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Cefalexin is a β-lactam antibiotic of the cephalosporin family. [27] It is bactericidal and acts by inhibiting synthesis of the peptidoglycan layer of the bacterial cell wall. [ 28 ] As cefalexin closely resembles d-alanyl-d-alanine, an amino acid ending on the peptidoglycan layer of the cell wall, it can irreversibly bind to the active site ...
metronidazole – antibiotic against anaerobic bacteria; milbemycin oxime – broad spectrum antiparasitic used as an anthelmintic, insecticide and miticide; mirtazapine – antiemetic and appetite stimulant in cats and dogs; mitratapide – used to help weight loss in dogs; morphine – pure mu agonist/opioid analgesic used as a premedication
Cefovecin is an antibiotic of the cephalosporin class, licensed for the treatment of skin infections in cats and dogs. It is marketed by Zoetis under the trade name Convenia. It is used to treat skin infections caused by Pasteurella multocida in cats, and Staphylococcus intermedius and Streptococcus canis in dogs. The advantage of using a long ...
cephalexin: Keflex: H V: Gram-positive: Activity against penicillinase-producing, methicillin-susceptible staphylococci and streptococci (though they are not the drugs of choice for such infections). No activity against methicillin-resistant staphylococci or enterococci. [citation needed]
Opening of the β-lactam ring by a serine residue in the enzyme binding site leads to covalent binding of the antibiotic molecule with the active site of the enzyme. The result is an inactive irreversibly bound enzyme-complex which is incapable of further cell wall synthesis and the cell will die from osmotic-lysis.
The antimicrobial spectrum of an antibiotic can be determined by testing its antimicrobial activity against a wide range of microbes in vitro. Nonetheless, the range of microorganisms which an antibiotic can kill or inhibit in vivo may not always be the same as the antimicrobial spectrum based on data collected in vitro. [2] [5]