The hydrochloride salt of demeclocycline. A tetracycline antibiotic, it is used (mainly as the hydrochloride) for the treatment of Lyme disease, acne and bronchitis, as well as for hyponatraemia (low blood sodium concentration) due to the syndrome of inappropriate antidiuretic hormone (SIADH) where fluid restriction alone has been ineffective.
belongs to the class of organic compounds known as tetracyclines. These are polyketides having an octahydrotetracene-2-carboxamide skeleton, substituted with many hydroxy and other groups.