Background: 15 patients diagnosed with autism spectrum disorder (ASD) from a neurodevelopment outpatient clinic in combined use of Cannabidiol (CBD) and Tetrahydrocannabinol (THC), 100 mg/ml CBD concentration 3 THC, initial dosage 1 mg/kg/day maximum 5 for six-month period. The were all non-syndromic, without epilepsy, ASD level 2 or 3, associated intellectual deficiency.