Can you take Hydroxyzine while on suboxone?

Hey, I am prescibed both Suboxone and Hydroxyzine both from the same doctor. He obviously thinks its okay to take these two medications together, but then again he also prescribed me Xanax while I was on Suboxone. Personally the only reason I go to this doctor is because he is one of the only places that I can get Suboxone from. Other than for that reason I would never go there. I trust him to a certain extent ,but then again i don't trust him 100%. I have been coming to this site to see if somone has answered this question, but still no answer.

The main reason why I question his judgment on the mixture of these two is because the both can cause respiratory depression