Paracetamol (also called acetaminophen) is one of the most common medicines you’ll see on pharmacy shelves. It’s loved because it can lower fever and ease mild‑to‑moderate pain without the stomach upset that some other painkillers cause. Whether you need it for a headache, a sore throat, or a child’s fever, knowing the right way to use it makes a big difference.
Paracetamol blocks a chemical in the brain called prostaglandin, which is responsible for sending pain signals and raising body temperature. By reducing those signals, you feel less pain and your fever drops. It works best for headaches, toothaches, menstrual cramps, backaches, and everyday aches that aren’t tied to inflammation. If you have swelling or an inflamed joint, a non‑steroidal anti‑inflammatory drug (NSAID) might be a better choice.
Most doctors recommend taking paracetamol as soon as you notice pain or fever, rather than waiting for the discomfort to get worse. It’s also safe for short‑term use in most healthy adults, as long as you stick to the recommended dose.
For adults and teens (over 12 years), the typical dose is 500 mg to 1000 mg every 4‑6 hours. Never exceed 4000 mg in a 24‑hour period. If you’re using the regular 500 mg tablets, that means a maximum of eight tablets a day.
Children’s doses depend on weight, not age. A common rule is 10‑15 mg per kilogram of body weight every 4‑6 hours, with a daily limit of 60 mg/kg. Always use the measuring device that comes with the paediatric syrup—spoons can be inaccurate.
Here are a few safety habits you should adopt:
Common drug interactions include warfarin (blood thinner), certain anti‑seizure meds, and some HIV medicines. These don’t always mean you have to stop using paracetamol, but they do require a doctor’s advice.
When should you see a doctor? If you need paracetamol for more than three days in a row, if your fever stays above 102 °F (38.9 °C) despite treatment, or if you notice symptoms like yellowing of the skin or dark urine—these could signal liver trouble.
In short, paracetamol is a reliable, low‑risk option for everyday aches and fevers when you respect the dosage limits and stay aware of other medicines you’re taking. Keep the bottle handy, read the label, and you’ll have a handy tool for quick relief without unnecessary risk.
Acetaminophen is one of the world's most popular pain relievers, but using it safely demands more attention than you might think. This article breaks down how acetaminophen works, tips for proper dosing, common mistakes to avoid, and why some warnings really matter. Packed with key facts and everyday advice, it's your real-world guide to making the most of this medicine without risking your health.