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Management of clozapine-induced sialorrhoea

SUMMARY Sialorrhoea (hypersalivation) is a common adverse effect of clozapine. If severe, it can affect patients' quality of life and adherence to the treatment. Clinicians therefore need to proactively manage this effect. At present, no drugs are licensed to manage clozapine-induced sialorrhoea, although there are many off-label treatment options, with variable effectiveness. Anticholinergic medications are commonly prescribed for it, but they have limited effect and can worsen constipation. This article gives a brief overview of other practical and pharmacological management options.