That's a side effect, dumbass. Every medicine has side effects. It's not the primary purpose of the drug or even a likely outcome, like you originally implied.
Why even bother lying if you don't possess the intelligence to formulate even a shallow deception? You understand that attempting to be deceptive, and then demonstrating you're too stupid for even simple deceptions is worse than if you had just said nothing, right?
Some advice: if you have to employ deception to make your argument, your argument is probably shit and probably isn't even worth the sound waves it travels on. So go back to the drawing board and trying coming up with something less fucking stupid.