A pharmaceutical formulation comprises, in an amount effective to hydrate lung mucous secretions, a compound of Formula : 1wherein n is from 1 to 6; X is OH or SH; A and B are each independently selected from the group consisting of: 2wherein R is H or Br; or a pharmaceutically acceptable salt thereof, in a pharmaceutically acceptable carrier. Computing devices are coupled to the one or more backplanes. Fastening sites are provided at spaced locations along the length of the fastener. The top deck has a central section and opposite end sections.