Which medication is most effective for treating oropharyngeal and esophageal candidiasis that develops after prolonged use of broad-spectrum antibiotics?

Explanation

Oropharyngeal and esophageal candidiasis, often occurring after extended broad-spectrum antibiotic treatment, responds best to antifungal agents like fluconazole. Griseofulvin is primarily used for dermatophyte infections, amphotericin B is reserved for severe systemic fungal infections, sulfonamides are antibacterial agents, and nystatin is typically used topically.