definiens: shall mean, for any period of determination, the difference of(a ) Gross Product Revenues for such period, less - 6 -(b ) the sum, with respect to the items described in clauses ( i ) and ( ii ) of the definition of Gross Product Revenues, of(i ) cash, trade discounts and rebates actually granted or paid Third Parties in accordance with customary industrystandards,(ii ) allowances and adjustments actually credited to customers for Product that is spoiled, damaged, outdated, obsolete, returned or otherwise recalled, but only if and to the extent the same are in accordance with sound business practicesand not in excess of customary industry standards,(iii ) charges for freight, postage, shipping, delivery, service and insurance charges, to the extent invoiced,(iv ) taxes, duties or other governmental charges to the extent invoiced,(v ) write - offs or allowances for bad debts,(vi ) rebates and chargebacks and other price reduction programs granted to managed care entities, GovernmentalAuthorities, group purchasing organizations or pharmaceutical benefit management companies, and(vii ) other payments required by law to be made under Medicaid, Medicare or other government special medicalassistance programs