Mahmoud –
I used this site for my latest order and had no problems. No surprise fees at checkout, which I appreciated. I liked that the site did not make things complicated. Simple, quick and reliable.
Anika Jones –
Just got my order and everything went well. I found the cost to be better than what I saw elsewhere. And the seals were intact and everything looked fresh.