Phenergan Syrup 100ml (Pack of 5) – Prescription Antihistamine & Short

Phenergan Syrup 100ml (Pack of 5) is a prescription-only antihistamine used in the UK for short-term relief of insomnia, night-time allergies, and restlessness. Containing promethazine hydrochloride, it promotes natural drowsiness, helps you fall asleep faster, and supports more restful sleep. Ideal for those struggling with occasional sleeplessness, allergy-related disturbances, or travel-related insomnia. Always use under medical supervision.