Dulera (mometasone/formoterol) is used to treat asthma. Dulera is a beta agonistcorticosteroid combination which works by easing inflammation in the lungs and relaxing the airways. The most common form of dulera is a 120 dose inhaler of 200mcg/5mcg. It is also available as a 120 dose inhaler of 100mcg/5mcg and a 120 dose inhaler of 50mcg/5mcg. There are currently no generic alternatives for dulera. It is covered by some Medicare and insurance plans, but some pharmacy coupons or cash prices may be lower. With the Patient Assistance Program from PAN Foundation, contact the program to see how they can financially help you out.