What is mefenamic acid, and what makes it an NSAID?
Mefenamic acid is a nonsteroidal anti-inflammatory drug (NSAID) used for pain and menstrual (period-related) cramps [1]. Like other NSAIDs, it works by reducing prostaglandins, which are chemicals that contribute to pain, inflammation, and fever [1].
What authoritative sources say about approved uses?
Authoritative medicine references list mefenamic acid for short-term treatment of pain and for dysmenorrhea (painful menstrual periods) [1].
How is mefenamic acid typically taken (high-level)?
Medicine references describe mefenamic acid as an oral drug taken by mouth, with dosing directed by the product label for the specific indication (pain vs. menstrual cramps) [1]. If you want, share your country (e.g., US, UK, India), and I can point to the exact label wording from an appropriate authority.
What patient questions come up most often?
Common questions include what pain it treats, how long it should be used, and who should avoid it. Authoritative references generally advise caution (or avoidance) in people with NSAID-related risks such as:
- history of NSAID allergy or asthma triggered by NSAIDs
- active or high-risk gastrointestinal bleeding/ulcers
- significant kidney disease
- use with other medicines that raise bleeding risk
These cautions are standard across NSAIDs and are reflected in authoritative drug monographs and labeling [1].
Side effects: what authoritative sources highlight
Authoritative references typically list gastrointestinal effects (like stomach upset and ulcer/bleeding risk) as key NSAID concerns, along with other possible NSAID adverse effects such as dizziness or headache [1].
If you need an “authoritative source” to cite in writing
A widely used authoritative citation for mefenamic acid is:
- Drugs@FDA (if approved in the US) or the relevant national drug register/label for your country
- A major clinical drug monograph (such as FDA-approved labeling where available, or a medical reference used by clinicians) [1]
Tell me your country and whether you need (a) FDA/EMA-style labeling, (b) a clinical guideline citation, or (c) a drug monograph, and I’ll point you to the most appropriate authoritative link.
Sources
[1] https://www.nhs.uk/medicines/mefenamic-acid/