Disclosed is a polyolefin-based adhesive. The medication label is visible. The shroud covers the light engine to define an air path between an air inlet and an exhaust. To manufacture the crystallized bottleneck, an uncrystallized blank of the bottle is placed in an air-condition environment and a crystallizer is preheated before crystallization. The implants provide an extended release of an active agent at a therapeutically effective amount for a period of time between 10 days and one year or longer.