Achromycin

Tetracycline is a broad spectrum antibiotic, that is, it is active against many different types of bacteria. It is effective against Hemophilus influenzae, Streptococcus pneumoniae, Mycoplasma pneumoniae, Chlamydia psittaci, Chlamydia trachomatis, Neisseria gonorrhoeae, and many others. Tetracycline prevents growth of bacteria by preventing the bacteria from manufacturing proteins that they need to survive. The first drug of the tetracycline family, chlortetracycline, was introduced in 1948.