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Vantin (Cefpodoxime Proxetil) - Drug Interactions, Contraindications, Overdosage, etc

 
 



DRUG INTERACTIONS

Antacids

Concomitant administration of high doses of antacids (sodium bicarbonate and aluminum hydroxide) or H2 blockers reduces peak plasma levels by 24% to 42% and the extent of absorption by 27% to 32%, respectively. The rate of absorption is not altered by these concomitant medications. Oral anti-cholinergics (e.g., propantheline) delay peak plasma levels (47% increase in Tmax), but do not affect the extent of absorption (AUC).

Probenecid

As with other beta-lactam antibiotics, renal excretion of cefpodoxime was inhibited by probenecid and resulted in an approximately 31% increase in AUC and 20% increase in peak cefpodoxime plasma levels.

Nephrotoxic drugs

Although nephrotoxicity has not been noted when cefpodoxime proxetil was given alone, close monitoring of renal function is advised when cefpodoxime proxetil is administered concomitantly with compounds of known nephrotoxic potential.

OVERDOSAGE

In acute rodent toxicity studies, a single 5 g/kg oral dose produced no adverse effects.

In the event of serious toxic reaction from overdosage, hemodialysis or peritoneal dialysis may aid in the removal of cefpodoxime from the body, particularly if renal function is compromised.

The toxic symptoms following an overdose of beta-lactam antibiotics may include nausea, vomiting, epigastric distress, and diarrhea.

CONTRAINDICATIONS

Cefpodoxime proxetil is contraindicated in patients with a known allergy to cefpodoxime or to the cephalosporin group of antibiotics.

REFERENCES

  1. NCCLS. Methods for dilution antimicrobial susceptibility tests for bacteria that grow aerobically -fourth edition; Approved standard. NCCLS document M7-A4 (ISBN 1-56238-309-4). NCCLS, 940 West Valley Rd., Suite 1400, Wayne, PA 19087-1898, 1997.
  2. NCCLS. Performance standards for antimicrobial susceptibility testing; Eighth informational supplement. NCCLS document M100-S8 (ISBN 1-56238-337-x). NCCLS, 940 West Valley Rd., Suite 1400, Wayne, PA 19087-1898, 1998.
  3. NCCLS. Performance standards for antimicrobial disk susceptibility tests - sixth edition; Approved standard. NCCLS document M2-A6 (ISBN 1-56238-306-6). NCCLS, 940 West Valley Rd., Suite 1400, Wayne, PA 19087-1898, 1997.

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