what does the paed say? has it come up before?
tbh if school are having difficulty managing behaviours etc and have opened up the medication discussion, then it is worth making a paed appt and discussing it.
the doc will give you an assessment questionnaire to do from a 'home' pov, and also give you one for the teacher to complete form a 'school' pov. usually the paed gets the results (ie school goes straight back to paed, not via you) and calculates results and discusses where to go (ie if a medication trial would be appropriate).
fwiw, we did a trial with ds1 but results weren't particulalry conclusive, so we stopped. new paed might want to try again in the spring.
a friends's ds also trialled meds, and there was a huge improvement in concentration and behaviour. unfortunately after the first week the meds started triggering szs, so he was taken off - back to square one.
another friend resisted trialling meds for about three years, despite paed and school advising strongly that she ought to consider. i discussed it with her and eventually she decided to give it a go - her son is now calmer and can pay attention, and is still 'himself', which she was concerned about. (the 'zombie' idea)
so, a trial is a trial is a trial. it doesn't mean he will be on meds forever - it doesn't even mean that meds will work.
you need to discuss it with the paed, but tbh, if school have raised it, it means they have significant concerns about his ability to engage with the curriculum, and so you need to come up with some ideas with the paed as to how to try and manage this (meds or no).
Good luck x