Efficacy of a Triptan in the Treatment of Hostility and Aggression Among Convicts With a Psychiatric Treatment Order

Inclusion Criteria: * Patient under psychiatric treatment order for violent crime * More than two violent incidents in the year preceding inclusion, of which at least one within the last three months * Patient is undergoing psychiatric treatment * Informed consent Exclusion Criteria: * Unable for informed consent * Intolerance for any prescription compound * Severe liver failure (Child-Pugh grade c) of renal failure (creatinine clearance \< 15 ml/min.) * Increased risk of coronary vasospasm: symptoms of vascular disorder (including angina pectoris), history of vascular incidents, severe HBP, ECG-abnormalities in history or at screening prior to inclusion, vascular of cardial souffles. * History of vascular incidents, hyperlipidaemia, severe HBP, DM * Use of vasoconstrictive agents such as ergotamine derivates including methysergide, or other triptans. * Increased risk of serotonergic syndrome: use of irreversible MAO-blocker * Age \< 18 yr. or \> 65 yr.