I took 2 capsules of Tylenol PM about 3 hours ago to help me fall asleep (I've used Tylenol PM quite a few times before). However, I switched body washes earlier this evening and I'm having an allergic reaction to it (itchy rash). My question is, how long do I have to wait until I can take Benadryl to clear up the rash? I don't want to overdoes on diphenhydramine as that is what's in the Tylenol Pm. Any help is appreciated!
9 Feb 2011
You need to wait at least 4 hours between doses. Each Tylenol PM contains 25mg diphenhydramine which is the same amount in an OTC Benendryl. If the Tylenol PM is not helping the itch, the Benedryl wont either. They are basically the same thing except Tylenol PM, of course, has the acetaminophen.
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
1 answer • 13 Feb 2010
I have a few years ago and after 2 visits in 2 days to the ER I found out that some newer antisthimines derive from it. They say it's something ...
1 answer • 6 Aug 2011
what treatment would you recommend for a friend whom has taken a tylenol 3 thinking it was an asprin. He is having hives only on his face? Benadryl?
2 answers • 5 Sep 2011