i am a pharmacist actually you can take contraceptive pill and reductil ...as most people that take it are women also most docters will give xenical and reductil together...but it is best to take some vitamin tablet otherwise your skin will become dry...sorry can not type chinese but any questions feel free to pm me..I will try to answer you..
the reason why xenical cause you to leak and need to go to toilet is the fat and oil content of your meals.ie the fattier the food the more xenical removes.as for reductil 15mg how long have you been on it for?can tried for 3months if no improvement then should really stop an assess.