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Drug Interactions between Cymbalta and lansoprazole

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Minor

lansoprazole DULoxetine

Applies to: lansoprazole and Cymbalta (duloxetine)

Coadministration of enteric-coated duloxetine with substances that raise gastrointestinal pH may result in earlier release of duloxetine from the formulation, potentially leading to gastric or duodenal irritation. The enteric coating is intended to resist drug dissolution until reaching a segment of the gastrointestinal tract where the pH exceeds 5.5. However, coadministration with aluminum- and magnesium-containing antacids (51 mEq) or famotidine has been shown to have no significant effect on the rate or extent of duloxetine absorption following administration of a 40 mg oral dose. It is unknown whether concomitant administration of proton pump inhibitors would affect duloxetine absorption.

References (1)
  1. (2004) "Product Information. Cymbalta (duloxetine)." Lilly, Eli and Company

Drug and food interactions

Moderate

DULoxetine food

Applies to: Cymbalta (duloxetine)

GENERALLY AVOID: Use of duloxetine in conjunction with chronic alcohol consumption may potentiate the risk of liver injury. Duloxetine alone can increase serum transaminase levels. In clinical trials, 0.3% of patients discontinued duloxetine due to liver transaminase elevations. The median time to detection was about two months. Three duloxetine-treated patients had liver injury as manifested by transaminase and bilirubin elevations, with evidence of obstruction. Substantial intercurrent ethanol use was present in each of these cases, which may have contributed to the abnormalities observed. Duloxetine does not appear to enhance the central nervous system effects of alcohol. When duloxetine and ethanol were administered several hours apart so that peak concentrations of each would coincide, duloxetine did not increase the impairment of mental and motor skills caused by alcohol.

MANAGEMENT: Due to the risk of liver injury, patients prescribed duloxetine should be counseled to avoid excessive use of alcohol. Duloxetine should generally not be prescribed to patients with substantial alcohol use.

References (1)
  1. (2004) "Product Information. Cymbalta (duloxetine)." Lilly, Eli and Company

Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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