A finishing wire with a ball nose tip is used to secure an implantable device such as a cardiac pacing lead during implantation procedures. A barrier rib layer is located between the first substrate and the second substrate. The processing module also includes a robot that is configured to receive the substrate in the input chamber and transfer and position the substrate in the first processing chamber and second processing chamber. The container has an opening extending therein and an upper surface proximate the opening. When ingested, the composition forms an acidic aqueous gel matrix having melatonin dissolved therein for releasing melatonin into the intestines for a sustained time period. % vanadium and less than 60 ppm beryllium.