I was prescribed Hydroxizine PAM for anxiety/panic disorder - take as needed. It works great for me. But I was recently prescribed a ZPack (azithromycin) for sinusitis. I read that taking these together can cause serious heart rhythm problems. I just finished the ZPack but very fearful of taking the Hydroxizine...just another health anxiety issue it is a vicious cycle...anyone know how long should I wait to take the hydroxizine?