Veterinary Drug Handbook (VDH) is the reference veterinarians turn to when they want an independent source of information on the drugs that are used in veterinary medicine today.


Atopy

An allergy to something that is inhaled such as pollen or house dust. Also called 'inhalant allergy'. See articles in the Allergies section. Allergic inhalant dermatitis or atopic dermatitis. Allergens are true antigens which are usually inhaled or penetrate the skin as complete allergens or haptens. Allergens may also be ingested or injected.
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