In the current Many types of medication except Xenical is a "controlled substance" means that the doctor will need to follow some steps if your drug prescriptions may be addictive.
Currently, many drugs except Xenical are "controlled substances" means doctors need to follow certain procedures if they dispense to you. The drug can be addictive.
Currently, several drugs, except Xenical "controlled substances" means that the doctor needs to follow certain steps to dispense. Because of that drug may be addictive.