sedation
"I take phernergan to help me sleep when I am run down or am needing that extra bit of sleep. It always knocks me out within an hour and I sleep like a baby! I struggle to wake up if I take a higher dosage but I wake up feeling refreshed and like I have slept for years! 
I recommend it to everyone who has trouble sleeping! I have also used it for hay fever but never really saw any remarkable changed in my allergy."