If you’re using it for menstrual cramps, treatment usually lasts no longer than two to three days. It is also used to decrease pain and blood loss from menstrual periods. Your doctor will write the number of refills authorized on your prescription.Not every pharmacy stocks this drug.

: 334. © 2005-2020 Healthline Media a Red Ventures Company. Learn about side effects, warnings, dosage, and more. Mefenamic acid is a member of the anthranilic acid derivatives (or fenamate) class of nonsteroidal anti-inflammatory drugs (NSAIDs), and is used to treat mild to moderate pain. Serious side effects and their symptoms can include the following:Mefenamic acid oral capsule may interact with other medications, herbs, or vitamins you might be taking. Warfarin: Mefenamic acid, a strong CYP2C9 inhibitor, may decrease the metabolism of warfarin. Elsevier, 2009 Whitehouse M. Drugs to Treat Inflammation: A Historical Overview. Meyler's Side Effects of Analgesics and Anti-inflammatory Drugs. The Medical Letter, 56(1450):80-84, September 2014 NSAIDs help reduce pain, inflammation, and fever.It isn’t known how this medication works to decrease pain. Aspirin, ASA; Citric Acid; Sodium Bicarbonate: (Major) Increased adverse gastrointestinal (GI) effects are possible if mefenamic acid is used with salicylates.
Your doctor may take a blood test to monitor your liver and make sure this drug is safe for you. Mefenamic acid is used for the short-term treatment of mild to moderate pain from various conditions. Your dose, form, and how often you take it will depend on:Dosage for people younger than 14 years hasn’t been established.Start this medication when your bleeding and symptoms start.Start this medication when your bleeding and symptoms start.Dosage for people younger than 14 years hasn’t been established.Mefenamic acid may damage your liver. If you’re using it for mild to moderate pain, treatment usually lasts no longer than seven days. You should not need a new prescription for this medication to be refilled.

This means your doctor will need to get approval from your insurance company before your insurance company will pay for the prescription.There are other drugs available to treat your condition. The antiplatelet effect of mefenamic acid may also increase the bleed risk associated with warfarin. Symptoms may include:Don’t take this medication if you’re allergic to aspirin or other NSAIDs. Talk to your doctor about other drug options that may work for you.© 2005-2020 Healthline Media a Red Ventures Company. These effects may contribute to its anti-inflammatory activity.

However, it can cause other side effects.The more common side effects that can occur with mefenamic acid include:Mild side effects may go away within a few days or a couple of weeks. Our website services, content, and products are for informational purposes only. Examples of these drugs include:If you take mefenamic acid with digoxin, it may increase the digoxin in your body to harmful levels.This dosage information is for mefenamic acid oral capsule. Mefenamic acid is used to treat pain and inflammation in There is evidence that supports the use of mefenamic acid for perimenstrual Mefenamic acid is recommended to be taken with food.Mefenamic acid is contraindicated in people who have shown In 2008 the US label was updated with a warning concerning a risk of premature closure of the Interactions are broadly similar to those of other NSAIDs. An interaction is when a substance changes the way a drug works. Healthline Media does not provide medical advice, diagnosis, or treatment. Inhibits synthesis of prostaglandins in body tissues by inhibiting at least 2 cyclooxygenase isoenzymes, cyclooxygenase-1 (COX-1) and -2 (COX-2) May inhibit chemotaxis, may alter lymphocyte activity, decrease proinflammatory cytokine activity, and may inhibit neutrophil aggregation. It may cause the blood vessel that supplies nutrients and oxygen to the fetus to close too early.Mefenamic acid can cause a severe allergic reaction. Eds Rahman A, et al. Some may be better suited for you than others.