The only advice I can offer you is to make sure that the DX is correct.
Who did the Diagnosis and have you gotten a second opinion? Our sons school tried to say our son has ADHD-hyperactive type, from there we went to a neuro psychologist because I did not agree with the school. Pyschologist sent us to a speech/language pathologist. We learned he had 5 language disorders and Verbal Dyspraxia(Apraxia), Then we seeked EEG, 1 abnormal, 1 normal to date. NO signs of any seizure disorders. Behavioral/Developmental pediatrician DX him with Language Disorders, DCD(Dyspraxia), Sensory Processing Disorder, ADhD-in conclusive. Neuro Chiropractor found him to be Dyspraxic with left and right brain hemisphere dysfunctions, most recent--I think the one that wraps everything up-4 Vision Disorder--He has very little Vision Acuity problems-he has Oculo-Motor Disorder(Dyspraxia), Exophoria(eye teaming difficulties), Convergence Insufficiency, Reduced Depth Perception, and Accommodative Insufficiency. All of these DX's can have symptoms that mimic ADHD. We tried Homopathics, dietary changes, scripts, etc--none of them have had any positive affects towards his ADHD symptoms. The Behavioral Optometrist and Behav/Develop pediatrician both agree that it's because he does not have ADHD--So Please make sure the DX is correct. I don't know what you have done for testings but as you can see we have left no stone unturned and look at what we have discovered, Ut would not have happened if I hadn't of stuck to my guns knowing that he did not have ADHD. Our son has behavioral problems as well, it's all part of the conditions he does have.

Some here suggest trying giving the child a cup of coffee, if you haven't tried that maybe you should. If it helps him, them it would confirm the DX of adhd--If not then maybe you should seek another opinion.

same deal with my son who has adhd and bi polar.. he is now 17 though.. nothing ever worked.. though he did like paper awards.. they made him feel good.
my aunt ( shes a social worker) always told me. "pick your battles"
you cant win them all, so decide which ones are most important and focus on them

Thank you for your advice. My sons paediatric consultant only got us to fill out two questionaires and then decided from that, that he has ADHD and dispraxia, she then got him to have a blood test which came back saying he has anaemia. He is now on Equasim meds but I don't feel they are right for him and I have mentioned it more than twice to his consultant but she hasn't changed them or upped his dosage because he isn't putting on weight quick enough at the moment. He also has problems with refusing to eat sometimes and would just live off cheese butties or chicken nuggets if he could. I try and get him to eat normal foods but he has been known to just sit there for over an hour or more with it in front of him but alls his consultant does is keep saying he must eat a variety of foods which in a way makes me feel like I am failing him.

adhd/add yea right a ten year old is a ten year old.. look I going to tell you what my mother did,and I did it with my kids and it works.. first take a deep breath..you can do this.. first buy a pad lock then clear out a cloest this is were you will lock his tv. games toy ect any thing he likes or play with lock it up..now in order for this to work you have to do this while he is in school and yes dont forget to take his door off the hinges .. now when he gets home from school have only bed room frun in his room.now here comes the good part lock the closet. half of your problem is over .. when he comes home from school sit him down before he see what you have done.. tell him that for every week that he does not act out he can choose a item that he would like back only one item per week.. reward him with verbal praise and a sticker chart . now the hardest part about trainning your child this way is you have to be a parent so fine time to sit and do homework with him and read a book together at night let him read to you , just hug him and kiss him and praise him often throughout the day..believe it or not childern want to please there parent.. dont give in and dont buy any extra toys while you are out for him... look life is about structure and adhd does not mean let your child do what they want..and dont ever give a child coffee... look try my way a child dont have to have anything wrong with them to be trained to act right.. this was you dont even have to fuss ..just simply say when he starts to act out in a calm voice "you only have....days to go inorder to get your "toy" or what ever he want back first..this really works it worked for my kids and my god kids and they really had mental issues no real mental issues i wish they did have adhd or add please. but i tell you what they all dont act out anymore and the last one my god son will be leaving for colloge this summer. and the told me that he would never grow or learn what a different a real parent in there lives has made.. he is taller than me and smart as a wip.. rember this a child that can not sit still,no one is going to even try to teach them all that they can learn..and they can learn but it starts at home, at home.. but try this this also works on the grown teenagers too .. this works on all children but at least let them be at least 6y/o so they will understand why you are taking there things away..hey after you try this let me know how he has changed and he will change.. but you set the days and the list of what he has to do..even if you have to run his bath for him.. have him write you short storys and poems..you will find things for him to do as time goes on..oh i should say day one will be very hard,he may even cry and beg but dont give in..you can do this..and pass this method on to any other parent going thru the same thing you are... each one teach one...you are not alone in this.. but now you know how to fix it .... rember this is for him, not you, this is to beter his life, because god forbid something should happen to you, belive me people lie ,and say they will take him in, but how do you think I ended up with my two god kids and they 3 brothers that no one would take in, not even there father or grandmother who they were left too..they called foster care and had set a court date I showed up at court and took my two and just could not leave the other 3..
pray first....then progress..do it for him