I have problems with many blood pressure medicines including amlodipine (norvasc). Amlodipine made me feel nervous and anxious and I no longer take it. I do take a bp med but I can't take a full dose because it makes me feel anxious and short of breath. I've tried proably twelve different ones.

In your post, did you mean xanax which is an anti-anxiety med? or was Zantac the correct med?