Final answer:
A licensee can prescribe a Schedule II controlled substance if they have a valid medical license, a DEA number, and comply with state and federal regulations. Certain non-physician practitioners may also prescribe these drugs according to state law.
Step-by-step explanation:
A licensee can prescribe a Schedule II controlled substance when they have the appropriate medical authorization and adhere to the regulations surrounding these medications. Substances classified as Schedule II, such as opium, heroin, fentanyl, morphine, oxycodone, Vicodin, methadone, and other prescription pain relievers, have a high potential for abuse which may lead to severe psychological or physical dependence.
For a licensee to prescribe these drugs, they must have a valid medical license in the state where they are practicing and a valid Drug Enforcement Administration (DEA) number. It's worth noting that in some cases, non-physician practitioners like certain advanced practice nurses and physician assistants may also have the authority to prescribe these medications, depending on state laws. Moreover, psychologists in a few states like Louisiana and New Mexico, have obtained the privilege to prescribe medications after additional training and certification, following the appropriate state and federal regulations.