Which of the following statements about controlled substances is true?

The statement regarding the requirement for the owner's full name to be on the label if the prescription is for an animal is accurate. In veterinary medicine, when a prescription is written for an animal, regulations mandate that the label includes the name of the animal's owner. This ensures clarity and proper identification of the patient, aligning with the legal requirements for animal prescriptions. Having the owner's name on the label helps in maintaining accurate records, reducing the likelihood of medication errors, and ensures compliance with both federal and state regulations regarding controlled substances.

The other statements either do not align with regulatory standards or are not universally applicable, thus making them incorrect. For instance, while sometimes permissible under specific conditions, the general rule is that only one controlled substance is typically written per prescription form to avoid confusion. Additionally, selecting multiple items from a preprinted prescription form can also introduce risks of errors in dosage or substance, further emphasizing the need for careful regulation in prescribing practices for controlled substances.