Pediatan symptoms and conditions

My boyfriends kids 8 and 6 have been are on Singulair, Advair, Pediatan and Veramyst. Both daughter and son experience restlessness...trouble sleeping, stomach problems, Headaches, daughter especially experiences anxiety and mood changes. So many symptoms I have seen posted here. They have been on these meds for years and take them all every day....I am printing posts and researching info for him to give to his ex to find alternative treatment for their allergies and asthma....any advice or info will be greatly appreciated.
thank you!