Mefenamic Acid
Mefenamic acid is a painkiller than can help to provide relief from painful and heavy periods.
Mefenamic acid relieves painful and heavy periods by blocking the production of hormones called prostaglandins, which can cause your womb to contract painfully if your body produces too much.
Start taking mefenamic acid tablets on the first day of your period, and continue taking them until the pain becomes manageable (usually four days). You take 500mg of mefenamic acid, up to three times a day.
It’s quick and easy to order mefenamic acid through Superdrug Online Doctor. To order mefenamic acid online, all you need to do is fill in a brief medical questionnaire. After you’ve placed your order, one of our doctors will review your questionnaire and approve appropriate treatment.
To place an order, fill in a brief questionnaire. One of our doctors will review your order and prescribe a suitable treatment. You will only be charged if treatment is prescribed.
28 tablets | from £28.00 |
56 tablets | from £40.00 |
112 tablets | from £66.00 |
Prices include prescription and delivery.


In a hurry? Choose Click and Collect and pick up your order after just 2 hours from a Superdrug Pharmacy.
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