The present invention provides a non-transparent film composition that has light-shielding properties and can thereby maintain the stability and quality of products, such as formulations, for a long period of time; and formulations using this film composition, and particularly filled capsules. The second guide wire diverges from the distal-end region of the first guide wire. The distribution of low-absorption segments can be controlled through techniques such as proton implantation or selective-area quantum well intermixing. The first precision type is modified to have a second precision type different in precision than the first precision type to thereby generate at least one modified data value. The composition has utility in providing symptomatic relief of sneezing, itchy, watery eyes, itchy nose or throat and runny nose due to hay fever or other respiratory allergies.