Health and Medicine

Doctors have no approved medicine to help treat marijuana dependence and abuse, but in small new clinical trial topiramate reduced the amount of cannabis heavy smokers used when they lit up. The results also show, however, that many volunteers couldn’t tolerate the drug’s side effects.

Among HIV-positive patients with Hodgkin lymphoma, a new study finds that blacks are significantly less likely than whites to receive treatment for the cancer, even though chemotherapy saves lives.