Editing Tetracycline (section)

===Brand names===
It is marketed under the brand names Sumycin, Tetracyn, and Panmycin, among others. Actisite is a thread-like fiber formulation used in dental applications.<ref>{{Cite journal |vauthors=Litch JM, Encarnacion M, Chen S, Leonard J, Burkoth TL |date=November 1996 |title=Use of the polymeric matrix as internal standard for quantitation of in vivo delivery of tetracycline HCl from Actisite tetracycline fiber during periodontal treatment |journal=Journal of Periodontal Research |volume=31 |issue=8 |pages=540–544 |doi=10.1111/j.1600-0765.1996.tb00518.x |pmid=8971652}}</ref>

It is also used to produce several semisynthetic derivatives, which together are known as the [[tetracycline antibiotics]]. The term "tetracycline" is also used to denote the four-ring system of this compound; "tetracyclines" are related substances that contain the same four-ring system.{{cn|date=March 2023}}