Fomtrop 12 mcg/18 mcg Diskette is used for the treatment of chronic obstructive pulmonary disorder (a lung disorder in which the flow of air to the lungs is blocked). It helps in relaxing the muscles of the air passages and making it easier to breathe. It relieves coughing, wheezing and feeling short of breath. The dose you are given will depend on your condition and how you respond to the medicine. You should keep taking this medicine for as long as your doctor recommends. If you stop treatment too early your symptoms may come back and your condition may worsen. Let your doctor know about all other medications you are taking as some may affect, or be affected by this medicine. The most common side effects are nausea, diarrhea, dryness in mouth, vomiting, dizziness, nasopharyngitis (inflammation of the throat and nasal passages), and insomnia. If you get there, don’t stop taking it but do talk to your doctor. There are other, rarer side effects which can be serious. Talk to your doctor if you're worried about them. Before taking this medicine, you should tell your doctor if you are pregnant, planning pregnancy or breastfeeding