Infections caused by rickettsiae; Mycoplasma pneumoniae; agents of psittacosis, ornithosis, lymphogranuloma venereum and granuloma inguinale; Borrelia recurrentis; Haemophilus ducreyi; Pasteurella pestis; Pasteurella tularensis; Bartonella bacilliformis; Bacteroides; Vibrio comma; Vibrio fetus; Brucella; Escherichia coli; Enterobacter aerogenes; Shigella; Acinetobacter calcoaceticus; Haemophilus influenzae; Klebsiella; Diplococcus pneumoniae; Staphylococcus aureus, Streptococcus pneumoniae

When penicillin is contraindicated, infections caused by Neisseria gonorrhoeae, Treponema pallidum, Treponema pertenue, Listeria monocytogenes, Clostridium, Bacillus anthracis, Fosobacterium fusiforme, Actinomyces israelii

As an adjunct to amebicides in acute intestinal amebiasis

Oral tetracyclines are indicated for treatment of severe acne, uncomplicated urethral, endocervical, or rectal infections in adults caused by Chlamydia trachomatis

Treatment of inflammatory lesions of nonnodule, moderate to severe acne vulgaris in patients 12 yr and older (ER tablets)

Oral minocycline is indicated in treatment of asymptomatic carriers of N. meningitidis (not useful for treating the infection); infections caused by Mycobacterium marinum; uncomplicated urethral, endocervical, or rectal infections caused by Ureaplasma urealyticum; uncomplicated gonococcal urethritis in men due to N. gonorrhoeae

Arestin: Adjunct to scaling and root planing to reduce pocket depth in patients with adult periodontitis

Unlabeled uses: Alternative to sulfonamides in the treatment of nocardiosis; treatment of early rheumatoid arthritis, gallbladder infection caused by Escherichia coli, infective endocarditis