The American Academy of Neurology has issued a new guideline recommending the most effective treatments to help people with Parkinson’s disease who experience sleep problems, which is a common but often underrecognized symptom.

The guideline is published in the March 16, 2010, issue of Neurology, the medical journal of the American Academy of Neurology, and also includes information relating to constipation and sexual problems in people with Parkinson’s disease.

“While the main symptom of Parkinson’s disease is movement problems, there are many other symptoms to be aware of, including sleep disorders, constipation, and problems with urination and sexual function,” said lead guideline author Theresa A. Zesiewicz, MD, with the University of South Florida in Tampa and a Fellow of the American Academy of Neurology. “Without treatment, these symptoms can cause as much pain and discomfort as movement problems and greatly affect daily routines and quality of life.”

For problems with excessive daytime sleepiness, the guideline recommends that doctors consider the drug modafinil to help people feel more awake. However, it’s important to note that one study showed people taking modafinil had a false sense of alertness. This may pose a safety risk for activities such as driving. The guideline also found the drug methylphenidate may help with fatigue.