The present invention relates to the delivery of beta-blockers through an inhalation route. The charging roller charges a surface of an image-recording medium with a voltage which is applied from an external source. An impurity doping area is formed in a source area. An error may be conditionally returned to the host upon the occurrence of an internal processing error in accordance with the error handling criteria. The composition so described is used to prevent the degradation of extracellular matrix, stabilize connective tissue, is used to as an antioxident, and is used for treating damage to skin comprising applying the topical composition to the skin.