A Little Poison Now and Then, That Makes Pleasant Dreams
Writing at Slate, Will Saletan reports that clinical trials have shown the experimental drug nalmefene to be effective at curbing the urge to gamble. Basically, by interfering with components of the brain's pleasure systems, the drug takes the thrill out of winning and losing.
Obviously, if this helps people who've decided they have a problem gamble less, that's fantastic. But part of me wonders whether a drug that takes the fun out of risky behavior isn't going to sound like the best thing since Ritalin to a lot of parents.