The receipts of a pharmacist from selling drugs to welfare patients may be deducted from gross receipts in a situation in which the health and environment department remits to the pharmacist the wholesale cost of the drug sold and a fixed amount per prescription filled. Such receipts are derived from the sale of tangible personal property to the state of New Mexico and may be deducted from gross receipts pursuant to Section 7-9-54 NMSA 1978.
N.M. Admin. Code § 3.2.212.18