Indaglyn (Powder For Inhalation) Respicaps 30's is used to treat Chronic Obstructive Pulmonary Disease (COPD). It works by decreasing the airway secretions and relaxing & widening the airways, making it easier to breathe. In some cases, this medicine may cause side effects such as upper respiratory tract infection, inflammation of the sinuses, runny/stuffy nose, headache, dizziness, and stomach upset. Before taking this medicine, inform the doctor if you are pregnant or breastfeeding, taking any other medication, or have any pre-existing medical conditions.