Which medication is the first-line treatment for acne in adolescents?

Which medication is the first-line treatment for acne in adolescents?

• A. Tretinoin
• B. Doxycycline
• C. Clindamycin
• D. Benzoyl peroxide

Answer: (D)

Benzoyl peroxide is typically the first choice for treating acne in adolescence because it directly targets the bacteria on the skin (Propionibacterium acnes) and has anti-inflammatory and keratolytic effects, helping to prevent new lesions and clear existing ones. It works without promoting antibiotic resistance, and it’s widely accessible over the counter, making it a practical starting point for mild to moderate acne. It can be used alone for milder cases or in combination with a retinoid or antibiotic if the acne is more inflammatory or widespread. Doxycycline is an oral antibiotic reserved for more moderate to severe or inflammatory acne and carries risks of systemic side effects and antibiotic resistance, so it isn’t a first-line choice. Clindamycin, a topical antibiotic, can be effective but is best used with benzoyl peroxide to reduce resistance, rather than as the sole initial therapy. Tretinoin, a topical retinoid, is also a strong option—especially for comedonal acne—but many guidelines start with benzoyl peroxide (or use it in combination) to minimize irritation while addressing a broad range of lesions.

Benzoyl peroxide is typically the first choice for treating acne in adolescence because it directly targets the bacteria on the skin (Propionibacterium acnes) and has anti-inflammatory and keratolytic effects, helping to prevent new lesions and clear existing ones. It works without promoting antibiotic resistance, and it’s widely accessible over the counter, making it a practical starting point for mild to moderate acne. It can be used alone for milder cases or in combination with a retinoid or antibiotic if the acne is more inflammatory or widespread.

Doxycycline is an oral antibiotic reserved for more moderate to severe or inflammatory acne and carries risks of systemic side effects and antibiotic resistance, so it isn’t a first-line choice. Clindamycin, a topical antibiotic, can be effective but is best used with benzoyl peroxide to reduce resistance, rather than as the sole initial therapy. Tretinoin, a topical retinoid, is also a strong option—especially for comedonal acne—but many guidelines start with benzoyl peroxide (or use it in combination) to minimize irritation while addressing a broad range of lesions.