Milbemycin oxime

Использование

Milbemycin oxime is a semi-synthetic macrocyclic lactone prepared by the oxidation and oximation of a mixture of two natural products, milbemycin A3 and A4 (in ~30:70 ratio). Milbemycin oxime is used therapeutically for the prevention of intestinal parasites in dogs. Like the other milbemycin/avermectins, it was developed for intestinal parasite control in animals and acts by opening glutamate sensitive chloride channels in neurons of invertebrates leading to paralysis by hyperpolarisation of these cells and signal transfer blocking.

Клиническое использование

Milbemycin oxime (Milbemycin) is available as an oral chewable tablet (2.3–27 mg) for heartworm prevention in dogs and cats, as well as a 0.1% otic solution for treating ear mites. It is not available in a more concentrated dosage form, so overdoses are relatively rare[1].

Ветеринарные препараты и методы лечения

Milbemycin tablets are labeled as a once-a-month heartworm preventative (Dirofilaria immitis) and for hookworm control (Ancylostoma caninum). It has activity against a variety of other parasites, including adult hookworms (A. caninum), adult roundworms (T. canis, T. leonina) and whipworms (Trichuris vulpis). In cats, milbemycin has been used successfully to prevent larval infection of Dirofilaria immitis.
Milbemycin, like ivermectin can be used for treatment of generalized demodicosis in dogs, but treatment can be significantly more expensive. It is likely safer to use in breeds susceptible to mdr1 genetic mutation (Collies, Shelties, Australian shepherds, etc.) at the doses used for this indication, but neuro toxicity is possible. Older dogs, those that have had a long duration of disease prior to treatment, and dogs with pododemodicosis appear have a lower success rate with milbemycin treatment.