Two Republican lawmakers have introduced legislation to make medical marijuana legal in Tennessee, but only in oil-based products.

Senator Steve Dickerson of Nashville and Representative Jeremy Faison of Cosby announced the bill's filing Thursday amid wide support for medical marijuana in state polls.

The lawmakers said they believe the change could benefit 65,000 Tennesseans. Patients would have to have certain medical conditions, from cancer to post-traumatic stress disorder.

The legislation would not allow use of recreational marijuana.

The National Conference of State Legislatures said 29 states have medical marijuana programs, which vary in form.

State Republican lawmakers have been split on the issue. Senate Speaker Randy McNally of Oak Ridge has opposed any kind of marijuana legalization. House Speaker Beth Harwell of Nashville said she understands the need for medical marijuana, but has opposed recreational.