What is NOT allowed under the Prescription Drug Marketing Act?

The Prescription Drug Marketing Act (PDMA) was enacted to enhance the safety and integrity of the drug supply chain. One of its primary objectives is to prevent the diversion of prescription drugs from legitimate channels into illegal markets. A critical part of this act involves ensuring that entities involved are properly registered and comply with state regulations.

Interstate commerce involving prescription drugs is tightly regulated, requiring that entities conducting such commerce be registered in the appropriate states. This ensures that the drugs distributed are monitored for safety, quality, and legality. If a company attempts to engage in interstate commerce without appropriate state registration, it violates the PDMA.

The other options pertain to practices that, while they may have their own legal contexts, do not directly contravene the specifics of the Prescription Drug Marketing Act. Hospitals selling drugs at market prices can operate under certain regulations without violating the PDMA, and practicing physicians can often request drug samples, though they must adhere to laws regarding the mode and documentation of such requests. Similarly, pharmacies are permitted to purchase drugs from licensed wholesalers, provided those wholesalers are also in compliance with the relevant regulations. These practices are generally acceptable under the PDMA, unlike the unregistered interstate commerce described in the correct answer.