When a prescriber indicates not to select an equivalent drug product, what must the pharmacist do?

When a prescriber indicates explicitly not to select an equivalent drug product, the pharmacist is required to respect those instructions. This directive typically arises in scenarios where the prescriber has determined that an equivalent, such as a generic version, may not be appropriate for the patient due to specific therapeutic needs, potential for adverse effects, or unique formulation considerations.

Respecting the prescriber's instructions ensures that the patient's treatment plan is followed as intended. This is crucial since the prescriber, having assessed the patient’s history and condition, is in the best position to determine what will be most beneficial for the patient’s specific circumstances.

While other options may seem reasonable under different circumstances—like contacting the prescriber for clarification in uncertain situations or informing the patient about alternatives—these actions are not warranted when a clear directive is provided. Selecting an alternative product anyway would go against the prescriber's explicit wishes, potentially leading to legal and ethical implications.