17 Nov 2012
All good answers, but I want to add if you're talking about days in a row I have found it loses its effectiveness. I think it's one of those that tolerance builds up quickly. So I try to use it as a last resort if nothing else eases symptoms. The effectiveness comes back if you leave it alone for a bit tho, like for me a few days without it and it works again.
- Diphenhydramine Information for Consumers
- Diphenhydramine Information for Healthcare Professionals (includes dosage details)
- Side Effects of Diphenhydramine (detailed)
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1 answer • 1 Aug 2009
... alertness & no sleep
2 answers • 2 Apr 2013
If so would the military test for diphenhydramine and what are the levels allowed? I take it as a sleep aid, but I'd grown used to it and have ...
1 answer • 1 Oct 2013