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Drug Interactions between mefenamic acid and ranitidine bismuth citrate

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

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Interactions between your drugs

Minor

mefenamic acid raNITIdine bismuth citrate

Applies to: mefenamic acid and ranitidine bismuth citrate

H2 antagonists may alter the pharmacokinetic disposition of some nonsteroidal anti-inflammatory drugs (NSAIDs), resulting in increased or decreased plasma concentrations. Data have been varied, even for the same NSAID. The mechanism may involve inhibition of metabolism, changes in gastric pH resulting in altered absorption, and/or reduced urinary elimination of the affected NSAIDs. Statistically significant changes have been small and of limited clinical significance when interactions have been observed.

References (5)
  1. Said SA, Foda AM (1989) "Influence of cimetidine on the pharmacokinetics of piroxicam in rat and man." Arzneimittelforschung, 39, p. 790-2
  2. Scavone JM, Greenblatt DJ, Matlis R, Harmatz JS (1986) "Interaction of oxaprozin with acetaminophen, cimetidine, and ranitidine." Eur J Clin Pharmacol, 31, p. 371-4
  3. (2001) "Product Information. Daypro (oxaprozin)." Searle
  4. "Product Information. DurAct (bromfenac)." Wyeth-Ayerst Laboratories
  5. Cerner Multum, Inc. "UK Summary of Product Characteristics."

Drug and food interactions

Moderate

mefenamic acid food

Applies to: mefenamic acid

GENERALLY AVOID: The concurrent use of aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs) and ethanol may lead to gastrointestinal (GI) blood loss. The mechanism may be due to a combined local effect as well as inhibition of prostaglandins leading to decreased integrity of the GI lining.

MANAGEMENT: Patients should be counseled on this potential interaction and advised to refrain from alcohol consumption while taking aspirin or NSAIDs.

References (1)
  1. (2002) "Product Information. Motrin (ibuprofen)." Pharmacia and Upjohn

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.


Report options

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.