An approved antidote or cordiall medicine, that by Gods favour cureth the pestilentiall feaver, or plague, with other contagious agues or feavers, beginning either hot or cold, and that at once taking, or at the most at twice, and hath no tast nor smel: and the quantity at one time to be taken is but 8 graines, and the vertue therof, will not decay in 40 yeares, and it is to be used as followeth.