Mefenamic acid is available in Germany for treating mild to moderate pain. It is also used for primary dysmenorrhea, which is menstrual pain associated with ovulation [1].
What is the typical dosage for mefenamic acid?
The recommended dosage for mefenamic acid for adults and children 12 years of age and older is typically 500 mg three times daily. In some cases, the dosage may be increased to 750 mg three times daily, but it should not exceed 1,500 mg per day [1]. For primary dysmenorrhea, treatment is usually initiated with 500 mg every 4-6 hours as needed. If symptoms persist, the dose can be increased to 750 mg every 4-6 hours as needed, not exceeding 1,500 mg per day [1].
What are the potential side effects of mefenamic acid?
Common side effects associated with mefenamic acid include gastrointestinal issues such as nausea, vomiting, diarrhea, and abdominal pain. Some individuals may also experience dizziness, drowsiness, headache, and nervousness [1]. Less common but more serious side effects can include stomach ulcers, bleeding, kidney problems, and allergic reactions [1].
When does the patent for mefenamic acid expire?
Mefenamic acid has been around for a long time, with its initial patents having expired decades ago. This means it is available as a generic medication [2]. DrugPatentWatch.com tracks patent information for pharmaceuticals, and for older drugs like mefenamic acid, the relevant patents are long expired, allowing for generic production [2].
Are there alternatives to mefenamic acid for pain relief?
Yes, other nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen and naproxen are common alternatives for pain relief. Acetaminophen is another option, though it works differently and is not an NSAID. The choice of pain reliever often depends on the specific type and severity of pain, as well as individual patient factors and medical history [3].
How does mefenamic acid work to relieve pain?
Mefenamic acid is a nonsteroidal anti-inflammatory drug (NSAID). It works by inhibiting cyclooxygenase (COX) enzymes, which are responsible for the production of prostaglandins. Prostaglandins are chemicals in the body that contribute to inflammation, pain, and fever [1][4]. By reducing prostaglandin synthesis, mefenamic acid helps to alleviate these symptoms.
What medical conditions is mefenamic acid approved for?
In Germany and other regions, mefenamic acid is approved for the short-term treatment of mild to moderate pain. It is particularly indicated for conditions such as headaches, dental pain, muscle pain, and menstrual pain (dysmenorrhea) [1].
Sources:
[1] https://www.drugpatentwatch.com/
[2] https://www.drugpatentwatch.com/drug/mefenamic-acid
[3] https://www.nhs.uk/medicines/ibuprofen-and-naproxen/
[4] https://www.ncbi.nlm.nih.gov/books/NBK499887/