(6R,7R)-7-[[(2R)-2-azaniumyl-2-phenylacetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

DescriptionCephalexin is a cephalosporin antibiotic that is used to examine the impact of binding, expression, and inhibition of PBP3 as well as additional penicillin-binding proteins (PBPs) on the cell wall during bacterial mucopeptide synthesis. Cephalexin is used for the treatment of infection-causing bacteria that may induce ear, respiratory, urinary tract, and skin infections. Bacteria that are defenseless against Cephalexin may include Streptococcus pneumonia, Staphylococcus aureus, E. coli, and Haemophilus influenza. Cephalexin is also referred to as Keflex (brand name), and it does not relieve viral infections such as flu or colds.

UsesCephalexin is administered to minimize the development of bacteria that are resistant to drugs. To maintain the overall effectiveness of Cephalexin, the drug should be prescribed as a treatment for infections that can be attributed to bacteria. The availability of susceptibility and culture information should be put into consideration while making modifications to antibacterial therapy. The absence of such information may be backed by susceptibility and epidemiology patterns to influence verifiable adoption of treatment. In some cases, Cephalexin is used for the treatment of patients who are allergic to penicillin and may have a heart condition at the time when they are undergoing a procedure on their respiratory tract, to inhibit the development of infection on their heart valves.

DescriptionUse of the ampicillin-type side chain conveys oral activity to cephalexin. Whereas it no longer has an activating side chain at C-3 and, as a consequence, is somewhat less potent, it does not undergo metabolic deactivation and, thus, maintains potency. It is rapidly and completely absorbed from the GI tract and has become quite popular. Somewhat puzzling is the fact that the use of the ampicillin side chain in the cephalosporins does not result in a comparable shift in antimicrobial spectrum. Cephalexin, like the other first-generation cephalosporins is active against many Gram-positive aerobic cocci but is limited against Gram-negative bacteria. It is a widely used drug, particularly against Gram-negative bacteria causing urinary tract infections, Gram-positive infections (Staphyl ococcus aureus, Streptococcus pneumoni ae and Streptococcus pyogenes) of soft tissues, pharyngitis, and minor wounds.

UsesAntibacterial.

DefinitionChEBI: A semisynthetic first-generation cephalosporin antibiotic having methyl and beta-(2R)-2-amino-2-phenylacetamido groups at the 3- and 7- of the cephem skeleton, respectively. It is effective against both Gram-negative and G am-positive organisms, and is used for treatment of infections of the skin, respiratory tract and urinary tract.