My doctor prescribed promethazine Vic w codeine to take as needed. I am concerned that my other medications make interact Iam taking prednisone 7 day, mucinex dm, cirofloxacin along with my normal daily mess of aspirin,ziac,lisinpril, b12, Lipitor and advair inhalor. Will there be a problem taking this cough syrup? Mcmcguire@ Verizon.net. Thanks for your help.