Glycotuss DM is a brand name for a cough syrup that offers a combination of dextromethorphan and guaifensesin. It is also found under the brand name Robitussin DM. Dextromethorphan is a cough suppressant that affects the signals in the brain that trigger the cough reflex. Guaifenesin acts as an expectorant. Glycotuss DM can be purchased over-the-counter, but can often be found on the street to take as a recreational drug. Its use is often referred to as Robo-tripping or skittling, the former related to the Robitussin DM form. With the ease of acquisition and low cost, Glycotuss DM has a high potential for abuse. The greatest concern for abuse is among teenagers and young adults. Abusers of the cough syrup tend to display hyper-excitability, lethargy, ataxia, slurred speech, sweating, hypertension and/or nystagmus.
Glycotuss DM taken in excessive amounts can produce feelings of drowsiness and relaxation, described by some users as being similar to marijuana. In extreme amounts it becomes the equivalent of a hallucinogenic drug. Side effects of this drug can include: allergic reactions; difficulty breathing; facial swelling. More serious side effects include: severe dizziness; anxiety; restless feeling, or nervousness; confusion; hallucinations; slow, shallow breathing. If a person develops a dependence on Glycotuss DM, problems arise when the medication is abruptly discontinued. Withdrawal symptoms often occur, including muscle aches, bone aches, insomnia, diarrhoea, vomiting and cold flashes