Intuniv is the long-acting form of Tenex. DS has been on Tenex since last fall, with good results. It has helped a lot with his attention, and somewhat with anxiety and impulse control. DS has both ASD and ADHD, so the medicine does not completely resolve these issues, but it does make a noticeable difference.
We we went with Tenex instead of Intuniv for a couple of reasons. The main one is that at the time it was first prescribed, DS could not swallow pills. Tenex tablets can be cut and crushed, but Intuniv has to be swallowed whole. Tenex also has a generic version and is much cheaper. I don't know if those things are factors for you, but they are just something to be aware of.
Gena
DS, age 11 and always amazing
“Autistics are the ultimate square pegs, and the problem with pounding a square peg into a round hole is not that the hammering is hard work. It's that you're destroying the peg." - Paul Collins, Not Even Wrong