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The contraindication, however, should be viewed in the light of recent epidemiological work suggesting, for many second-generation (or later) cephalosporins, the cross-reactivity rate with penicillin is much lower, having no significantly increased risk of reactivity over the first generation based on the studies examined.
Nevertheless, the risk of cross-reactivity is sufficient to warrant the contraindication of all β-lactam antibiotics in patients with a history of severe allergic reactions (urticaria, anaphylaxis, interstitial nephritis) to any β-lactam antibiotic. Rarely, allergic reactions have been triggered by exposure from kissing and sexual contact ...
Cefazolin, also known as cefazoline and cephazolin, is a first-generation cephalosporin antibiotic used for the treatment of a number of bacterial infections. [2] Specifically it is used to treat cellulitis, urinary tract infections, pneumonia, endocarditis, joint infection, and biliary tract infections. [2]
Since MRSA and penicillin-resistant Streptococcus pneumoniae have resistance dedicated to new types of PBP, PBP2a and PBP2x respectively, both ceftaroline and ceftobiprole have C-3 side chains specially engineered to bind these new PBP. In the case of ceftaroline this side chain contains a 2-thioazolythio spacer linkage optimised for its anti ...
Monobactam antibiotics exhibit no IgE cross-reactivity reactions with penicillin but have shown some cross reactivity with cephalosporins, most notably ceftazidime, which contains an identical side chain as aztreonam. [8] Monobactams can trigger seizures in patients with history of seizures, although the risk is lower than with penicillins.
The following table lists opioid and non-opioid analgesic drugs and their relative potencies. Values for the potencies represent opioids taken orally unless another route of administration is provided. As such, their bioavailabilities differ, and they may be more potent when taken intravenously. [citation needed]
Cross-reactivity, in a general sense, is the reactivity of an observed agent which initiates reactions outside the main reaction expected. This has implications for any kind of test or assay , including diagnostic tests in medicine, and can be a cause of false positives .
Cefotaxime is contraindicated in patients with a known hypersensitivity to cefotaxime or other cephalosporins. Caution should be used and risks weighed against potential benefits in patients with an allergy to penicillin, due to cross-reactivity between the classes. [citation needed] The most common adverse reactions experienced are: