Hi and thank you so much for this query. I will suggest that you wean him off these medications progressively and one at a time. However, talk to your doctor because discontinuing medications without talking to your doctor can have serious consequences. let your doctor evaluate your son fully and tell whether there is still need for this medication or not and establish a plan that would work best. Also, he needs to be followed up during this process to make sure he doesn t run into any withdrawal symptoms or her disease gets worse. I hope you find this useful. I wish you well. Feel free to request for more information and ask ore questions should need be. Thanks.