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This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (December 2009) (Find sources: Bactericide – news, books, scholar) A bactericide or bacteriocide is a substance that kills bacteria and, ideally, nothing else. Bactericides are either disinfectants, antiseptics or antibiotics. Contents 1 Bactericidal disinfectants 2 Bactericidal antiseptics 3 Bactericidal antibiotics 4 See also // Bactericidal disinfectants The most used disinfectants are those applying active chlorine (i.e., hypochlorites, chloramines, dichloroisocyanurate and trichloroisocyanurate, wet chlorine, chlorine dioxide etc.), active oxygen (peroxides, such as peracetic acid, potassium persulfate, sodium perborate, sodium percarbonate and urea perhydrate), iodine (iodpovidone (povidone-iodine, Betadine), Lugol's solution, iodine tincture, iodinated nonionic surfactants), concentrated alcohols (mainly ethanol, 1-propanol, called also n-propanol and 2-propanol, called isopropanol and mixtures thereof; further, 2-phenoxyethanol and 1- and 2-phenoxypropanols are used), phenolic substances (such as phenol (also called "carbolic acid"), cresols (called "Lysole" in combination with liquid potassium soaps), halogenated (chlorinated, brominated) phenols, such as hexachlorophene, triclosan, trichlorophenol, tribromophenol, pentachlorophenol, Dibromol and salts thereof), cationic surfactants, such as some quaternary ammonium cations (such as benzalkonium chloride, cetyl trimethylammonium bromide or chloride, didecyldimethylammonium chloride, cetylpyridinium chloride, benzethonium chloride) and others, non-quaternary compounds, such as chlorhexidine, glucoprotamine, octenidine dihydrochloride etc.), strong oxidizers, such as ozone and permanganate solutions; heavy metals and their salts, such as colloidal silver, silver nitrate, mercury chloride, phenylmercury salts, copper sulfate, copper oxide-chloride etc. Heavy metals and their salts are the most toxic, and environment-hazardous bactericides and therefore, their use is strongly oppressed or canceled; further, also properly concentrated strong acids (phosphoric, nitric, sulfuric, amidosulfuric, toluenesulfonic acids) and alkalis (sodium, potassium, calcium hydroxides), 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 properly diluted chlorine preparations (f.e. Daquin's solution, 0.5% sodium or potassium hypochlorite solution, pH-adjusted to pH 7 – 8, or 0.5 – 1% solution of sodium benzenesulfochloramide (chloramine B)), some iodine preparations, such as iodopovidone in various galenics (ointment, solutions, wound plasters), in the past also Lugol's solution, peroxides as urea perhydrate solutions and pH-buffered 0.1 – 0.25% peracetic acid solutions, alcohols with or without antiseptic additives, used mainly for skin antisepsis, weak organic acids such as sorbic acid, benzoic acid, lactic acid and salicylic acid some phenolic compounds, such as hexachlorophene, triclosan and Dibromol, and cation-active compounds, such as 0.05 – 0.5% benzalkonium, 0.5 – 4% chlorhexidine, 0.1 – 2% octenidine solutions. 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. Also bactericidal are daptomycin, fluoroquinolones, metronidazole, nitrofurantoin, co-trimoxazole. Aminoglycosidic antibiotics are usually considered bactericidal, although they may be bacteriostatic with some organisms See also List of antibiotics Microbicide v • d • e Medication > Pharmacology Pharmacokinetics ADME: Absorption • Distribution • Metabolism • Excretion (Clearance) Loading dose • Volume of distribution (Initial) • Rate of infusion Compartment • Bioequivalence • Bioavailability Onset of action • Biological half-life • Plasma protein binding Phase 1 reaction • Phase 2 reaction Therapeutic index (LD50/ED50) Pharmacodynamics Toxicity (Neurotoxicology) • Dose-response relationship (Efficacy, Potency) Antimicrobial pharmacodynamics: Minimum inhibitory concentration/Bacteriostatic • Minimum bactericidal concentration/Bactericide Agonism and antagonism Agonist: Inverse agonist • Irreversible agonist • Partial agonist • Superagonist • Physiological agonist Antagonist: Competitive antagonist • Irreversible antagonist • Physiological antagonist Other: Binding • Affinity • Binding selectivity • Functional selectivity Other Drug tolerance: Tachyphylaxis Drug resistance: Antibiotic resistance • Multiple drug resistance Related fields/subfields Pharmacogenetics • Pharmacogenomics • Neuropsychopharmacology (Neuropharmacology, Psychopharmacology)