It should have some effect, otherwise why not just drink water? And it hurts the stomach. You'd better learn to swallow medicine. If you are really scared, put it in the middle of your tongue, dry your throat and drink water. This should do. It's almost the same every time you take medicine.

Besides, this medicine has a big side effect, which seems to contain lead. MM should buy some milk to drink, lead is poisonous. If you really don't want to eat, buy some chocolate to replenish energy.

Finally, I wish you success in losing weight!