[HangnJudge]

Same problems with sugarless Cough Drops

I think it's the glycerin

http://www.drugs.com/sfx/glycerol-side-effects.html

[Bloody Sam Roberts]

I think it's the glycerin

Nope. It's the Lycasin. Lycasin's known side effects in adults include bloating, intestinal gurgling or rumbling and flatulence. Some cases of severe intestinal distress have resulted from consuming excessive quantities of foods containing Lycasin.

[Harmless Teddy Bear]

Whoever put them in cough drops is a sadistic monster. When you are coughing and sneezing is NOT the time for your GI track to be in an uproar.