Mark - this on webmd is one of the many articles I found on the web.....are they not true?
MAO-B inhibitors for Parkinson's disease
Examples
rasagiline mesylate Azilect selegiline hydrochloride Deprenyl Eldepryl
How It Works
Monoamine oxidase inhibitors (MAOIs) prolong the effects of dopamine in the brain by preventing its breakdown. They also may prevent the removal of dopamine between nerve endings and enhance release of dopamine from nerve cells. Rasagiline and selegiline are selective monoamine oxidase (MAO-B) inhibitors. Why It Is Used
MAO-B inhibitors may be used in the early stages of Parkinson's disease to treat very mild symptoms (such as resting tremor) and delay the need for levodopa. However, they have minimal effects when used alone, and better medications are available for this purpose.
In people with advanced Parkinson's disease who are taking levodopa, rasagiline or selegiline may be added to levodopa treatment to reduce motor fluctuations, increase the time of effect of the levodopa, and decrease the amount of levodopa needed to control symptoms.1
How Well It Works
In the early stages of Parkinson's disease MAO-B inhibitors may improve symptoms and can delay the need for levodopa. However, the benefits are considered modest.2
When used with levodopa in people with advanced disease, rasagiline or selegiline may reduce motor fluctuations and increase the length of "on" periods (times when medication is able to control symptoms).1
Side Effects
When rasagiline or selegiline is used alone, it causes few side effects in the doses that are used to treat Parkinson's disease. These medicines can cause nausea, insomnia, and occasionally confusion and hallucinations (seeing or hearing things that aren't really there). Insomnia can be avoided by taking the last dose by midday so that its stimulant effect will have declined before bedtime. Most people tolerate MAO-B inhibitors fairly well.
Increased confusion and other cognitive side effects are more likely to occur when MAO-B inhibitors are used in combination with levodopa, especially in older people. Rasagiline and selegiline also can cause frequent falls and should not be given to older people who have orthostatic hypotension (low blood pressure when a person stands up).
Certain risk-taking behavior, like uncontrollable gambling and shopping, has been linked to medicines used to treat Parkinson's disease. It seems that these behaviors may occur more often in patients taking MAO-B inhibitors in addition to levodopa.
