Which is a first-line pharmacotherapy for oral candidiasis (thrush)?

Which is a first-line pharmacotherapy for oral candidiasis (thrush)?

• A. Fluconazole
• B. Nystatin oral suspension
• C. Clotrimazole troches
• D. Nystatin tablets

Answer: (B)

Oral candidiasis is treated most effectively at first with a topical antifungal to maximize local activity in the mouth. Nystatin oral suspension fits this role well because it stays in the mouth to coat the mucosa and has minimal systemic absorption, reducing potential systemic side effects. The patient swishes the suspension in the mouth for several minutes and then swallows, ensuring contact with the infected surfaces. This local approach quickly reduces fungal load and resolves symptoms in uncomplicated cases. Systemic antifungals like fluconazole are reserved for more extensive disease, recurrence, or poor response to topical therapy, and are associated with more drug interactions and systemic effects. Clotrimazole troches are also effective but require prolonged dissolution in the mouth. Nystatin tablets are less favored due to limited mucosal contact and variable efficacy. Therefore, a topical nystatin suspension is the best initial choice for straightforward thrush.

Oral candidiasis is treated most effectively at first with a topical antifungal to maximize local activity in the mouth. Nystatin oral suspension fits this role well because it stays in the mouth to coat the mucosa and has minimal systemic absorption, reducing potential systemic side effects. The patient swishes the suspension in the mouth for several minutes and then swallows, ensuring contact with the infected surfaces. This local approach quickly reduces fungal load and resolves symptoms in uncomplicated cases.

Systemic antifungals like fluconazole are reserved for more extensive disease, recurrence, or poor response to topical therapy, and are associated with more drug interactions and systemic effects. Clotrimazole troches are also effective but require prolonged dissolution in the mouth. Nystatin tablets are less favored due to limited mucosal contact and variable efficacy. Therefore, a topical nystatin suspension is the best initial choice for straightforward thrush.