Do not stop using any of your other asthma medications, even if you feel better after starting formoterol. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. Other drugs besides formoterol that may affect the heart rhythm QTc prolongation in the EKG include amiodarone, dofetilide, pimozide, procainamide, quinidine, and sotalol, among others. The exact cause of death is unknown, but cardiac arrest following an unexpected development of severe acute asthmatic crisis and subsequent hypoxia is suspected. The committee members felt that adding warning to Foradil would alert physicians and patients that the drug might be no safer than Salmeterol products. The median lethal oral doses in Chinese hamsters, rats, and mice provide even higher multiples of the maximum recommended daily inhalation dose in humans. Foradil has been known to where can i buy foradil online without a prescription cause allergic reactions and acute asthma attacks.