This topic came up at my child's recent doctor appointment. He said that the bioavailability of the two medications differs, so you can't equate one to the other. Typically, guanfacine doses are about half the Intuniv dose, but there's no formula for it. That info. comes from a developmental pediatrician who is an expert in ADHD medications.
I think you're right about taking the 1mg dose 2ce a day. My son takes .5 mg three x day. .5 when he wakes up, .5 at 3pm, and .5 when he goes to bed. BUMP? If no one knows the answer to my question, can you please