Parkinsons Disease Home > Mirapex ER

Available by prescription, Mirapex ER is a drug licensed to treat Parkinson's disease. It works by stimulating a certain chemical in the brain called dopamine. This long-acting medicine comes in extended-release tablets and is taken only once a day. Potential side effects may include drowsiness, nausea, and constipation.

What Is Mirapex ER?

Mirapex® ER™ (pramipexole ER) is a prescription medication approved for the treatment of Parkinson's disease. It is a long-acting, once-daily version of an older Parkinson's disease medication.
(Click Mirapex ER Uses for more information, including possible off-label uses.)

Who Makes This Medication?

Mirapex ER is made by Boehringer Ingelheim Pharmaceuticals, Inc.

How Does It Work?

Mirapex ER is classified as a dopamine agonist. This means that it works much like dopamine, a naturally occurring brain chemical. It binds to dopamine receptors and stimulates them, much like natural dopamine.
Dopamine deficiency (caused by a loss of dopamine-producing cells) in certain parts of the brain may be responsible for many of the symptoms of Parkinson's disease. By using a medication that acts like dopamine, such as Mirapex ER, some of the symptoms of Parkinson's disease may be relieved.

Effects of Mirapex ER

Studies have shown that Mirapex ER can help treat early forms of Parkinson's disease. This medication was studied in people with early Parkinson's disease who were not yet taking levodopa (one of the most commonly used medications for Parkinson's). In the study, Mirapex ER helped improve the symptoms of this disease, compared to a placebo (a "sugar pill" with no active ingredients).
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Last reviewed by: Kristi Monson, PharmD;
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