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Diphenhydramine Hydrochloride Tablets contains the active substance diphenhydramine hydrochloride which is an antihistamine with sedative properties which induces drowsiness or sedation. It works by reducing the time needed to fall asleep and increases the dept and quality of sleep. Diphenhydramine hydrochloride is used to aid relief of temporary sleep disturbance (difficulties sleeping) in adults and children over 16 years of age.
Like all medicines, Diphenhydramine can cause side effects, although not everyone gets them. However, you are more likely if you’re over 65. Common side effects happen in more than 1 in 100 people. Talk to your doctor or pharmacist if these side effects bother you or do not go away:
Call 111 now if you experience any of the following serious side effects:
Call 999 if: You or a child has had a seizure or fit