Erythromycin is commonly used to prevent and treat infections in many parts of the body. Which statement best describes its use?

• A. Used to prevent and treat infections in many different parts of the body.
• B. Treat infections only in the skin.
• C. Act as a moisturizer.
• D. Reduce sebum production.

Answer: (A)

Erythromycin is an antibiotic that works by stopping bacterial protein synthesis, so it can combat infections caused by susceptible bacteria in many parts of the body. It’s used not only to treat a range of infections—from respiratory and skin infections to GI and ocular infections—but also as prophylaxis in certain situations (for example, in penicillin-allergic patients or before some procedures). It is not a moisturizer, nor does it reduce sebum production, and while it can be used topically for acne due to its antibacterial effect on skin bacteria, its broader role is to prevent and treat infections in diverse body areas. That broad and adaptable use is why the statement describing its use as preventing and treating infections in many parts of the body is the best fit.