can be very helpful. I'm a vegetarian and suffered from insomnia for many years. Eventually I tried Tryp, which is an essential amino acid that we can't synth in our systems. It's a precursor to melatonin, the body's sleep hormone.
It has zero side effects.
Sorry not to be responsive. I've used some prescriptions (Ambien and Clonazepam, et al)but was very susceptible to the side-effects.
This link:
http://www.rxlist.com/cgi/generic/vistaril.htmsuggests that your drug is essentially an antihistamine, similar to benadryl. I imagine the only side ffect might be a slight elevation of blood-presure. I found benadryl useless, but others respond to it more readily. Doubt it will hurt to try.