The study published in the New England Journal of Medicine found when people took their medication they were 32-41% less likely to be convicted of a crime than when they were off medication for a period of six months or more.

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Fukuda praised as "innovative" the decision by Norway to distribute antiviral medication over the counter for a limited period of time.

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To qualify for the study, the children had to have a normal IQ and not need a medication change during the five-day study period.

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He had visited his GP three times over a period of six weeks complaining of chest pains and was given medication for indigestion.

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If your child's symptoms are completely controlled for a period of time, your child's doctor may recommend lowering doses or taking your child off a medication (stepping down treatment).

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