Hi, I got really really bad asthma at the moment and am not close to A&E. After a truly awful night I went to doctor this morning. He said that chest was clear, was just a virus, keep taking inhalers and prescribed prednisone (4 days 30mg a day). I have taken the prednisone (first time I am using it, bit scared by all possible side effects described in leaflet) and was wondering given that I do not have a chest infection if it gets bad tonight could I also take pholcodeine (should have asked GP but forgot)? Or does prednisone interact with pholcodeine? Does anybody know??? I have googled it but had no luck.