xylometazoline molecular structure 3d, flat model, vasoconstrictors, structural chemical formula view from a microscope

xylometazoline vasoconstrictors xylomethazoline oxymetazoline molecule molecular structure chemical formula model c16h24n2 atom atomic hydrogen drop nose spray rhinitis carbon nasal mucus adrenaline decongestant mucous vasoconstriction xylometazolin medicine drug pharmaceutical chemistry pharmacy treatment pharmacology disease generic therapy membrane skeletal structural nitrogen oxygen illustration icon pharma congestion composition flat view from microscope microscope