definiens: ) shall be reedefined as those products described, or to be described, in each of Exhibit A, B, C and D to this Addendum, which Exhibits may be added to this Addendum from time to time, subject to the following parameters : Two of the Products shall be as described in Exhibits A and B which are attached to this Addendum as of the Effective Date . The remaining two Products shall be described in Exhibits C and D as may be proposed by Cornerstone and reasonably agreed to by Neos . Each of 1 CONFIDENTIAL TREATMENT REQUESTED the Exhibits A through D shall include initial designations of the strengths of the two active ingredients for each Product and target specifications, which shall include dosage regimen and other matters which could materially impact the development plan or budget . The final strengths of each active ingredient and specifications for each of the four Products must be agreed upon by the Parties within the applicable time period set out in Exhibit F. If at the end of the applicable time period with respect to any Product the Parties reasonably disagree as to either the optimal strengths for the active ingredients or final specifications for the Product or as to Neos ' ability to develop the Product to such strengths and specifications within an agreed upon budget, then Cornerstone may within ten days after the expiration of the applicable time period, withdraw its proposal for such Product and may replace it with a proposal for a product that meets all the requirements of paragraph 1.3 below and the other requirements of this Addendum, so long as the development of such newly proposed product would not result in Neos being in breach of any agreement that it may have with any third party at the time of receipt of such proposal from Cornerstone . Even though a Product is withdrawn in compliance with the procedure above, the Parties agree that Cornerstone shall remain liable for and shall pay Neos the portion of the applicable budget for work done pursuant to the budget and prior to Neos receiving notice of the withdrawal of the Product