Drug interactions
Cyclosporin + Glycerol phenylbutyrate
Severity: Moderate
Cyclosporin and Glycerol phenylbutyrate: moderate 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
Glycerol phenylbutyrate is a weak CYP3A4 inducer and may lower cyclosporine concentrations. Reduced exposure could compromise immunosuppression.
What this interaction means in plain words
Cyclosporin and Glycerol phenylbutyrate can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Cyclosporin belongs to Miscellaneous; Glycerol phenylbutyrate belongs to Miscellaneous.
Why it happens
Weak induction of CYP3A4 increases cyclosporine metabolism.
What to do
Monitor cyclosporine trough levels after starting or stopping glycerol phenylbutyrate and adjust the dose if needed.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Cyclosporin
- Adenovirus types 4 and 7 live + Cyclosporin Contraindicated
- Aliskiren + Cyclosporin Contraindicated
- Bcg vaccine live + Cyclosporin Contraindicated
- Bosentan + Cyclosporin Contraindicated
- Cidofovir + Cyclosporin Contraindicated
- Cyclosporin + Dengue vaccine Contraindicated
Other interactions of Glycerol phenylbutyrate
- Dexamethasone + Glycerol phenylbutyrate Major
- Glycerol phenylbutyrate + Sodium valproate Major
- Glycerol phenylbutyrate + Valproic acid Major
- Dexamethasone-neomycin-polymyxin + Glycerol phenylbutyrate Moderate
- Dexamethasone-tobramycin + Glycerol phenylbutyrate Moderate
- Fludrocortisone + Glycerol phenylbutyrate Moderate
Frequently asked questions
Can I take Cyclosporin with Glycerol phenylbutyrate?
MediHelp rates the interaction as moderate. Cyclosporin and Glycerol phenylbutyrate can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Glycerol phenylbutyrate is a weak CYP3A4 inducer and may lower cyclosporine concentrations. Reduced exposure could compromise immunosuppression.
How serious is the interaction between Cyclosporin and Glycerol phenylbutyrate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor cyclosporine trough levels after starting or stopping glycerol phenylbutyrate and adjust the dose if needed.
What other medicines interact with Cyclosporin?
MediHelp also lists interactions of Cyclosporin with, for example, Adenovirus types 4 and 7 live, Aliskiren, Bcg vaccine live. The full list is on the Cyclosporin page.
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