The PCN does not recommend alimemazine (trimeprazine) for the unlicensed treatment of sleep disorders in children and adolescents. Alimemazine (trimeprazine) will be considered BLACK on the traffic light system for new patients Patients whose treatment with alimemazine was initiated by the NHS before this recommendation was made must be reviewed by their NHS consultant within 12 months but, should be able to continue treatment until the patient and their NHS consultant consider it appropriate to stop.

At the Surrey and North-West Sussex Area Prescribing Committee (APC) held in June 2020, it was decided that all BLACK status drugs would have their review dates extended for 5 years without the need for a review.

If a clinician or provider wishes to change the traffic light status of any BLACK drug then they will need to submit a paper for change as per usual APC process.