Mannkind should add 20 unit cartridge size Oct 6, 2015 20:05:32 GMT -5 via mobile sportsrancho likes this Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by saxcmann on Oct 6, 2015 20:05:32 GMT -5 Mannkind should produce/manufacture a 20 unit cartridge size. Dosing needs to be adjusted for larger patients...4, 8, 12, and 20 unit. Ease of use and convenience for patients... Currently patients need multiple doses during a meal.