Which Antibiotic Is Associated With This Presentation?

A 35-year-old male presents to his family physician with progressive heel pain. He denies any recent trauma and mentions the pain has worsened in the last two days, affecting his ability to walk. He has recently completed a course of antibiotics. On examination, there is warmth, erythema, and tenderness over his right Achilles tendon. Which of the following antibiotics is associated with this presentation?

A. Cephalexin
B. Amoxicillin
C. Ciprofloxacin
D. Erythromycin

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