It's my bad too, since the thread title is 'Zzzquil/Nyquil' and I never specified that I was talking about zzzquil. I actually thought that Nyquil was the same as Benadryl this whole time, but I guess it's not.
I had a throat infection yesterday so I did a doubleshot of tequila to kill the germs. Then an hour later I took two Nyquil liqui-gel capsules. This did not put me to sleep. Usually, the liquid form knocks me right out though. It just tastes gross.
I just took a good swig of NyQuil again tonight. I have bad insomnia but sometimes NyQuil doesn't work like I want. Last night I took quite a bit and ended up tossing and turning and having dreams about Dead Space 3 DLC when I did fall into a short slumber.
What kicks in for you with NyQuil, btw, is the Diphenhydramine and the Dextromethorphan. The latter is what makes some people "trip" as it disassociates you.