Guaiphenesin as an individual compound or combined with other elements on OTC drug list in cough medicines, antipyretic medicine, suffering relievers Tetracycline: Ch?n t?ng h?p protein c?a vi khu?n b?ng cách g?n vào ribosome 30S, hi?u qu? v?i nhi?u lo?i vi khu?n. Ví d?: