A solid oral controlled-release dosage form of hydrocodone is disclosed, the dosage form comprising an analgesically effective amount of hydrocodone or a pharmaceutically acceptable salt thereof, and controlled release material. In one possible implementation the coefficient generator is constructed andor controlled so as to provide the coefficients for the resampling in the form of linearly interpolated coefficients. The index is based on a quantization parameter, a size of the block of coefficients, and a position of said each coefficient within the block. A trigger guard cover is slideably or hingably connected to the housing. The invention also relates to the use of sorbitan carboxylic acid ester in washing or care formulations. ; \u2014heating the substrate having the applied boron source and the applied silicon source to a temperature lower than the solidus temperature of the parent material of the substrate; and cooling the substrate having the applied boron source and the applied silicon source, and obtaining the braze alloy layered product.