The act states that if the United States food and drug administration approves a prescription medicine that contains 3,4-methylenedioxymethamphetamine (MDMA), and if that medicine has been placed on a schedule of the federal "Controlled Substances Act", other than schedule I, or has been exempted from one or more provisions of such act, then thereafter prescribing, dispensing, transporting, possessing, and using that prescription drug is legal in Colorado only if the medicine is possessed by a person authorized to legally possess such a controlled substance in Colorado. (Note: This summary applies to this bill as enacted.)