Robitussin has various formulations. Robitussin CF is the original cold formula, Robitussin DM has a cough suppressant, and at one time there was a formula with codeine that had to be purchased at the pharmacy itself. In addition, there is also a nighttime relief formula.
There is also a Sugar-Free Robitussin, which went on the market for the first time in 2001. This product is made by Whitehall-Robins Healthcare, located in Madison, New Jersey. Other than the lack of sugar, the ingredients are the same as in regular Robitussin. Whitehall-Robins is headquarted in Richmond, Virginia at the same location as the prior manufacturer, AH Robins.
Robitussin was used as a running gag by Chris Rock in the 1999 DVD Bigger and Blacker in reference to its use in his house as a kid so they didn't have to go to the doctor. It is also mentioned often in the show Everybody Hates Chris.
Robitussin was featured on an episode of Dr. Phil that dealt with drug addiction.
Robitussin (spelled as "Robotussin" to avoid trademark issues) is referenced in the MC Chris song "The Tussin (Robotussin)". The alternate spelling also references the occasional nickname of the medicine as "Robo," or "Robo-Tripping" that's used mainly by recreational users which is the use in the song.