I'd invent a drug that could help stem cells regenerate body parts and body parts recover much faster. Why might you ask? Is it pro-life?
Actually, if you think about it, I'm looking at it from a ctb'ing attempt angle. There are many people who attempt to ctb and often fail, leaving them physically and mentally crippled. Thus, if there is a drug that helps them become able-bodied once more, then they have the ability to ctb (or improve their life). Also, not it's not pro-life. It's actually neutral because having a body part or organ regenerated means the person now has more options, including the choice to re-attempt ctb at a later future date or continue the attempt at recover (if he/she chooses to).