Hi, If your panic attack diagnosis was made by a psychiatrist, you should continue your medications and must not make dosage changes/cease without his/her approval. If you take these drugs without supervision, I suggest a check-up before psychiatric medications. Sometimes cardiac problems like arrhytmias or mitral valve prolapsus or hyperthyroidism, excessive caffeine or stimulant intake may cause panic attack like symptoms. After excluding all of these possibilities, you must visit a psychiatrist for appropriate medications. I also suggest breathing exercises, yoga, classical music and regular exercise for lowering stress levels and relaxation. May you recover soon