"i have social/general anxiety and insomnia. for the first week 50mg of hydroxizine knocked me out at night for 10-12 hours.  now it is not working as well as it is causing restless legs and arms. i&#039;ve been able to take less prozac (from 20mg to 10) and less trazodone(100mg. to 50) without side effects, i hope to discontinue those. i am allergic to most everything, hydroxyzine helps with those (even cat allergy!) i&#039;m not energetic but will discontinue other meds as they add to that in combination of all. wasn&#039;t nervous at husbands large family holiday get together which was really nice! (50mg) also most importantly, completely fixes the inability to achieve orgasm noted from prozac "