It is now legal to use an oil derived from marijuana plants to treat severe epilepsy in South Carolina.

Gov. Nikki Haley on Monday signed signed into law a bill allowing the use of CBD oil, which comes from the marijuana plant, as a treatment option for those with epilepsy, according to published reports. The oil must be prescribed by a doctor.

CBD oil, also known as cannabis oil or cannabidiol, has almost none of the mind-altering substance in marijuana, according to a story on the WLTX-TV website.

Because the substance has been illegal, it is not yet readily available, the story says.

Read the full story here: http://j.mp/S8MPMR

Information from http://www.wltx.com/