How are AMPs determined for drugs not available from retail community pharmacies that are also
As discussed in the final rule (81 FR 5250), if a specialty pharmacy meets the definition of a retail community pharmacy at section 1927(k)(10) of the Act, sales for such drugs would be included in AMP. This is true even in the event there are a low number of AMP eligible sales. Because CMS is permitting manufacturers to use a presumed inclusion approach when calculating AMP, and to make reasonable assumptions, an AMP will likely be generated for such drugs.