Uploaded May 2026 | Updated September 2026, 2 weeks ago

---

Ouch! How does Ibuprofen "know" where in your body to send its painkilling abilities? And what is inflammation, anyway?
~~~
#EncyclopaediaBritannica
Inspiring curiosity and the joy of learning since 1768.

Web: britannica.com
Facebook: facebook.com/Britannica
Twitter: twitter.com/Britannica
Instagram: instagram.com/Britannica