Penicillin-binding proteins are bacterial proteins that help to catalyze the last stages of peptidoglycan synthesis, which is needed to maintain the cell wall. They remove the D-alanine from the precursor of the peptidoglycan. The lack of synthesis causes the bacteria to lyse because they also continually break down their cell walls. Cefazolin is bactericidal, meaning it kills the bacteria rather than inhibiting their growth. Cost
Cefazolin is relatively inexpensive. Trade names
It was initially marketed by GlaxoSmithKline under the trade name Ancef.Other trade names include: Cefacidal, Cefamezin, Cefrina, Elzogram, Faxilen, Gramaxin, Kefol, Kefzol, Kefzolan, Kezolin, Novaporin, Reflin, Zinol, and Zolicef. References
External links
MedlinePlus Drug Information: Cefazolin Sodium Injection.
Erythema multiforme  is usually a reaction of the skin and mucous membranes that occurs suddenly. It appears as a symmetrical rash and may include the mucous membrane lesions. This means that the body is sensitive to something that causes the skin and mucous membranes to react. The more common mild form is refer to as EM minor. It consists of a skin rash that involve no more than one mucosal surface. The sudden onset will progress rapidly as symmetrical lesions with circular color changes in some or all of the lesions. Rash will spread towards center or trunk of the body. Evenly distributed bumps on the skin become classic iris or target lesions. They have bright red borders and small white bumps in the center. The cause of EM appears to be a highly sensitive reaction that can be triggered by a variety of causes. The causes can include bacterial, viral or chemical products, such as antibiotics – specifically penicillins or cephalosporins. This reaction is an allergic reaction and is in no way contagious. : 140 Erythema multiforme minor is sometimes divided into papular and vesiculobullous forms. See also
Erythema
Diascopy
Erythema multiforme
List of cutaneous conditions

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