This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment.
Moderate. These medicines may cause some risk when taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.
How the interaction occurs:
Some medicines increase the activity of dopamine in the brain. Antipsychotic medicines block the activity of dopamine in certain parts of the brain.
What might happen:
Each medicine could counteract the beneficial effects of the other, so one or both medicines may not work as well.
What you should do about this interaction:
Let your healthcare professionals (e.g. doctor or pharmacist) know that you are taking these medicines together.Your healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.
1.Requip (ropinirole hydrochloride) US prescribing information. GlaxoSmithKline October, 2006.
2.Sinemet (carbidopa/levodopa) US prescribing information. Merck & Co., Inc February, 2011.
3.Stalevo (carbidopa; entacapone; levodopa) US Prescribing Information. Orion/Novartis October 11, 2010.
4.Comtan (entacapone) US prescribing information. Orion Corporation June, 2014.
5.Marras C, Gruneir A, Wang X, Fischer H, Gill SS, Herrmann N, Anderson GM, Hyson C, Rochon PA. Antipsychotics and mortality in Parkinsonism. Am J Geriatr Psychiatry 2012 Feb;20(2):149-58.
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