The Electric Typewriter

by Jim Hogshire

Dextromethorphan Hydrobromide, the “DM” in DM cough syrups such as Robitussin Maximum Strength Cough, is one of the most mystifying drugs in the pharmacopia. Even though it can be found in virtually every over-the-counter cold, flu, and cough remedy, most reference works hardly mention it; when they do, their information is sketchy and sometimes contradictory…