Patients should be careful when buying CBD

(AP) — An Indiana doctor is warning patients to be careful when purchasing cannabidiol following the recent state law that authorized the widespread sale of the cannabis-derived oil.

Dr. Gary Gettelfinger, who practices out of IU Health Pain Center in Bloomington, has provided the supplement to more than 500 patients since it first became legal in Indiana to treat children with epilepsy, the Kokomo Tribune reported . CBD is believed to have therapeutic benefits and help with anxiety, insomnia, depression and epileptic seizures.

Some versions of cannabidiol, commonly referred to as CBD, can be toxic and cause a user to fail a drug test, Gettelfinger said.

Gettelfinger recommends users buy products that are organic and certified by the U.S. Department of Agriculture. He said to check the product’s absorption to ensure that it isn’t too oily.

Gettelfinger said buyers also should check the levels of THC, which is the psychoactive compound found in cannabis plants. Indiana law prohibits CBD oil sold in the state containing more than 0.3 percent of THC.