definiens: means the amount invoiced by Buyer or any of its Affiliates ( each, a ) for sales of a given Product to a Third Party purchaser, less any and all deductions actually taken by a S elling Party with respect to Product sales in accordance with U. S. generally accepted accounting principles as in e ffect at the relevant time or for the relevant period, applied o n a consistent basis during the period involved, in cluding, but not limited to, deductions for : ( a ) trade, quantity and cash discounts, coupons, rebate s and other price reductions for the Product ; ( b ) credits and allowances for rejection or return of P roducts previously sold, price protection and shelf stock adjustment s ; reprocurement charges and other similar charges and inventory management fees ; ( c ) amounts written off as bad debt ; and ( d ) rebates and chargebacks, including, but not limited to, any payments required by law to be made under Medicaid, Medicare or other government medical assistance programs