Apokyn (Apomorphine) Drug Information: Overdosage and Contraindications

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May 24, 2012

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Parkinson's disease is the second most common neurodegenerative disorder and the most common movement disorder. It is characterized by progressive loss of muscle control, which leads to trembling of the limbs and head while at rest, stiffness, slowness, and impaired balance. As symptoms worsen, it may become difficult to walk, talk, and complete simple tasks.

The progression of Parkinson's disease and the degree of impairment vary from individual to individual. Many people with Parkinson's disease live long productive lives, whereas others become disabled much more quickly. Premature death is usually due to complications such as falling-related injuries or pneumonia.

In the United States, about 1 million people are affected by Parkinson's disease and worldwide about 5 million. Most individuals who develop Parkinson's disease are 60 years of age or older. Parkinson's disease occurs in approximately 1% of i...

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OVERDOSE

Intermittent Injection

A report of an accidental overdose of 25 mg injected subcutaneously in a 62 year old man was published in Journal of Neurology, Neurosurgery, and Psychiatry (1990), Vol. 53, pp. 96-102. After 3 minutes, the patient felt nauseated and lost consciousness for 20 minutes. Afterwards, he was alert with a heart rate 40/minute and a supine blood pressure of 90/50. He recovered completely within an hour.

CONTRAINDICATIONS

Based on reports of profound hypotension and loss of consciousness when apomorphine was administered with ondansetron, the concomitant use of apomorphine with drugs of the 5HT3 antagonist class (including, for example, ondansetron, granisetron, dolasetron, palonosetron, and alosetron) is contraindicated.

APOKYN (apomorphine) is contraindicated in patients who have demonstrated hypersensitivity to the drug or its ingredients (notably sodium metabisulfite).

Last reviewed on RxList: 9/23/2010
This monograph has been modified to include the generic and brand name in many instances.