definiens: means the gross invoice price of each Covered Prod uct invoiced by a Party or such Party ’s Related Parties to the first Third Party, a fter deducting ( if not previously deducted ) from th e amount invoiced or received the following ( provided such d eductions shall be incurred reasonably for the bene fit of the Covered Product ): ( a ) trade and quantity discounts other than early p ay cash discounts ; ( b ) returns, rebates, chargebacks and allowances ; ( c ) discounts pursuant to indigent patient programs and patient discount programs to include coupons ; ( d ) retroactive price reductions that are actually allowed or granted ; ( e ) sales commissions paid to Third Party distribut ors and/or selling agents ( which shall not include sales organizations, whether contracted or internal to the Assignee ) ; and ( f ) sales or excise taxes, custom duties, and other governmental charges, to the extent separately stated on the applicable invoice