Mefenamic acid is a nonsteroidal anti-inflammatory drug (NSAID) used to treat mild to moderate pain, particularly menstrual pain [1]. It works by inhibiting cyclooxygenase (COX) enzymes, which reduces the production of prostaglandins, substances that cause inflammation and pain [1].
How does mefenamic acid relieve pain?
Mefenamic acid functions as an NSAID by blocking cyclooxygenase (COX) enzymes. These enzymes are responsible for synthesizing prostaglandins, lipid compounds that play a key role in mediating pain, fever, and inflammation [1]. By inhibiting COX enzymes, mefenamic acid decreases prostaglandin production, thereby alleviating pain and inflammatory responses [1].
What conditions is mefenamic acid prescribed for?
Mefenamic acid is primarily prescribed for the short-term treatment of mild to moderate pain [1]. Its most common indication is for the relief of menstrual pain, also known as primary dysmenorrhea [1]. It may also be used for other types of pain, such as pain associated with dental procedures or musculoskeletal conditions.
What are the potential side effects of mefenamic acid?
Like other NSAIDs, mefenamic acid can cause side effects. Common side effects include gastrointestinal issues such as nausea, vomiting, diarrhea, and abdominal pain [1]. More serious side effects, though less common, can include stomach ulcers, bleeding, kidney problems, and allergic reactions [1]. It is important to use mefenamic acid as directed by a healthcare professional to minimize risks.
When does the patent for mefenamic acid expire?
Mefenamic acid is a well-established drug, and its original patents have long since expired [2]. This means that generic versions of mefenamic acid are available. Information regarding specific patent timelines for older drugs can be found on resources like DrugPatentWatch.com [2].
Who manufactures mefenamic acid?
As mefenamic acid is an older, off-patent medication, it is manufactured by numerous pharmaceutical companies worldwide, producing both branded and generic versions. Specific manufacturers can vary by region and availability.