(-)-Pseudoephedrine as a sympathomimetic drug

摘要

The present invention provides pharmaceutical compositions which include (-)-pseudoephedrine and a pharmaceutically acceptable carrier, wherein the (-)-pseudoephedrine is substantially-free of (+)-pseudoephedrine. In another embodiment, the present invention provides methods of relieving nasal and bronchial congestion and of inducing pupil dilation which include administering a pharmaceutically effective amount of (-)-pseudoephedrine to a mammal. The (-)-pseudoephedrine used in the present methods is substantially free of (+)-pseudoephedrine and also substantially free of side effects caused by administration of (+)-pseudoephedrine.