657—8.21 (155A) Prospective drug use review. For purposes of promoting therapeutic appropriateness and ensuring rational drug therapy, a pharmacist shall review the patient record, information obtained from the patient, and each prescription drug or medication order to identify:
	  1. 	 Overutilization or underutilization;
	  2. 	 Therapeutic duplication;
	  3. 	 Drug-disease contraindications;
	  4. 	 Drug-drug interactions;
	  5. 	 Incorrect drug dosage or duration of drug treatment;
	  6. 	 Drug-allergy interactions;
	  7. 	 Clinical abuse/misuse;
	  8. 	 Drug-prescriber contraindications.
Upon recognizing any of the above, the pharmacist shall take appropriate steps to avoid or resolve the problem and shall, if necessary, include consultation with the prescriber. The review and assessment of patient records shall not be delegated to staff assistants but may be delegated to registered pharmacist-interns under the direct supervision of the pharmacist.