<p><strong>Antacids</strong>: Cefdinir should be taken at least 2 hours interval of antacid administration.<br />
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<strong>Iron supplement</strong>: Cefdinir should be taken at least 2 hours interval of iron supplement administration.<br />
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<strong>Probencid</strong>: It inhibits the renal excretion of cefdinir.</p>