Ukraine’s parliament has voted to legalize medical marijuana after the war with Russia left thousands of people with post-traumatic stress disorder that many believe could be eased by the drug.

The new law, which will come into effect in six months’ time and which also allows cannabis to be used for scientific and industrial ends, passed by 248 votes in the 401-seat parliament in Kyiv. A full breakdown of the vote wasn’t immediately available. The law was proposed by Prime Minister Denys Smyhal.

The legislation imposes strict controls on cannabis production and distribution. A doctor’s prescription will be required to obtain any medicine containing cannabis. Recreational use of cannabis remains a criminal offense.