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Insomnia: Large study shows how well different drugs work

Melatonin, which is licensed in the UK to treat insomnia in adults over the age of 55, did not show overall material benefits, according to the meta-analysis published in the Lancet.1 There was also insufficient evidence to support the prescription of benzodiazepines and zolpidem in the long term treatment of insomnia, found the research, which was funded by the National Institute for Health and Care Research.