Abstract: A tamper-resistant package for articles such as pharmaceuticals and medicine which are themselves first enclosed within a first closed and sealed container. The first container is then enclosed within a second container, there being a void between the two containers. The second container includes a lid which is secured over its opening. Positioned between the lid and the opening of the second container is a permanently adhered thin sheet of elastic material or membrane which is impermeable to gas or liquid. This membrane is permanently adhered to the opening of the second container after the sealed first container and a portion of solid chemical material possessing the physical property of sublimation is placed into the void.