UW-Madison study will inject people with meth to answer a decades-old question

But a pair of researchers at UW-Madison hope to close that decades-old knowledge gap through a study in which they’ll inject 17 people with small doses of both kinds of methamphetamine to see how the “D” isomer present in illicit meth metabolizes in the body and whether that changes when the “L” isomer, the kind in nasal sprays, is present.