there are a lot more side effects than what you mention. IT will also cause blood in the urine,and we have a friend who constantly has to be monitored for kidney and bladder infections, which only started after starting on Permax. MY husband also suffered hallucinations and other things as well after takeing a very minimal dose of Permax. I didn't wait to ask the neuro, I stopped it and after stopping it, he returned to his old self. Needless to say that ended his taking Permax. thanks for listening