“…The reduction in particle size results in more therapeutically effective small particles being able to reach deep into the airway and larger particles remaining in the ICs instead of being deposited in the oropharynx, thereby reducing local side effects [ 14 , 21 , 24 ]. Through the use of ICs, originally intended for use by children and infants, the inhalative application of corticosteroids is also possible for animals [ 11 , 25 , 26 ]. For this purpose, ICs, in combination with facemasks, have been developed for veterinary use [ 27 , 28 ].…”