Oral infection by penicillinase producing organisms should be treated with____________?

Correct answer: B. Dicloxacillin

  • A. Ampicillin
  • B. Dicloxacillin
  • C. Erythromycin
  • D. Any of the above

Explanation

Dicloxacillin resists staphylococcal penicillinase and is well absorbed orally, making it useful for infections caused by penicillinase-producing organisms. Ampicillin is inactivated by this enzyme, while erythromycin is an alternative rather than the best answer here.

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