Selamectin (350 mg) – (2aE,4E,5’S,6S,6’S,7S,8E,11R,13R,15S,17aR,20aR,20bS)-6′-Cyclohexyl-7-[(2,6-dideoxy-3-O-methyl-?-L-arabino-hexopyranosyl)oxy]-3′,4′,5′,6,6′,7,10,11,14,15,20a,20b-dodecahydro-20b-hydroxy-5′,6,8,19-tetramethylspiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2′-[2H]pyran]-17,20(17aH)-dione 20-oxime