Daily usage of rantax & atarax (hydroxyzine) tablets cause any problems to pregnency?

Quite Concerning: Zantac (ranitidine) is category b and so likely ok during pregnancy. Atarax (vistaril/hydroxyzine) is actually category x during first trimester and c during later pregnancy. Not sure why you need to use both of these meds..Recommend consulting doc for eval for need of use etc.. Likely all medication, use smallest effective dose for shortest period of time possible. Consult doc. Good luck.