Painkiller. Pretty strong. Addictive, too. Got a lot of people paying after using it to deal with the addiction, so it can get kinda expensive for people who don't have many caps.

[Like the people around Freeside. Boone has the luxury of not having to worry about it because he can afford treatment for addiction too, but he knows a lot of people have to weigh how bad the pain is against the cost of the Med-X itself and the possible side effects.

And yeah, he'd rather not let people hear his thoughts. He's a private person, and he doesn't want people asking about things he doesn't want to talk about.]