Minocycline is used to treat infections caused by bacteria including pneumonia and other respiratory tract infections; certain infections of the skin, eye, lymphatic, intestinal, genital, and urinary systems; and certain other infections that are spread by ticks, lice, mites, and infected animals. It is also used along with other medications to treat acne. Minocycline is also used to treat plague and tuleramia (serious infections that may be spread on purpose as part of a bioterror attack). It can also be used in patients who cannot be treated with penicillin to treat certain types of food poisoning, and anthrax (a serious infection that may be spread on purpose as part of a bioterror attack). It can also be used to eliminate bacteria from your nose and throat that may cause meningitis (swelling of tissues around the brain) in others, even though you may not have an infection. Minocycline extended-release tablet (Solodyn) is only used to treat acne. Minocycline is in a class of medications called tetracycline antibiotics