Champix not cause of mood symptoms

Neuropsychiatric events seen with varenicline (Champix) may be due to withdrawal symptoms rather than side effects of the drug, a new study suggests.

A review of data from more than 12,000 smokers treated with varenicline by their GP found that neuropsychiatric events such as anxiety, aggression and suicidality were often cited by GPs as reasons for stopping the drug.

However, psychiatric adverse event rates were no higher than would be expected for