definiens: means the total gross proceeds to Valera on saJes to Third Parties representing sales actually collected by Valera and its Affiliates of the Product in the ierritory, less deductions for the following to the extent actually paid or allowed with respect to the Product sales : ( a ) sales and excise taxes and duties ( including import duties ) paid or allowed by a selling party and any other governmental charges imposed upon the manufacture or sale of the Product, after giving effect to any rebates or refunds relating to such taxes or duties received by Valera~ ( b ) rebates and chargebacks ( including rebates [ 0 social and welfare systems ) actually paid ; ( c ) allowances, chargebacks, and credits to Third Parties on account of rejected, damaged, outdated, returned, withdrawn, or recalled Product or on account of retroactive price reductions affecting the Product ; and ( d ) amounts paid to Third Parties on account of rebate payments, including Medicaid rebates