First, figure out if the "gender dysphoria"* is a problem for the individual it would apply to, or other people. "Fixing" something that isn't broken, except in the eyes of busybodies is stupid and obnoxious. If there were a pill, I think people could be offered it, but forcing people to take it is "conversion therapy" through drugs. Bad idea.

*I'm unsure this is a reasonable term for being in the wrong gender body. It implies confusion. The folks I've known who felt they should have had different plumbing weren't confused. I supposed some people could be.