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Mefenamic Acid - Period Pain
Prices from as little as £1.07 a tablet
(Including Private Prescription)
Mefenamic Acid is known as a non-steroidal anti-inflammatory drug (NSAID) and is one of the most effective and popular options to treat period pain (dysmenorrhoea), irrespective of the stage of the menstrual cycle you are in. You can buy Mefenamic Acid online without a prescription today from Medical Specialists® for the relief of period pain. The medication can dramatically ease discomfort and help women get on with their day-to-day life.

- Powerful anti-inflammatory painkiller
- Effective relief from period pain
- Allows you to get on with your day
- Genuine UK medication
What is Mefenamic Acid for?
If you're looking to buy Mefenamic Acid online for period pain safely and securely, then Medical Specialists® can help you.
Most women will experience some form of period pain during their lifetime, however that doesn’t mean there’s nothing you can do to ease the symptoms.
Mefenamic Acid belongs to a group of medicines known as non-steroidal anti-inflammatory drugs (NSAIDs), and is a highly effective drug that treats menstrual pain, including cramps.
Although it can be used as a relief for different types of bodily pain or discomfort, its main use is for period pain. The medication may also be suitable to buy online if your symptoms have not subsided even after trying lifestyle changes or other painkillers such as Ibuprofen or Paracetamol.
How does Mefenamic Acid work?
When you buy period paid treatment online Mefenamic Acid, it works by stopping the action of a substance called cyclo-oxygenase (COX). The substance is linked to the production of different chemicals in the body, some of which are known as prostaglandins.
Prostaglandins are released by the body in response to certain conditions, diseases and injury, resulting in pain, swelling and inflammation. However, Mefenamic Acid blocks the production of these prostaglandins, thereby helping to reduce the pain and inflammation.
It is also believed that Mefenamic Acid could also prevent the action of prostaglandins after they have already been formed.
How long does Mefenamic Acid last for?
The period pain medication Mefenamic Acid usually takes between 2 to 4 hours to take effect and begin easing the discomforting symptoms of period pain. Each 500mg dose of the medication can stop the pain for up to around 8 hours, and some women may be required to take Mefenamic Acid 500mg two or three times a day to achieve all-day relief from period pain. You can buy treatment for period pain after completing a simple online consultation to be assessed by our registered prescribers.
How to take Mefenamic Acid
When you buy Mefenamic Acid tablets online, always read the Patient Information Leaflet (PIL) before taking the medicine. This is a prescription-only treatment and you should always follow the advice of your own doctor.
However, the PIL states that Mefenamic Acid should be taken when the pain begins, with the dose being 500mg three times a day (1500mg in total).
If you forget to take a Mefenamic Acid tablet, the PIL says to take it as soon as you remember, as long as it is not too close to the time of your next dose. Do NOT double a dose to make up for a forgotten one.
What are the possible side effects of Mefenamic Acid?
Side effects are rare, and most people don’t get any. Possible side effects may vary from one person to the next, as with any medication. You should always read the manufacturer’s Patient Information Leaflet (PIL) before taking this or any other medication.
This will give you important instructions on how and when to take the medication, as well as any possible side effects of the drug.

How we package your order
Your medication is placed inside a plain delivery box* for protection, then sealed inside a special tamper-proof Royal Mail envelope before being dispatched from our in-house pharmacy.
- Discreet plain packaging / No mention of medication
- Our minimum sized delivery box* to protect the medication in transit is: W - 18cm, H - 6.5cm, D - 8.5cm
- Royal Mail Tracked 24 or 48 hr (UK addresses)
- Royal Mail Special Delivery Before 1pm (UK addresses)
- Royal Mail Local Collect (UK addresses)
- Royal Mail International Signed For (Overseas addresses)
- Some delivery types will require you to sign for the parcel
- Some delivery types will require you to show Photo ID for the parcel
- Find out more information about delivery types here