Compare carbidopa / levodopa vs. Apokyn

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Sinemet (carbidopa / levodopa)

Prescription only

Apokyn (apomorphine)

Prescription only
Treats Parkinson's disease.

Sinemet (carbidopa / levodopa) is the first choice treatment for Parkinson's disease.

Helps you move around.

Apokyn (apomorphine) is good for treating the "off" episodes or difficulty moving around when you have advanced Parkinson's disease, but it can cause vomiting and sudden sleepiness.

Upsides
  • Sinemet (carbidopa / levodopa) is widely available as a regular pill, a quick dissolving pill or a liquid taken through a feeding tube.
  • Sinemet (carbidopa / levodopa) is available in generic.
  • Preferred drug according to the guidelines to treat the "off" periods or inability to control movements well that's associated with Parkinson's.
  • People respond to the injection of Apokyn (apomorphine) very quickly and this response can last longer than other medicines.
Downsides
  • Can make you very sleepy.
  • Can stain your saliva, sweat and urine a dark color.
  • Will lose its effect over time as your disease progresses.
  • May need to be taken several times during day to control symptoms of Parkinson's disease
  • May cause unusual cravings in some people.
  • Can cause vomiting and sudden sleepiness. Your doctor will have to give you a medicine to stop the vomiting from happening.
  • Apokyn (apomorphine) should only be used if you have an "off" period of moving around. You should keep using your other medicines for your Parkinson's.
  • Dosing can be confusing since the pen only dispenses in milliliters, and there have been reports of people getting overdoses of Apokyn (apomorphine) because they thought it was for milligrams.
  • Stopping Apokyn (apomorphine) suddenly or lowering the dose too quickly can cause your muscles to become very stiff and you might get a very high fever, which can be life threatening. Talk to your doctor if you want to stop taking this medicine.
Used for
Dosage forms
  • Pill
  • Dissolving tablet
  • Injection
Price
Lowest price near you
$18.44
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$1035.15
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Side effects
The Sinemet (carbidopa / levodopa) FDA package insert doesn’t have numbers about how common side effects are.
9possible side effects
  • Yawning
    40%
  • Movement problems
    35%
  • Drowsiness or sleepiness
    35%
  • Nausea or vomiting
    30%
  • Dizziness
    20%
  • Runny nose
    20%
  • Chest pain
    15%
  • Hallucinations
    10%
  • Swelling in arms and legs
    10%
See more detailed side effects
Risks and warnings
  • Falling asleep during the day

    Taking other medicines for Parkinson's

  • High fever and confusion

    Stopping Sinemet (carbidopa / levodopa) suddenly

  • Lack of impulse control

    Taking other medicines for Parkinson's disease

See more detailed risks and warnings
  • Hallucinations

    Taking antipsychotic medicines

  • Falling asleep during the day

    Taking other medicines for Parkinson's disease

  • Increased risk of heart attack or stroke

    History of heart disease or stroke

See more detailed risks and warnings