ST. PAUL (AP) -

Minnesota is adding post-traumatic stress disorder as a condition that qualifies for medical marijuana under the state program.

PTSD was one of nine conditions that citizens had asked the Department of Health to consider adding the program, and the only one to make the cut.

Commissioner Ed Ehlinger said supports of PTSD made the strongest case, even though he said there was a lack of published scientific evidence that medical marijuana works.

The department also decided Thursday to let manufacturers make topical formulations to apply medical marijuana in such form as patches, lotions, and creams.

Minnesota lawmakers passed one of the strictest medical marijuana laws in the country in 2014. Before Thursday, only 10 conditions qualified for the program and using the plant form is banned.