chloropyramine molecule 3d rendering, flat molecular structure with chemical formula and atoms color coding

chloropyramine firstgeneration antihistamine allergic conjunctivitis h1 receptor antagonists rhinitis bronchial asthma quincke 039 edema insect bites molecule molecular structure chemical formula c16h20cln3 3d model chlorobenzene derivatives aminopyridines bond skeletal compound structural built atomic chain medicine allergy drug clinical disease health care medical pharmaceutical pharmacy treatment laboratory medication medicament medicinal anaphylactic shock histamine