influenza
"As a substitute for Nyquil, this worked surprisingly well.  I got a full night of comfortable sleep and woke the next morning marginally refreshed (I was, after all, fighting the flu).  The only negative side effect of this drug is that it subtly puts you off your game.  I took some and then drove to the store to get more medicine on the advice of a health nurse.  Because I was slightly buzzed (but did not realize it) I almost ran a red light.   Don't drive if you take this medicine."