my farther is heavily medicated with propanal and inderal for his heart and he has been taking them for a few months. it has gotten to the point when his bowels move it's and intense smell of the medchine . is that normal. is there something he can do to stop it . or will it contiune until he stops with the medication. also is it free to have your colon clean and if so why should you have your colon clean and is it good for person trying to lose weight?