Harmine alkaloid molecule. Herbal inhibitor of monoamine oxidase A. (MAO-A). 3D rendering. Atoms are represented as spheres with conventional color coding: hydrogen (white), carbon (grey), oxygen (red), nitrogen (blue).

Cyluronic acid drug molecule (Cyluronic acid). Used in treatment of inflammatory bowel disease. Atoms are represented as spheres with conventional color coding: hydrogen (white), carbon (grey), oxygen (red), nitrogen (blue).