Drug interactions
Chenodeoxycholic acid + Sirolimus
Severity: Major
Chenodeoxycholic acid and Sirolimus: major interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Sirolimus may inhibit CYP27A1 and reduce bile acid synthesis, potentially compromising chenodeoxycholic acid therapy. Biochemical control could worsen.
What this interaction means in plain words
Chenodeoxycholic acid and Sirolimus can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Chenodeoxycholic acid belongs to Gastrointestinal Tract; Sirolimus belongs to Miscellaneous.
Why it happens
CYP27A1 inhibition by sirolimus reduces bile acid synthesis.
What to do
Avoid if possible; otherwise monitor serum bile alcohols and adjust the chenodeoxycholic acid dose.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Chenodeoxycholic acid
Other interactions of Sirolimus
- Adenovirus types 4 and 7 live + Sirolimus Contraindicated
- Bcg vaccine live + Sirolimus Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Sirolimus Contraindicated
- Ketoconazole + Sirolimus Contraindicated
- Levoketoconazole + Sirolimus Contraindicated
- Measles mumps and rubella vaccine live + Sirolimus Contraindicated
Frequently asked questions
Can I take Chenodeoxycholic acid with Sirolimus?
MediHelp rates the interaction as major. Chenodeoxycholic acid and Sirolimus can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Sirolimus may inhibit CYP27A1 and reduce bile acid synthesis, potentially compromising chenodeoxycholic acid therapy. Biochemical control could worsen.
How serious is the interaction between Chenodeoxycholic acid and Sirolimus?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid if possible; otherwise monitor serum bile alcohols and adjust the chenodeoxycholic acid dose.
What other medicines interact with Chenodeoxycholic acid?
MediHelp also lists interactions of Chenodeoxycholic acid with, for example, Cyclosporin, Aluminum hydroxide, Colestipol. The full list is on the Chenodeoxycholic acid page.
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