(6R,13S,25R)-5-O-Demethyl-28-deoxy-6,28-epoxy-13-hydroxy-25-[(1S)-1-methylpropyl]milbemycin B (ACI); Milbemycin B, 5-O-demethyl-28-deoxy-6,28-epoxy-13-hydroxy-25-(1-methylpropyl)-, [6R,13S,25R(S)]- (9CI),(1'R,2R,4'S,5S,6R,8'R,10'E,12'S,13'S,14'E,16'E,20'R,21'R,24'S)-6- [(2S)-butan-2-yl]-12',21',24'-trihydroxy- 5,11',13',22'-tetramethyl-3',7',19'- trioxaspiro[oxane-2,6'-teane]- 10',14',16',22'-tetraen-2'-one,Ivermectin Covid-19