Sinemet CR Warnings and Precautions

Specific Sinemet CR Warnings and Precautions

Some of the warnings and precautions to be aware of prior to taking Sinemet CR include the following:
  • Sinemet CR can cause involuntary muscle movements called dyskinesia. Although not typically dangerous, dyskinesia is usually quite disturbing and intolerable. If you develop a severe dyskinesia while taking Sinemet CR, your healthcare provider may need to decrease your Sinemet CR dosage (or you may need to stop taking Sinemet CR altogether).
  • If you have heart problems, lung problems, ulcers, or kidney or liver disease, check with your healthcare provider before taking Sinemet CR. In some cases, Sinemet CR may not be the best choice for you.


  • Intense, unusual urges have been reported in people taking Parkinson's disease medications (including Sinemet). Examples include an intense desire to gamble or to engage in risky sexual behavior. Let your healthcare provider know right away if you experience any of these urges.
  • People with Parkinson's disease have an increased risk for melanoma (a type of skin cancer). At this time, it is not clear if this is caused by Parkinson's disease medications (such as Sinemet) or other factors. It is a good idea to have regular skin checks to monitor for this problem.


  • Sinemet CR can cause or worsen many mental illnesses, due to its effects on dopamine (a brain chemical). Let your healthcare provider know if you have a history of such problems.
  • Stopping Sinemet CR too quickly can cause a dangerous condition known as neuroleptic malignant syndrome (NMS). Do not stop taking Sinemet CR without your healthcare provider's approval and supervision. Let your healthcare provider know if you develop any signs of NMS, such as:


    • Irregular pulse or blood pressure
    • Fast heart rate (tachycardia)
    • High fever
    • Stiff muscles
    • Confusion
    • Sweating
    • Irregular heart rhythms (arrhythmias).


  • People with glaucoma may not be able to safely take Sinemet CR. This medication is not recommended at all for people with narrow-angle glaucoma. People with adequately treated wide-angle glaucoma may take Sinemet CR, although careful monitoring of the condition may be necessary.
  • The medication may cause you to fall asleep during the day, sometimes without warning. This can be especially dangerous if you are driving a car or operating heavy machinery. In addition, this can happen long after you start taking Sinemet CR. Ask your healthcare provider if you should stop driving a car or operating heavy machinery while taking Sinemet CR.
  • Sinemet CR can cause dark (red, brown, or black) saliva, sweat, or urine. Although this is not dangerous, it can be quite bothersome.
  • Sinemet CR can potentially interact with several medications (see Sinemet CR Drug Interactions).
  • Sinemet CR is considered a pregnancy Category C medication. This means that it may not be safe for use during pregnancy, although the full risks are not known (see Sinemet CR and Pregnancy).
  • Sinemet CR passes through breast milk. Therefore, if you are breastfeeding or plan to start breastfeeding, discuss this with your healthcare provider prior to taking the drug (see Sinemet CR and Breastfeeding).
4 Reasons BPH Affects Your Libido

Sinemet CR Drug Information

Terms of Use
Advertise with Us
Contact Us
About eMedTV
Privacy Policy
Copyright © 2006-2020 Clinaero, Inc.
eMedTV serves only as an informational resource. This site does not dispense medical advice or advice of any kind. Site users seeking medical advice about their specific situation should consult with their own physician. Click Terms of Use for more information.