doramectin doramectin doramectin, sold under the brand name dectomax among others, is a veterinary medication approved by the us food and drug administration (fda) for the treatment of parasites such as gastrointestinal roundworms, lungworms, eyeworms, grubs, sucking lice, and mange mites in cattle. it is available as a generic medication. it is available as a combination with levamisole under the brand name valcor. doramectinclinical datatrade namesdectomax, othersahfs/drugs.cominternational drug nameslicense data us dailymed: doramectin routes ofadministrationsubcutaneous, intramuscular, topicalatcvet codeqp54aa03 (who) legal statuslegal status us: otc for animals identifiers iupac name (1'r,2s,4's,5s,6r,8'r,10'e,12'r,13's,14'e,20'r,21'r,24's)-6-cyclohexyl-21',24'-dihydroxy-12'--4-methoxy-6-methyloxan-2-yl]oxy}-5,11',13',22'-tetramethyl-5,6-dihydro-3',7',19'-trioxaspiropentacosane]-10',14',16',22'-tetraen-2'-one cas number117704-25-3 ypubchem cid9832750chemspider8008478 yuniikgd7a54h5pkeggd01129 ycomptox dashboard (epa)dtxsid9048982 echa infocard100.123.125 chemical and physical dataformulac50h74o14molar mass899.128 g·mol−1 inchi inchi=1s/c50h74o14/c1-27-13-12-16-34-26-57-47-42(51)30(4)21-37(50(34,47)54)48(53)60-36-22-35(63-49(25-36)20-19-29(3)45(64-49)33-14-10-9-11-15-33)18-17-28(2)44(27)61-41-24-39(56-8)46(32(6)59-41)62-40-23-38(55-7)43(52)31(5)58-40/h12-13,16-17,19-21,27,29,31-33,35-47,51-52,54h,9-11,14-15,18,22-26h2,1-8h3/b13-12+,28-17+,34-16+/t27-,29-,31-,32-,35+,36-,37-,38-,39-,40-,41-,42+,43-,44-,45-,46-,47+,49+,50+/m0/s1 ykey:qlfzzsktjwdqos-ydblarsusa-n y (verify) it is used for the treatment and control of internal parasitosis (gastrointestinal and pulmonary nematodes), ticks and mange (and other ectoparasites). doramectin is a derivative of ivermectin. similarly to other drugs of this family, it is produced by fermentation by selected strains of streptomyces avermitilis. its spectrum includes: haemonchus, ostertagia, trichostrongylus, cooperia, and oesophagostomum species and dictyocaulus viviparus, dermatobia hominis, boophilus microplus, and psoroptes bovis, among many other internal and external parasites. it is available as an injection and as a topical solution. society and culture brand names doramectin is marketed in other countries as doramec l.a. for cattle, sheep, and swine. doramectin is available for horses as an oral, flavored, bioadhesive gel under the name doraquest l.a. oral gel. it can be used to control and treat internal parasites as roundworms, lungworms and some external parasites.