"i was prescribed vistaril 25mg to help relieve tension and was told to take 2 pills so 50mg if i 1 25mg pill didn&#039;t work. 50mg didn&#039;t really help either. i felt no improvement in how i felt aftetlr taking it. i was told after 30 minutes of taking it i should&#039;ve felt better but it never happened. after 2 to 3 hours after taking it i felt somewhat relaxed but was more tired than  relax. vistaril really didn&#039;t work out for me."