Phenergan is an antihistamine.........used for allergies and is the best antihistamine, but unfortunately has quite sever side effects of drowsiness, so much so that it is used now far more for it;s side effects than it's antihistamine properties....e.g air sickness, sea sickness and insomnia.
good for sedation/night use to sleep in those who do not wish to use antidepressants/sedatives. they will make you very drowsy, leave you with a 'hangover' in the morning and a very dry mouth!
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