The general way to eat is 1 packet once, once in the morning and once in the evening; The way to eat is to drink water and swallow it. You can't finish eating it several times at a time. There is no clear distinction between before and after meals, which needs to be combined with your gastrointestinal situation, or after meals if it is not good.
By the way, the dosage of medicine needs to be changed according to your physical condition.