Generic Singulair is used for prevention and long-term treatment of asthma. It is also used in certain patients to relieve runny nose caused by allergy and to prevent asthma attacks caused by exercise.
Generic Spiriva is an anticholinergic agent. It works by enlarging the airways to allow easier breathing.
Generic Spiriva is used to prevent bronchospasm (narrowing of the airways in the lungs) in people with bronchitis, emphysema, or COPD (chronic obstructive pulmonary disease).