.

ANTACIDS AND ZINC

Medical Diagnosis and Drugs, Medications
Calcium (either as the carbonate or the citrate) reduces the AUC of zinc by up to 80%.
The clinical importance of this interaction is unknown, but it would seem prudent to separate the administration of zinc and calcium. Note that separating the dosing by 2 to 3 hours minimises other absorption interactions with antacids.
(0)