Method for stabalizing timolol concentration

摘要

A novel method for stabilizing timolol concentration in a container containing an aqueous composition comprising timolol is disclosed. The container is made of a pharmaceutically acceptable, moisture-permeable material. This method comprises the step of enclosing the container in a secondary package. The secondary package is made of a pharmaceutically acceptable material having a low permeability to moisture. A medicinal product comprising an aqueous composition comprising timolol is also disclosed. The composition is packaged in a container made of a pharmaceutically acceptable, moisture-permeable material. The container is enclosed in a secondary package, which is made of a pharmaceutically acceptable material having a low permeability to moisture.