What are the most effective medicines for treating period cramps?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Naproxen and ibuprofen are among the most effective over-the-counter medicines for period cramps because they lower menstrual prostaglandins—the compounds responsible for uterine contractions and pain. Acetaminophen (paracetamol) is another option that can help relieve mild to moderate menstrual discomfort, though it doesn't target prostaglandins directly.

That said, not all period pain is the same, and severe or worsening cramps can sometimes signal underlying conditions like endometriosis, fibroids, or PCOS. Before relying on pain relievers alone, it's smart to understand what's actually driving your symptoms. Take a free, instant, online symptom check to get personalized insight and clear guidance on your next steps.

Reviewed for medical accuracy: 07/14/2026

Important Next Steps

Discover likely causes of period cramps Learn if period cramps need care See if cramps could mean endometriosis Find OTC relief for period cramps Find a doctor for menstrual pain Discover home remedies for period cramps Understand your cramps with a symptom check

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Explanation

Period cramps, also known as dysmenorrhea, can be very painful for many people. Naproxen is effective in treating period cramps. It works by reducing the levels of prostaglandins, which are chemicals in the body that cause the uterus to contract and lead to pain during menstruation. Ibuprofen is another treatment that works similarly to treat period cramps. Another over-the-counter option is acetaminophen or paracetamol, which can also help relieve pain.

How Naproxen and Ibuprofen Work:

Naproxen and ibuprofen are two types of nonsteroidal anti-inflammatory drugs (NSAIDs).
They help lower the production of prostaglandins, which are higher during menstruation and cause cramps.

Overall, naproxen, ibuprofen, acetaminophen and paracetamol are well-studied and commonly used options for managing period cramps, making it easier for those affected to go about their daily activities with less discomfort. If these over-the-counter pain relief methods do not alleviate the pain, you can use our free symptom checker to better understand what might be causing your symptoms, and a healthcare provider can offer personalized medical advice including other possible treatment options.

(References)

Daniels SE, Paredes-Diaz A, An R, Centofanti R, & Tajaddini A. (2019). a double-blind, randomized, single-dose, crossover study. Current medical research and opinion, 31397597.
Chan WY, Fuchs F, & Powell AM. (1983). Effects of naproxen sodium on menstrual prostaglandins .... Obstetrics and gynecology, 6571974.
Christelle K, Norhayati MN, & Jaafar SH. (2022). Interventions to prevent or treat heavy menstrual bleeding .... The Cochrane database of systematic reviews, 36017945.

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