My husband was diagnosed with Parkinson s Disease in January. He is taking Trihexyphenldyl 2 mg - 2 tabs twice daily. It has helped the shaking in his right hand. Still has it but not as much. He still has problems with being exceptionally tired, losing train of thought while trying to speak, problem with swallowing pills, and a lot more. HELP, he has always been very active and still travels 20 miles to work and 20 miles back home 5 days a week. What can I do to help him. He has been having a great deal of problem with him breathing.