Mefenamic acid is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve mild to moderate pain [1]. It is typically available in a 250mg dosage [2].
How does mefenamic acid work to relieve pain?
Mefenamic acid functions by inhibiting the production of prostaglandins, which are hormone-like substances that play a role in inflammation, pain, and fever [1][3]. By reducing prostaglandin levels, it helps to alleviate these symptoms [1].
What conditions is mefenamic acid used to treat?
Mefenamic acid is prescribed for various conditions involving mild to moderate pain, including menstrual pain (dysmenorrhea) and pain associated with dental procedures or minor injuries [2][4].
What are the common side effects of mefenamic acid?
Common side effects of mefenamic acid can include stomach upset, nausea, vomiting, diarrhea, constipation, and dizziness [1]. In some cases, more serious side effects such as gastrointestinal bleeding or kidney problems can occur [1].
How does mefenamic acid compare to other NSAIDs?
Mefenamic acid is one of many NSAIDs available, which also include ibuprofen and naproxen. While they all work similarly by blocking prostaglandin synthesis, individual responses and side effect profiles can vary between different NSAIDs [1][5].
When does the patent for mefenamic acid expire?
Mefenamic acid is an older drug, and its original patents have long expired [6]. This means that generic versions have been available for many years.
Can I buy mefenamic acid without a prescription?
Availability of mefenamic acid without a prescription can vary by region and specific product formulation. In many places, it is available over-the-counter in lower doses, while higher doses may require a prescription [2].
What is the typical cost of mefenamic acid?
As a widely available generic medication, mefenamic acid is generally considered affordable. The exact cost can depend on the brand, dosage, quantity, and pharmacy [2].
Sources:
[1] https://www.nhs.uk/medicines/mefenamic-acid/
[2] https://www.webmd.com/drugs/2/drug-15697/mefenamic-acid-oral/details
[3] https://www.medicines.org.uk/emc/medicine/1366
[4] https://www.drugs.com/mefenamic-acid.html
[5] https://www.ncbi.nlm.nih.gov/books/NBK551558/
[6] https://drugpatentwatch.com/