Hi , My son (age 9) started with a cold and runny nose & it progressed to stomach pain, vomitting, and difficulty breathing. I gave him Salbutamol Sulfate 100mcg (2 puffs) & fluticasone Propionate 125mcg (1 puff). I took him to a docotor, earlier this morning, as he was still vomitting and the doctor prescribed Deriphyllin BM syrup, Cefixime 100mg tablets & Ondasetron tablets. Now his hands and feet are in sever pain and very stiff, he is also complaining of increasing stomach pain. Please advise if any of the Deriphyllin BM syrup, Cefixime 100mg tablets & Ondasetron tablets are causing this side effects and if I should stop these. thanks and awaiting an urgent response.