It is a damn shame bordering conspiracy that metamizole (https://en.wikipedia.org/wiki/Metamizole, known as Analgin in eastern Europe and the Balkans, apparently also India) is not more widely available in the west. It's literally a wonder drug, the only non-narcotic (hence non-addictive) that actually relieves serious pain (including post-op) pain in my experience.

Since I've had a fair share of it in my life so far (more than 1kg of it so far, in total), and I investigated the disparaging studies and they are definitely not convincing at all; more recent ones somewhat absolve it (check the Wikipedia page).

I've never had any side effects from it, and I don't know anyone who did, unlike for any other painkiller (diclofenac, ketoprofen, ibuprofen, acetaminophen / paracetamol).

It is a medicine where I'm almost 100% sure the studies against it are intentional sabotage by pharma companies, and the vigor and persistence this is done with is really telling (lots of doctors and pharmacists in my extended family, including in regulatory bodies). The campaign against it never ends.