Fiber is the part of fruits, vegetables and grains not digested by your body. A low-fiber diet restricts these foods. As a result, the amount of undigested material passing through your large intestine is limited and stool bulk is lessened.
Read More. They all increased his ticks tremendously. We switched over to vyvanse and that seemed so much better for the ADHD and the tics were still there but not nearly as bad. He also has been diagnosed with ODD and so at the Tourette's clinic they prescribed him a low dose of risperidone.
Common side effects include anorexia, anxiety, decreased appetite, decreased weight, diarrhea, dizziness, dry mouth, irritability, insomnia, nausea, abdominal pain, vomiting, increased heart rate, constipation, and jittery feeling. The recommended dose of Vyvanse is 30 mg once daily in the morning.ess serious side effects may include: 1  loss of appetite, weight loss; 2  sleep problems (insomnia); 3  nausea, vomiting, stomach pain; 4  feeling irritable; 5  mild skin rash; or. 6  dry mouth or an unpleasant taste in your mouth.