Coricidin
Coricidin, Coricidin 'D' (decongestant), or Coricidin HBP (for high blood pressure), is the name of a drug marketed by Schering-Plough that contains dextromethorphan (a cough suppressant) and chlorpheniramine maleate (an antihistamine). It is now owned by Bayer. Varieties of Coricidin may also contain acetaminophen (an analgesic/antipyretic) and guaifenesin (an expectorant). Medicinal use. Coricidin is used to alleviate coughs and includes chlorpheniramine for people with high blood pressure. Other versions of Coricidin are used to reduce fever or as an expectorant. Side effects can include diarrhea and hallucination. Recreational use. Coricidin is sometimes used in high doses as  a recreational drug because it contains the dissociative dextromethorphan. In this context, Coricidin is referred to as C's, red devils (red D's), Skittles, trips, or china red. Use in popular music. In the late 1960s, blues-rock guitarist Duane Allman began using an empty glass Coricidin bottle as a guitar slide, finding it to be just the right size and shape for this purpose. Allman started to play slide guitar when he received two birthday gifts from his brother, Gregg: a copy of Taj Mahal's debut album, with its version of "Statesboro Blues", and a bottle of  Coricidin pills (as Duane had a cold that day). Other prominent slide guitarists, such as Derek Trucks (a later member of the Allman Brothers Band), Ray Wylie Hubbard, Rory Gallagher, J. D. Simo, and Gary Rossington also adopted the Coricidin bottle as a slide.