Cholestyramine and Meloxicam: Interaction Details
AI-assisted, pharmacist-reviewed · Source data updated Aug 8, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Cholestyramine
Meloxicam
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
What happens
An increased clearance of meloxicam
Interaction Deep Dive
A recirculation pathway for meloxicam may exist in the gastrointestinal tract. This results in an increase in clearance of meloxicam by approximately 50%, a decrease in half-life from 19.2 hours to 12.5 hours, as well as a reduction in the AUC by 35%1.
Why it happens (mechanism)
Unknown
Common questions
Can I take Cholestyramine and Meloxicam together?
An increased clearance of meloxicam Always confirm with your pharmacist or prescriber before making any change.
How serious is the Cholestyramine and Meloxicam interaction?
It is rated moderate. Can be significant — usually manageable with monitoring.
How quickly could this interaction happen?
The documented onset is "rapid". Effects can appear quickly, often within about 24 hours of combining the drugs.
How strong is the evidence for this interaction?
The evidence is graded "probable". Good supporting evidence, though not definitively proven.
From our Q&A
Real reader questions about these medications, each personally answered by our pharmacist:
Questions for your pharmacist
- Does my dose of Cholestyramine or Meloxicam need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there anything you'd monitor while I'm on both?
References (1)
- Product Information: MOBIC(R) oral tablets, suspension, meloxicam oral tablets, suspension. Boehringer Ingelheim, Ridgefield, CT, 2008.
Keep reading about Cholestyramine
Keep reading about Meloxicam
These medications also interact with supplements
Prescription drugs aren't the whole picture — herbal and dietary supplements can interact with them too. From the evidence-graded Natural Medicines database:
major · moderate · minor — check everything you take with our drug–supplement interaction checker.
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