Which of the following is a therapeutic drug class for ibuprofen?

A. Chlorhexidine possesses broad-spectrum antimicrobial activity but is not a primary treatment for oral herpes virus. It does not inhibit viral DNA polymerase like acyclovir. This agent is not FDA-approved for the management of viral infections.

B. Gingivitis is a labeled indication for chlorhexidine gluconate oral rinse. It provides antimicrobial activity by disrupting the plasma membrane of bacterial cells. This reduces dental plaque and gingival inflammation between dental visits.

C. Vaginal candidiasis is typically managed with antifungal agents like fluconazole or miconazole. Chlorhexidine is not indicated for the treatment of fungal infections within the vaginal vault. Its therapeutic use is restricted to topical or oral mucosal applications.

D. Cryptococcal meningitis is a severe fungal infection of the central nervous system requiring systemic amphotericin B. Chlorhexidine does not cross the blood-brain barrier and lacks the necessary systemic distribution. It is not an approved treatment for meningitis.

A. Nystatin is a polyene antifungal medication primarily used to treat candidiasis. It targets fungal cell membranes by binding to ergosterol, creating pores that lead to cell death. It is not the active constituent found in the SF 5000 Plus formulation.

B. SF 5000 Plus is a high-concentration prescription dentifrice containing 1.1% sodium fluoride. It is indicated for the prevention of dental caries and the remineralization of tooth enamel. The designation SF 5000 directly refers to the 5000 parts per million concentration.

C. Chlorhexidine is a biguanide antiseptic used to reduce oral bacteria and treat gingivitis. It functions by disrupting the microbial cell membrane through cationic binding. While used in oral health, it is not the generic component of the SF series.

D. Sulfamethoxazole is a sulfonamide antibiotic that inhibits bacterial dihydropteroate synthase in the folic acid synthesis pathway. It is typically used for systemic infections like urinary tract infections. It bears no clinical or chemical relationship to the topical fluoride product.