Adjunct material retained by a staple cartridge assembly is provided. The adjunct material provides elution of medicants therefrom such that release of one medicant regulates release of another medicant. A first medicant is released as a bolus dose substantially immediately upon delivery of the adjunct material to tissue. The second medicant is associated with the staple cartridge assembly in a manner such that release of the second medicant to tissue is regulated by the release of the first medicant.