Before you treat your COPD with Combivent Respimat, tell your doctor about:, About all the medications you take, Your allergies, Your health history and medical problems, Your pregnancy or breastfeeding status, Combivent Respimat can cause life threatening airway constriction. Seek emergency care immediately if this occurs., Beta2-adrenergic agonists, which is a component of Combivent Respimat, can cause serious cardiovascular effects such as high blood pressure, heart attack, rapid heart rate, and other heart arrhythmias. Caution should be used in patients with disorders of the cardiovascular system., Ipratropium bromide, a component of Combivent Respimat, can cause increased pressure in the eyes and should be used with caution in patients with glaucoma., Ipratropium bromide, a component of Combivent Respimat, can cause urinary retention and should be used with caution in patients who have prostate problems or bladder-neck obstructions., Combivent Respimat can cause allergic reactions that can become severe. Seek emergency care immediately if you have trouble breathing, swelling of the face, lips, or tongue, or skin rash., Because Combivent Respimat contains albuterol, it should be used cautiously in patients who have seizures, high thyroid levels, diabetes, and in patients who are sensitive to sympathomimetic amines., Beta2-adrenergic agonists, which is a component of Combivent Respimat, can cause low potassium levels in the blood. About all the medications you take, Your allergies, Your health history and medical problems, Your pregnancy or breastfeeding status