Parkinsons Disease Home > Comtan Uses

Comtan is used for treating Parkinson's disease. It has no activity against Parkinson's when used alone, but when taken in combination with carbidopa-levodopa products, the medication can increase blood levels of levodopa to help it work better and last longer. There are currently no universally accepted off-label Comtan uses, and the drug is not approved for use in children.

Comtan Uses: An Overview

Comtan® (entacapone) is a prescription Parkinson's disease medication. It is approved to be added to carbidopa-levodopa products (Sinemet®, Sinemet® CR, or Parcopa®) in people experiencing carbidopa-levodopa "wearing-off" symptoms (when the medication stops working before the next dose).
 
Parkinson's disease is a progressive neurological disorder that results from the loss of neurons in a region of the brain that controls movement. This creates a shortage of the brain-signaling chemical (neurotransmitter) known as dopamine, causing the movement problems characteristic of Parkinson's disease. The exact cause of Parkinson's disease is not currently known.
 
Although early symptoms of Parkinson's disease may be subtle, people will eventually develop a characteristic tremor (trembling or shaking) of a limb, especially when the body is at rest. As the disease progresses, symptoms may worsen and new ones may appear.
 
Depending on the severity of a person's symptoms, Parkinson's disease treatment can include:
 
Although carbidopa-levodopa is an effective Parkinson's medication, its usefulness is often limited to about a few years, when it may begin to lose its effectiveness and cause intolerable side effects. It is not clear at this time why this might occur; some people think it is simply a manifestation of the worsening of the disease that normally happens over time. Adding Comtan to carbidopa-levodopa has been shown to decrease the "off" times (when the medication does not work well) and increase the "on" times (when the medication works well).
 
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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