I believe they can. It's worth trying, if you're willing to.

[Why he's not willing, he doesn't want to say. He pulls out a bottle full of pills. The label says it's called doxepin, prescribed to him by John Watson for the treatment of depression. The pills inside have all been cut in half.]

I've halved them for you - this should be a safe amount. Would any of your companions know enough to watch you, to ensure they work properly?

[He remembers, vaguely, Clayton saying Quark would need supervision if he took antidepressants, for being so small. But seeing him like this...he needs any help he can get.]