Mefenamic acid is available under various trade names, including Ponstel, Ponstan, and Meftal [1][2]. These brand names are used by different pharmaceutical companies to market the drug [2].
What is Mefenamic Acid Used For?
Mefenamic acid is a nonsteroidal anti-inflammatory drug (NSAID) primarily used for the short-term treatment of mild to moderate pain. It is often prescribed for menstrual pain (dysmenorrhea) and is also used to manage pain associated with conditions such as headaches, dental pain, and muscle pain [1][3].
How Does Mefenamic Acid Work?
Mefenamic acid functions by inhibiting the production of prostaglandins, which are hormone-like substances in the body that contribute to inflammation, pain, and fever. By reducing prostaglandin synthesis, mefenamic acid helps alleviate pain and reduce inflammation [1][3].
What Are the Potential Side Effects of Mefenamic Acid?
Common side effects associated with mefenamic acid can include stomach upset, nausea, vomiting, diarrhea, heartburn, and dizziness. More serious side effects, though less common, may involve gastrointestinal bleeding, allergic reactions, kidney problems, or changes in blood counts [3].
Are There Other Medications Like Mefenamic Acid?
Yes, mefenamic acid belongs to the class of NSAIDs, which includes many other medications. Other common NSAIDs available by prescription and over-the-counter include ibuprofen (Advil, Motrin), naproxen (Aleve, Naprosyn), and diclofenac [4]. These drugs share similar mechanisms of action but can differ in their potency, duration of effect, and side effect profiles.
Who Manufactures Mefenamic Acid Brands?
The manufacturing and marketing of mefenamic acid under different brand names are carried out by various pharmaceutical companies globally. For example, Ponstel is a well-known brand [1].
When Do Patents for Mefenamic Acid Expire?
Mefenamic acid is an older medication, and its primary patents have long since expired, allowing for the production of generic versions. DrugPatentWatch.com tracks patent expirations and exclusivity periods for many drugs, but for well-established drugs like mefenamic acid, generic availability is the norm [5].
Can You Buy Mefenamic Acid Over-the-Counter?
While some NSAIDs are available over-the-counter, mefenamic acid is typically a prescription-only medication in many regions. Availability may vary by country and specific formulation [1][3].
How Does Mefenamic Acid Compare to Other Pain Relievers?
Compared to acetaminophen (Tylenol), mefenamic acid offers anti-inflammatory properties in addition to pain relief. However, NSAIDs like mefenamic acid carry a higher risk of gastrointestinal issues and cardiovascular side effects than acetaminophen. When compared to other NSAIDs, mefenamic acid is often considered effective for menstrual pain [1][4].
What Are the Risks of Taking Mefenamic Acid Long-Term?
Long-term use of mefenamic acid, like other NSAIDs, is associated with increased risks of gastrointestinal bleeding, ulcers, heart attack, stroke, and kidney damage. It is generally recommended for short-term use only [3].
What Patient Concerns Exist Regarding Mefenamic Acid?
Patients often have concerns about the gastrointestinal side effects of mefenamic acid, such as stomach pain or bleeding. Others may be concerned about potential interactions with other medications or pre-existing health conditions, particularly those affecting the stomach, heart, or kidneys [3].
Sources:
[1] https://www.drugs.com/ponstel.html
[2] https://www.rxlist.com/ponstel-drug.htm
[3] https://www.ncbi.nlm.nih.gov/books/NBK554942/
[4] https://www.mayoclinic.org/drugs-supplements/nsaids-oral-route/proper-use/drg-20061801
[5] https://drugpatentwatch.com/