Less Than Hero - S G Browne - Bog

"Lloyd Prescott is a professional guinea pig. After nearly a year on unemployment, Lloyd discovered he could make money volunteering for Phase One pharmaceutical drug clinical trials, where drugs are tested for safety by giving them to subjects and studying the side effects. Every month, Lloyd meets up with a group of other guinea pigs to share information on their clinical trials, but soon they learn they're getting a lot more than they bargained for: convulsions, memory loss, hallucinations, drowsiness, vomiting, sudden weight gain. These and other side effects affect them all--but rather than simply suffer the consequences, the guinea pigs find they're able to project these side effects onto others"--