The Mystery Revealed
Here are the meanings of the clue words and the answer to the mystery:
Chandler from the TV show "Friends", cherries - Chandler's last name was Bing, which is also a variety of cherry. Bing is the name of a search engine.
Pub Med, searching, racing Alaskan sled dogs, third entry, Willard Williamson, Royer McKenzie, Davis Payton - Searching for "pub med" on the search engine Bing directs you to http://www.ncbi.nlm.nih.gov/PubMed/. Searching in PubMed for "racing Alaskan sled dogs" returns several entries. The third search entry refers to a study of the use of famotidine in racing Alaskan sled dogs, authored by Willard, Williamson, Royer, McKenzie, Davis and Payton.
drug store - A reference to the drug famotidine
pud - PUD is an abbreviation for peptic ulcer disease, which is treated by famotidine
helicopter - A reference to Helicobacter pylori, the primary cause of peptic ulcer disease
small drainage canal - A reference to the small intestine, where peptic ulcers are often found
glanced - Sounds like "glands"
slippery substance - Mucus
name - The name of a gland in the small intestine that produces mucus.
And the answer is........Brunner!