Carbidopa and Tolcapone interaction
Carbidopa and Tolcapone: the Tolcapone prescribing label flags this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Tolcapone label · effective 2020-10-01
WARNING Because of the risk of potentially fatal, acute fulminant liver failure, Tolcapone tablets should ordinarily be used in patients with Parkinson's disease on l-dopa/carbidopa who are experiencing symptom fluctuations and are not responding satisfactorily to or are not appropriate candidates for other adjunctive therapies (see INDICATIONS and DOSAGE AND…
…BOXED WARNING ) Because of the risk of potentially fatal, acute fulminant liver failure, Tolcapone tablets should ordinarily be used in patients with Parkinson's disease on l-dopa/carbidopa who are experiencing symptom fluctuations and are not responding satisfactorily to or are not appropriate candidates for other adjunctive therapies (see INDICATIONS and DOSAGE…
Falling Asleep During Activities of Daily Living and Somnolence Tolcapone increases plasma levels of levodopa in patients taking concomitant carbidopa levodopa products (see DOSAGE AND ADMINISTRATION ).
Therefore, caution should be exercised when desipramine is administered to Parkinson's disease patients being treated with Tolcapone tablets and levodopa/carbidopa.
These reports are associated with patients taking Tolcapone tablets in conjunction with carbidopa/levodopa, as well as other medications that increase central dopaminergic tone and that are used to treat patients with Parkinson’s disease.
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.