There are some drugs that causes serious side effects. Topamax is one such drug that can cause misery in people’s life with all the side effects that it produces. Having a lot of side effects it can be fatal too. The makers of the drug must be extra careful with what they are preparing; enough testing and only then they have to market it in the field. Such is the case with topamax, where the topamax side effects are a large list which means it has lots of side effects that can cause when one takes it. Birth defects for the child, weight loss, upper respiratory tract dysfunctions, and risk of congenial malfunctions, fatigue and confusion are the main side effects of this drug.