Phenergan Syrup 100 ml is a prescription-only antihistamine in the UK, containing promethazine hydrochloride. Widely used for short-term relief of insomnia, night-time allergies, restlessness, and sleep disturbances, it works by promoting natural drowsiness and calming the nervous system. This syrup helps you fall asleep faster, stay asleep longer, and enjoy more restful nights. Alway... https://znightcare.com/product/phenergan-syrup-100-ml-uk/