Pharmacology Which of the following beta-lactam antibitotics can be safely used in a patient with a history of allergy to penicillins? A Aztreonam B Cefepime C Loracarbef D Ceftriaxone 💡 Explanation Which of the following beta-lactam antibitotics can be safely used in a patient with a history of allergy to penicillins? ✓ Correct Answer: A. Aztreonam