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Drug Interactions between Acid Controller Maximum Strength and dabigatran

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

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Interactions between your drugs

Moderate

famotidine dabigatran

Applies to: Acid Controller Maximum Strength (famotidine) and dabigatran

MONITOR: Patients with gastrointestinal conditions may have an increased risk of gastrointestinal bleeding during concomitant treatment with dabigatran etexilate and proton pump inhibitors or H2 blockers. In addition, pantoprazole resulted in an approximately 30% decrease in dabigatran systemic exposure (AUC). Diminished clinical effect may occur, although no dosage adjustment is recommended for dabigatran etexilate. The pharmacokinetics of pantoprazole were not significantly altered by dabigatran. Pantoprazole and other proton pump inhibitors were also coadministered with dabigatran in clinical trials for the prevention of venous thromboembolic events after hip- or knee-replacement surgery, and no effects on bleeding or efficacy were observed. Ranitidine had no significant effects on the absorption of dabigatran.

MANAGEMENT: Patients should be monitored for signs of gastrointestinal bleeding and advised to promptly report any symptoms to their physician, such as abdominal pain, dizziness, lightheadedness, vomiting blood, anorexia, and/or black, tarry stools.

References (4)
  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. Cerner Multum, Inc. "Australian Product Information."
  3. (2008) "Product Information. Pradax (dabigatran)." Boehringer Ingelheim (Canada) Ltd
  4. (2010) "Product Information. Pradaxa (dabigatran)." Boehringer-Ingelheim

Drug and food interactions

Minor

famotidine food

Applies to: Acid Controller Maximum Strength (famotidine)

H2 antagonists may reduce the clearance of nicotine. Cimetidine, 600 mg given twice a day for two days, reduced clearance of an intravenous nicotine dose by 30%. Ranitidine, 300 mg given twice a day for two days, reduced clearance by 10%. The clinical significance of this interaction is not known. Patients should be monitored for increased nicotine effects when using the patches or gum for smoking cessation and dosage adjustments should be made as appropriate.

References (1)
  1. Bendayan R, Sullivan JT, Shaw C, Frecker RC, Sellers EM (1990) "Effect of cimetidine and ranitidine on the hepatic and renal elimination of nicotine in humans." Eur J Clin Pharmacol, 38, p. 165-9

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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