DS is on 10mg Equasym XL, which is a slow release form of methyphenidate - the pharmaceutical drug also used in Ritalin.
From what I gather (caveat - I'm so not an expert), the drug itself seems to have different effects, and side effects on different people when it is produced by different companies, despite being the same chemical. So if DS had a negetavie response to this one, we might have been advised to try a different brand or way of taking it - like a tablet in the morning and one at lunchtime.
DS takes it before breakfast and that lasts him throughout the school day. It's out of his system by the end of the day and doesn't rely on a constant top up, as I believe some of the other pharmaceutical drugs do - I don't know much about them though.
He's been happy to take it, he recognised that he really struggled to focus in class, and the main reason he takes it is to help with that. He doesn't need it at the weekends so much and we give him the choice whether he takes it or not - so far he's chosen not to apart from when he was doing swimming lessons on a Saturday.
It was because he primarily needs it to help him at school that the Dr prescribed that particular one.
He's on the lowest dose and we were advised that the effects may wear off as his body gets used to metabolising it, in which case we may choose to try a higher dose - I think 20mg is typical. He seems to be getting some benefit from it though so we, and the Dr, are happy to stick for now.
We started trying him out over the Easter hols so we could see for ourselves any positive or negative effects and be able to pass this on to the teachers, or to stop if it didn't suit him. As he doesn't take it at the weekends, we tend to rely on the teacher to tell us if he's out of sorts or anything, but we're really lucky that she's been a huge support and will grab me at hometime if she ever needs to pass anything on.
If your DS is possibly going to try out something over the hols or at the start of the September term, it might be worth having a quick chat with his teacher for next year, if only to check if there would be any practical considerations, e.g. him taking a tablet at lunchtime if that's the sort of thing he gets prescribed. I think most schools can accomodate that, I know a couple of children at ours where they pop to the school office at lunchtime for theirs. You might find the teacher quite supportive too, there's a pretty good chance they'll already have experience of this sort of thing and will probably be keen to work with you on it.