You've surely, also noticed some advertisements for drugs, that don't actually tell you anything about what the drug is supposed to do, or what conditions it is supposed to treat? They just give you some very vague depiction of your life being better, if you use that drug, and then tell you to ask your doctor if that drug is right for you.
Turns out, this is all a relic of the system of laws and regulations that we have in place, regarding how drugs are to be advertised. If an advertisement tells you anything about what the drug is actually supposed to do, then it is required also to tell us about every possible side effect that it is known that this drug might have, however unlikely.
So, you get two kinds of drug advertisements; those that don't tell you anything at all useful, just to plant the idea in your head that you should ask your doctor if you should be on that drug; and those that tell you what the drug is for, along with a long, scary list of possible side effects.