FIELD: veterinary science.SUBSTANCE: invention relates to veterinary medicine and can be used to treat parasitic diseases of young reindeer. For this, the animal is fed for 3 days with a mixture of mixed fodder with mineral-vitamin supplement. One dose of the mixture contains 150 g of mixed fodder, 15 g of zeolite, 5–7 g of Kempendyay’s salt, 30,000 IU of vitamin A, 40,000 IU of vitamin D, 20 mg of vitamin E. On the 4th day in addition to the mixture add anthelminthic drug "Alben" at a dose of 7.5 mg/kg and continue feeding with a mixture of mixed fodder with mineral-vitamin supplement for 7–10 days.EFFECT: invention makes it possible to reduce the toxic and immunosuppressive effect of drugs in the treatment of parasitic diseases of young reindeer.1 cl