Trying to hack the body like this is the equivalent of fiddling around with some extremely complex code that you have no idea what does (in production, on an infinitely complex system with zero unit test coverage).
To some extent that's true for all drugs (as well as all foods). It's like poking random numbers into memory and restarting your Asteroids game to see if you get 65,536 extra ships, or if the process locks up.