The present disclosure relates to a human IL-4R binding antibody, an antigen binding fragment thereof, and a medical use thereof. Provided are a chimeric antibody and a humanized antibody, including a CDR region from a human IL-4R binding antibody and an antigen binding fragment thereof, a pharmaceutical composition including the human IL-4R binding antibody and the antigen binding fragment thereof, and a use thereof as a drug treating allergic disease. Also provided is a use of the humanized antibody IL-4R binding antibody in preparing a drug used for treating IL-4R mediated diseases or illnesses.
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