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From Wikipedia, the free encyclopedia

A bactericide or bacteriocide is a substance that kills bacteria and, ideally, nothing else. Bactericides are either disinfectants, antiseptics or antibiotics.


Bactericidal disinfectants

The most used disinfectants are those applying

such as of pH < 1 or > 13, particularly under elevated temperature (above 60°C), kills bacteria.

Bactericidal antiseptics

As antiseptics (i.e., germicide agents that can be used on human or animal body, skin, mucoses, wounds and the like), few of the above mentioned disinfectants can be used, under proper conditions (mainly concentration, pH, temperature and toxicity toward man/animal). Among them, important are some

Others are generally not applicable as safe antiseptics, either because of their corrosive or toxic nature.

Bactericidal antibiotics

Bactericidal antibiotics kill bacteria; bacteriostatic antibiotics only slow their growth or reproduction.

Antibiotics that inhibit cell wall synthesis: the Beta-lactam antibiotics, (penicillin derivatives (penams), cephalosporins (cephems), monobactams, and carbapenems) and vancomycin. There may be others.

Also bactericidal are daptomycin, fluoroquinolones, metronidazole, nitrofurantoin, co-trimoxazole. There may be others.

Aminoglycosidic antibiotics are usually considered bactericidal, although they may be bacteriostatic with some organisms

See also



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