An antibacterial mixture obtained from peptone cultures of Bacillus brevis; bactericidal and bacteriostatic, and active against Gram-positive bacteria. It yields the crystalline antibacterial agents gramicidin and tyrocidin; the gramicidin component is a polypeptide containing l-tryptophan, d-leucine, d-valine, l-valine, l-alanine, glycine, and an aminoethanol; the tyrocidin component is a cyclopolypeptide containing tyrosine, ornithine, and several other amino acid s.

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ty·ro·thri·cin .tī-rə-'thrīs-ən n an antibiotic mixture that consists chiefly of tyrocidine and gramicidin, is obtained from a soil bacterium of the genus Bacillus (B. brevis), and is used in the topical treatment of infections esp. of the skin and mouth caused by gram-positive bacteria

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an antibiotic derived from the bacterium Bacillus brevis. It is used in combination with benzocaine, in the form of lozenges (Tyrozets), in the treatment of infections of the mouth and throat.

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ty·ro·thri·cin (ti″ro-thriґsin) an antibiotic substance isolated from the soil bacillus Bacillus brevis, consisting principally of two polypeptides, the major one being tyrocidine and the other gramicidin. It is effective against many gram-positive bacteria, and is applied topically in pyodermic, ocular, and other localized infections due to susceptible organisms.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Tyrothricin — Strukturformel Allgemeines Freiname Tyrothricin Summenf …   Deutsch Wikipedia

  • Tyrothricin — Ty|ro|thri|cin [nlat. Tyrothrix, eine Art sporenbildender Bakterien (griech. tyrós = Käse u. thríx = Haar); ↑ in (3)], das; s, e: Freiname für ein haupts. gegen grampositive Bakterien wirksames Antibiotikagemisch aus Tyrocidinen u. Gramicidinen.… …   Universal-Lexikon

  • Tyrothricin — drugbox IUPAC name = CAS number = 1404 88 2 ATC prefix = D06 ATC suffix = AX08 ATC supplemental = ATC|R02|AB02 ATC|S01|AA05 PubChem = DrugBank = chemical formula = molecular weight = bioavailability = protein bound = metabolism = elimination half …   Wikipedia

  • tyrothricin — noun Etymology: New Latin Tyrothoric , Tyrothrix, genus name formerly applied to various bacteria Date: 1940 an antibiotic mixture consisting chiefly of tyrocidine and gramicidin and used topically especially against gram positive bacteria …   New Collegiate Dictionary

  • tyrothricin — ty·ro·thri·cin (tī rō thrīʹsĭn) n. A gray brown mixture consisting mainly of tryocidine and gramicidin, used as a topical antibiotic in treating infections caused by gram positive bacteria.   [New Latin Tȳrothrix, former bacteria genus name… …   Universalium

  • tyrothricin — noun a mixture of the antibiotics tyrocidine and gramicidin, used topically to treat gram positive bacterial infections …   Wiktionary

  • tyrothricin — n. antibiotic medication extracted from certain soil bacteria and mostly used externally (Pharmacology) …   English contemporary dictionary

  • tyrothricin — ty·ro·thricin …   English syllables

  • tyrothricin — noun a mixture of antibiotics applied locally to infections caused by Gram positive bacteria • Hypernyms: ↑antibiotic, ↑antibiotic drug • Substance Meronyms: ↑tyrocidine, ↑tyrocidin …   Useful english dictionary

  • Tyrocidine — chembox new ImageFile= Tyrocidine.png ImageSize= 300px IUPACName= 3 ((3S,6R,9S,12S,15S,18S,21S,24S,27R,32aS) 9 (2 amino 2 oxoethyl) 21 (3 aminopropyl) 3,6,27 tribenzyl 15 (4 hydroxybenzyl) 24 isobutyl 18 isopropyl 1,4,7,10,13,16,19,22,25,28… …   Wikipedia

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