A Study to Assess the Effect of Cannabidiol Oil on Pain After Ureteroscopy for Kidney Stones

Inclusion Criteria: * Patients who are diagnosed with kidney or ureteral stones confirmed on imaging (CT of the abdomen and pelvis) and who elect for definitive treatment via ureteroscopy at two sites within a tertiary care institution. * Age 18-75 years of age. * Patients of either gender. * Patients of all ethnic backgrounds. * Capable of giving informed consent. * Capable and willing to fulfill the requirements of the study. Exclusion Criteria: * History of chronic pain. * Chronic use of opioid or other pain medication (\> 12 weeks). * Known allergy to CBD oil or other cannabinoids. * Known or suspected pregnancy. * Inability to give informed consent or unable to meet requirements of the study for any reason. * Bilateral ureteroscopy. * Current marijuana, cannabidiol (CBD), or dronabinol use. * Liver disease/cirrhosis. * Current treatment of seizures with clobazam, valproate, or other antiepileptic medications.