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PTECH Pharmaceutics II (Industrial & Quality Control) QUESTION #5704
Question 1
What is the therapeutic incompatibility of combining Tetracycline with milk?
  • Increased absorption
  • Inactivation due to chelation with Calcium✔️
  • Enhanced renal excretion
  • Precipitation in the stomach
Correct Answer Explanation
Tetracycline chelates with divalent cations like $Ca^{2+}$ in milk, preventing its absorption.