Depends on situation: The recommended dose is 50mg up to every 4 hours this antihistamine (benedryl) has been around for a long time & is the active component of most otc sleep products. It crosses into the brain & interferes with neurotransmitters. Various people can develop a tolerance to the med & need more, some will have weakness, hallucinations or seizures at such a dose. It is a drug & it can hurt you.
Answered 2/12/2013
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