As during pregnancy, nursing mothers also need to be careful in taking drugs. The use of several types of drugs need to consult a doctor first, including consumption of mefenamic acid for nursing mothers. The need to consult with a doctor before taking mefenamic acid because there are a variety of risks that need to be considered, including side effects that may occur in nursing mothers. Function and Risk of Mefenamic Acid Side Effects Mefenamic acid is one type of nonsteroidal anti-inflammatory drugs (NSAIDs) that works to relieve pain and reduce inflammation. These drugs, among others, are used to treat arthritis pain, pain after surgery, as well as heavy menstrual bleeding pain. Mefenamic acid inhibits the enzyme cyclo-oxygenase (COX), which produces prostaglandins, which are compounds released by the body and cause pain and inflammation. By blocking the COX enzyme, there will be less prostaglandins produced and less pain. Even so, consuming mefenamic acid might cause side e...