What is the exception for recording details when selling a poison?

The correct choice indicates that the requirement to record details is waived when a physician's prescription is provided for the sale of a poison. In the context of pharmacy law, certain regulations are established to ensure public safety when handling toxic substances. However, when a poison is dispensed upon a valid prescription from a licensed physician, it implies that the prescribing authority has determined the necessity and appropriateness of the substance for the patient’s treatment.

This regulatory exception acknowledges the professional judgment exercised by healthcare providers, thus allowing for streamlined patient care while still upholding the overall safety norms in managing poisonous substances. Prescriptions indicate a controlled environment where comprehensive patient assessments and risks are considered, differentiating it from over-the-counter sales or other situations where detailed recording is mandated to track usage and prevent misuse.

The other scenarios provided do not involve the same level of oversight or professional intervention, making them less applicable as exceptions in the context of regulatory requirements for recording details when selling poisonous substances.