a. and sb. Med. [ANTI- 3.] A. adj. Of use against the plague and similar epidemics. B. sb. (sc. medicine).
1683. Phil. Trans., XIII. 104. Rare Antipestilentials, Excellent Oyles, Liquors &c.
1722. De Foe, Plague, Wks. V. 23. Antipestilential pills.
1743. trans. Heisters Surg., 202. Certain hot Spirits or Waters, dignified with the Title of Antipestilential.