Sexual problems often affect people with Parkinson's disease. In men with Parkinson's, erectile dysfunction is common. According to the guideline, the drug sildenafil citrate may improve erectile dysfunction. The guideline also found the drug isosmotic macrogol may improve constipation in people with Parkinson's disease. 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 ... Click Here to Read More Click Here to Read More