You take one tablet three times a day within 1 hour of your meals. The reasoning behind it working is that if you take it before you eat ,it's obviously in your mind that if you have something with a high fat content that you will have this orange oily poo liquid running out and I mean running out!!.
Ultimately it still brings the decision down to you becase you can choose not to take it.
If you do choose to take Xenical when you get the box home there is a telephone number on it, phone it and it's a fab helpline and they are lovely and every now and then they send you leaflets, recipe books and they give you guidelines to the amount of fat you can actually eat. You can choose for them to be more involved if you wish by phoning you and encouraging you if you feel that would benefit you a bit like a slimming club.