A child with permanently stained teeth reports, He was most probably administered_____________?

Correct answer: D. Doxycycline

  • A. Disphenyl hydantoin
  • B. Diphenhydramine
  • C. Digoxin
  • D. Doxycycline

Explanation

Doxycycline, a tetracycline, binds calcium in developing teeth and bones, causing permanent tooth discoloration and enamel defects. Digoxin, diphenylhydantoin and diphenhydramine do not characteristically stain teeth.

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