Hi rosalux, DS was diagnosed with ADHD (and ODD) when he was 11, he has now just turned 15. I feel the ODD is totally linked to the ADHD - when that is being treated successfully, the ODD really dissipates.
He was initially put on Concerta, 36mg, which actually worked well for about 2 years. It became less effective as he got older and moved to secondary school. We moved him up to 54mg, but the behavioural improvement was minimal. His weight was a big concern, and his behaviour in school was disimproving, so last summer we did a lot of research around drug combining/non stimulants etc.
Intuniv caught my eye initially as it is linked to weight gain, and we wanted to try a different stimulant as Concerta wasn't working. Our consultant hadn't even heard of Intuniv, so we had to arrive to appointments armed with research on clinical trials etc. Anyway, he started Intuniv last July and we had the best summer we have had in years. He takes Elvanse for school, which does make him more irritable and kills his appetite, but at least we know we will have Intuniv for the down times.
DS is still lively and 'bouncy' on Intuniv, and still prone to, as he says himself his random outbursts, but the anger and oppositional behaviour isn't there any more (generally speaking! - he is after all a typical teenager also).
Waitingforsleep, I suppose your DD has trialed the two most common stimulants, so maybe that is why your paed has gone for non stimulant?