; and (ii) may not exceed 10 percent of the average net price of such an insulin drug. (D) Definitions In this section: (i) Insulin (I) In general The term insulin means a prescription drug containing insulin that is approved by the Food and Drug Administration to improve glycemic control in patients with diabetes mellitus (and may include any medical supplies included with such drug or associated with the injection of such drug). (II) Exclusion Such term does not include any medical supplies that provides for the monitoring of insulin levels. (ii) List price The term list price has the meaning given the term wholesale acquisition cost in section 1847A(c)(6)(B) of the Social Security Act (42 U.S.C. 1395w–3a(c)(6)(B)). (iii) Net price The term net price means, with respect to prescription drug coverage under a group health plan, the list price of the drug net all rebates, discounts, concessions, and other adjustments applied to the cost paid by the group health plan, or by any other entity that provides pharmacy benefit management services under a contract with any such group health plan, regardless of whether such adjustments are prospective or retrospective. (iv) Prescription drug The term prescription drug mean a drug, as defined in section 201(g) of the Federal Food, Drug, and Cosmetic Act ( 21 U.S.C. 321(g) ), that is subject to section 503(b)(1) of such Act ( 21 U.S.C. 353(b)(1) ).