Seretra 80 Tablet is used to prevent asthma. It reduces swelling in the airways and makes breathing easier. Use Seretra 80 Tablet in the dose and duration as advised by the doctor. Take this medicine for as long as it is prescribed for you. Do not miss even a single dose, if in any case, you missed a dose, take it as soon as you remember it. The most common side effects of this medicine include headache, rash, dryness in mouth, and abdominal pain. If these bother you or appear serious, let your doctor know. There may be ways of reducing or preventing them. If drowsiness happens, avoid driving or attention-seeking activity. Before taking this medicine, let your doctor know if you have liver disease as medicine can affect your liver. Your doctor should also know about all other medicines you are taking as many of these may make this medicine less effective or change the way it works. Inform your doctor if you are pregnant, or breastfeeding.