My WebMD Sign In

Please enter email address

Enter your password

Keep me signed in on this computer

Show more Information

If you select "Keep me signed in on this computer", every time you visit WebMD.com you won't have to type your email address and password. This means that a cookie will stay on your computer even when you exit or close your browser which may reduce your levels of privacy and security. You should never select this option if you're using a publicly accessible computer, or if you're sharing a computer with others. Even if you select this option there are some features of our site that still require you to log in for privacy reasons.

Forget your password? Having trouble signing in?

Why should I
sign up for WebMD?

With a WebMD Account you can:

Track your way to weight loss success
Manage your family's vaccinations
Join the conversation

See more benefits Sign Up

Why WebMD?

My WebMD

Show Menu

Facebook Twitter Pinterest

WebMD Home

Drugs & Medications A-Z

carbidopa-levodopa Oral

Back to Drug Overview

Select Parkinson Disease Agent/Select Atypical Antipsychotic

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.

Medical warning:

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:

Antipsychotic medicines may counteract the effects of medicines used to treat Parkinson disease.

What might happen:

Movement problems or muscle spasms due to Parkinson disease may get worse.

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.

References:

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.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.
5.Oertel WH Berardelli A Bloem Br etal. Chapter 15 - Late (complicated) Parkinson's disease in European Handbook of Neurological Management. 2011; Volume 1, 2nd Edition:237 - 267.

See 73 Reviews for this Drug. - OR -

Related to Carbidopa-Levodopa Oral

Conditions & Treatments Related to Carbidopa-Levodopa Oral

Parkinson's Disease Medications

Parkinson Symptoms Medications

Extreme Discomfort in Calves when Sitting or Lying Down Medications

Parkinsonism due to Degenerations in the Brain Medications

Find a Drug:

by name or medical condition or shape/color (Pill Identifier)

Pill Identifier

Learn about User Reviews and read IMPORTANT information about user generated content

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Drugs and Medications Center

Common Drugs

Vitamins & Supplements Center

First Aid Resources

Health Solutions From Our Sponsors

Vaccines for All Ages

FDA Protect Your Health

Benzocaine and Babies: Not a Good Mix
Database Is One-Stop Resource on Kids' Medications
Explore our expanded FDA Center on WebMD.

Ask the pharmacist

Questions about medications? Get expert answers by video or live chat about allergies, pregnancy, sleep, and more.
See the Ask the Pharmacist event schedule.

Related Links

IMPORTANT: About This Section and Other User-Generated Content on WebMD

The opinions expressed in WebMD User-generated content areas like communities, reviews, ratings, or blogs are solely those of the User, who may or may not have medical or scientific training. These opinions do not represent the opinions of WebMD. User-generated content areas are not reviewed by a WebMD physician or any member of the WebMD editorial staff for accuracy, balance, objectivity, or any other reason except for compliance with our Terms and Conditions. Some of these opinions may contain information about treatment or uses of drug products that have not been approved by the U.S. Food and Drug Administration. WebMD does not endorse any specific product, service, or treatment.

Do not consider WebMD User-generated content as medical advice. Never delay or disregard seeking professional medical advice from your doctor or other qualified healthcare provider because of something you have read on WebMD. You should always speak with your doctor before you start, stop, or change any prescribed part of your care plan or treatment. WebMD understands that reading individual, real-life experiences can be a helpful resource but it is never a substitute for professional medical advice, diagnosis, or treatment from a qualified health care provider. If you think you may have a medical emergency, call your doctor or dial 911 immediately.