hydroxyzine molecular structure 3d, flat model, anxiolytics, structural chemical formula view from a microscope

hydroxyzine anxiolytics sedatives miscellaneous atarax molecule molecular structure chemical formula model c21h27cln2o2 atom chemistry antihistamine compound drug anxiety carbon medicine oxygen pharmacy treatment atomic hydrogen allergic allergy nitrogen itching pruritus sedative disease stylised tranquilizer biotechnology composition pharmaceutical sickness ball biochemistry biology health medication skeletal flat structural view from microscope microscope