HealthSquare:Tetracycline Information, precautions and interactions of the drug. http://www.healthsquare.com/pdrfg/pd/monos/tetracyc.htm
Tetracycline HCL Information from the RxList. http://www.rxlist.com/cgi/generic/tetcycl.htm
Tetracycline Hydrochloride Toxicology and carcinogenesis studies of tetracycline hydrochloride. http://ntp-server.niehs.nih.gov/htdocs/LT-studies/tr344.html
