Multiple choice

______ were the first drugs to be used systematically for treatment and prophylaxis of bacterial infections in man.

  1. Sulfonamides

  2. Oxytetracyclines

  3. Desonides

  4. Xanthine derivatives

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sulfonamides were the first systematically used antibacterial drugs in humans, introduced in the 1930s before penicillin became widely available. They inhibit bacterial folic acid synthesis. The other options are incorrect - Oxytetracyclines are tetracycline antibiotics, Desonides is a corticosteroid, and Xanthine derivatives are bronchodilators.