The Oklahoma House has given final approval to legislation that expands the medical use of an oil derived from marijuana.
The House voted 69-14 for the measure and sent it to Gov. Mary Fallin to be signed into law.
The treatment allows the medically supervised use of cannabidiol, a non-intoxicating derivative of marijuana. Backers say the oil effectively treats people who experience epileptic seizures. Previously, its use was limited to children under 18, but the bill approved Thursday removes the age restriction.
The measure also allows its use to treat spasticity due to multiple sclerosis, paraplegia and symptoms of chronic wasting disease.
Last year, Fallin signed legislation authorizing the use of cannabidiol in children but said she remains opposed to legalizing all medical marijuana.