definiens: means the total amount invoiced or otherwise bill ed by TRANSCEPT and its sublicensees for sales or other commercial disposit ions of the Product less the following ( collectivel y, ): ( a ) transportation charges, freight, postage, s hipping and insurance ( but only insurance related t o protecting the particular shipment against physical loss or damage ) ; ( b ) taxes ( other than taxes based on income ), tariffs, customs duty, surcharges, excise or other duty and any other governmental charges, all to the extent imposed upon the sale, transportation or delivery o f the Product and paid by the seller ; ( c ) trade dis counts, quantity discounts, cash discounts, rebates, allowances, cre dits or charge backs ; ( d ) other adjustments, allowa nces or credits ( calculated on a per unit basis ) to customers relat ing to the Product ; ( e ) provisions for bad debts 4 [ * * * ] Certain information in this document has been omitted and filed separately with the Securities a nd Exchange Commission . Confidential treatment has bee n requested with respect to the omitted portions