mycophenolate mofetil (CellCept)

  • Pharmacy Author:
    Omudhome Ogbru, PharmD

    Dr. Ogbru received his Doctorate in Pharmacy from the University of the Pacific School of Pharmacy in 1995. He completed a Pharmacy Practice Residency at the University of Arizona/University Medical Center in 1996. He was a Professor of Pharmacy Practice and a Regional Clerkship Coordinator for the University of the Pacific School of Pharmacy from 1996-99.

  • Medical and Pharmacy Editor: Jay W. Marks, MD
    Jay W. Marks, MD

    Jay W. Marks, MD

    Jay W. Marks, MD, is a board-certified internist and gastroenterologist. He graduated from Yale University School of Medicine and trained in internal medicine and gastroenterology at UCLA/Cedars-Sinai Medical Center in Los Angeles.

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DRUG INTERACTIONS:

Co-administration of acyclovir (Zovirax) or ganciclovir (Cytovene, Vitrasert, Zirgan) and mycophenolate mofetil may cause an increase in blood levels of mycophenolate mofetil and the interacting drug since these drugs compete with each other for elimination via the kidneys.

Antacids containing magnesium or aluminum hydroxide may decrease MPA blood levels. If combination use is necessary, administration of the two medications must be separated by several hours.

Proton pump inhibitors (PPIs) such as lansoprazole (Prevacid), pantoprazole (Protonix), and omeprazole (Prilosec) have been shown to reduce MPA blood levels. This effect may be due to a decrease in mycophenolate mofetil solubility caused by reduced acid secretion in the stomach caused by PPIs.

Cholestyramine (Questran, Questran Light) may cause a decrease in MPA blood levels by binding to it in the intestine and preventing its absorption.

Cyclosporine (Sandimmune) may decrease MPA blood levels. Cyclosporine inhibits multidrug-resistant-associated protein 2 (MRP-2) transporter in the biliary tract, and this prevents the excretion of MPA into bile and elimination from the body.

Medically Reviewed by a Doctor on 6/2/2015

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