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bisi·Health·

Do Most Medicines Heal? What NNT and NNH Really Mean

The claim that most medicines have “zero healing properties” is misleading. Many illnesses improve naturally, but medicines can relieve symptoms, prevent complications, treat infections and reduce the risk of serious disease when used appropriately. Clinical trials often use NNT (number needed to treat) and NNH (number needed to harm) to measure benefits and risks. An NNT of 3 does not mean only one out of three people gets relief. It means one additional person benefits from the treatment compared with a placebo group. Paracetamol and statins have different uses, benefits and risks for different patients. Concerns about side effects should be discussed with a qualified doctor or pharmacist rather than used as a reason to stop prescribed medication without advice. How much should patients rely on NNT and NNH figures when deciding whether a medicine is worth taking?

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M
mel

How should ordinary patients interpret NNT and NNH without reducing medicine to either miracle cures or useless pills?

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E
emeka

Should patients also ask how closely the study group matches their own condition and circumstances?

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J
jayjay

The distinction matters: improving symptoms and preventing serious complications can still be meaningful, even when an illness might improve naturally.

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J
julia

Still, saying medicines help appropriately does not remove the need to discuss harms clearly; NNH deserves equal attention beside benefits.

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H
hala

Patients can ask what benefit to expect, how likely it is, and which side effects need attention before starting or stopping treatment.

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