Tetracyclines (e.g. doxycycline), quinolones (e.g. ciprofloxacin), macrolides (e.g. clarithromycin), aminoglycosides (e.g. gentamicin) and glycopeptides (e.g. vancomycin) are all unrelated to penicillins and are safe to use in the penicillin allergic patient
Your immune system's aberrant response to the antibiotic penicillin is known as a penicillin allergy. Different bacterial infections are treated with penicillin. Hives, redness, and itching are typical penicillin allergy symptoms and indicators.
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