Assuming you are taking these potentially dangerous substances in an effort to improve your physical appearance, perhaps you could try going to the gym and eating more healthily? Meanwhile, if you stop taking them, side-effects such as acne and irritability would also disappear, leaving you not only healthier but better-looking and far better company.
However, if you are taking them for medical reasons - DON'T STOP without consulting your doctor. Going "cold-turkey" can cause serious rebound of the original problem.