Various embodiments of the present invention generally relate to a polymer blend composition used for coating a medical device that exhibits improved thermal stability. In some circumstances, the glucagon administration system can receive information indicative of the user’s blood glucose level and suggest a glucagon dosage that is at least partially dependent upon a previously stored glucagon sensitivity for the user. At least a portion of the fibers have the connectors extending between and attach the fibers to one another. The circuit arrangement is highly suitable for economically apportioning analog switching elements and functions which are implemented by a microcontroller.