Which specific immunosuppressant drug may see increased blood levels when taken concurrently with berberine?
Answer
Cyclosporine
The complex web of drug interactions involving berberine includes specific impacts on prescribed medications like immunosuppressants. Berberine has been indicated as potentially increasing the circulating blood levels of Cyclosporine. Cyclosporine is a vital drug used to prevent organ rejection in transplant recipients, and maintaining its concentration within a narrow therapeutic window is crucial for efficacy while avoiding toxicity. An elevation caused by berberine inhibition of drug clearance mechanisms requires careful management, often necessitating dose adjustments or the avoidance of the herb entirely in these patients.

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