A Texas child can now treat a rare form of epilepsy with medical cannabis oil.

A 6-year-old girl became a customer of a medical marijuana delivery in Texas last week, making her the first person in Texas to legally receive cannabis for medical purposes, reports the Austin American-Statesman.

Texas’ first medical marijuana transaction came two years after Republican Gov. Greg Abbott signed a law legalizing sales of cannabis oils containing low levels of the psychoactive element THC and high levels of the therapeutic compound CBD.

A total of three dispensaries were authorized by the Texas Department of Public Safety to grow and distribute products in late 2017, including the shop that made the delivery, Knox Medical.

“For Texans suffering from intractable epilepsy, the wait for medical cannabis is finally over,” said José Hidalgo, the founder and CEO of Knox Medical, to the Texas Tribune. “This is a historic day for Texas and we will work tirelessly to uphold the trust and responsibility the state has placed in Knox Medical.”

Several studies involving a form of CBD medication created by GW Pharmaceuticals have proven the drug to effectively treat rare forms of epilepsy.

The medical program could possibly help a remarkable amount of people, as the Epilepsy Foundation Texas estimates roughly 150,000 Texans suffering from intractable epilepsy.