Um, actaully no, it's not logical. Keeping something out of someone's body is a far cry from dictiating that something must be put in.
Also, in the first case it's the individual who's putting it into his own body; in the second, it's a outside entity putting something in. Not the same thing at all.
Prohibiting or mandating by the government is the same in that the government controls what goes into your body. Either way, it is government control.