Drugs may be obtained only from pharmacies which are properly registered by the State in which the pharmacy is located, or from the ordering practitioner. A pharmacy must keep on file the signed written order of the practitioner for audit by the department, or other authorized agency, for six years from the date of payment for any drug dispensed. A practitioner must annotate the patient record to reflect the dispensing of the drug and the quantity, dose, directions for use and number of refills, if any.
As used in this subdivision, a formulary code is defined as follows:
N.Y. Comp. Codes R. & Regs. Tit. 18 § 505.3