NSAIDs & Analgesics

NSAIDs: The World's Painkillers, and Their Three Big Dangers

Ibuprofen, naproxen and diclofenac are among the most-used drugs on the planet — brilliant for pain, inflammation and fever. But they carry three serious risks that all trace back to one thing you already understand: blocking the protective COX-1. Learn the three dangers — stomach, kidney, and heart — and you'll use these everyday drugs safely.

COX-2 Inhibitors: The Clever Fix That Created a New Problem

The coxibs were a brilliant idea: if blocking COX-1 causes the stomach damage, design a drug that blocks only the inflammatory COX-2 and spare the stomach. It worked — but the story took a twist that teaches one of pharmacology's most important lessons about unintended consequences.

Paracetamol: The Safest Painkiller — Until You Take Too Much

Paracetamol is the world's most-used painkiller, and it's the odd one out: it relieves pain and fever but has almost none of an NSAID's inflammation-fighting power or its stomach and kidney risks. At normal doses it's remarkably safe — yet in overdose it silently destroys the liver. Understanding this Jekyll-and-Hyde drug is genuinely important.

Aspirin: One Drug, Three Different Jobs, Chosen by the Dose

Aspirin is the oldest NSAID and the most fascinating, because it does something unique: it blocks COX permanently, not temporarily. That one quirk turns a humble painkiller into a life-saving heart drug at low doses — and explains why the same tablet has three completely different uses depending on how much you take.