What is "robitussin"

Robitussin is a brand name and registered trademark for both over-the-counter (OTC) and prescription cough and cold medicines manufactured by Pfizer. Robitussin products are available in many countries worldwide, though formulations and regulatory standards differ between countries. Robitussin is manufactured on Darbytown Road in Richmond, Virginia, at a site once owned by the drug's developer, AH Robins; its generic versions are manufactured by Qualitest.