About Period PainPeriod pain (dysmenorrhoea) is cramping in the lower abdomen before or during a period. It is very common and usually caused by prostaglandins that make the womb contract.Pain may spread to the back and thighs and can come with nausea, loose stools, headache or tiredness. Some women also have heavy menstrual bleeding.Medicines used for Period PainAnti-inflammatory painkillers such as mefenamic acid, ibuprofen, naproxen and diclofenac are often most effective, especially when started at the first sign of pain. Paracetamol, a hot water bottle and light exercise also help. Mefenamic acid and tranexamic acid can reduce heavy bleeding.When to see a doctorSee a doctor if pain is severe, has recently got worse, comes with very heavy or irregular bleeding, pain during sex, or fever, as these can be signs of conditions such as endometriosis or fibroids.This page is for general information only. Many of these medicines need a prescription; please use them only on the advice of a doctor or pharmacist, who can choose the right medicine and dose for you.
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