Drug Enforcement Administration acting Chief Chuck Rosenberg reiterated an Obama-era stance Thursday that “marijuana is not medicine.”

“If it turns out that there is something in smoked marijuana that helps people, that’s awesome,” he said, speaking at the Cleveland Clinic in Ohio. “I will be the last person to stand in the way of that. … But let’s run it through the Food and Drug Administration process, and let’s stick to the science on it.”