Muconol-AB Tablet is a medication used to treat and prevent asthma and symptoms of chronic obstructive pulmonary disorder. It relaxes air passage muscles, making it easier to breathe. The dosage depends on the patient's condition and response. It should be continued as recommended by the doctor. Common side effects include vomiting, heartburn, stomach upset, rash, itching, and nasal inflammation. It is important to inform the doctor if you have liver or kidney disease, are pregnant, planning pregnancy, or breastfeeding.