the Robitussin references in the Moby Grape song refer to its use as a recreational drug when large amounts are ingested, nowadays known as "robo-tripping". I've long wondered whether the Grape were getting high on the dextromethorphan- or codeine-laced version of Robitussin; the latter was much more readily available in 1967 than it is now, with many states now requiring a prescription for it. Outside the US, codeine cough syrups or pain relievers are still usually available without an rx.
― Lee626, Tuesday, 22 April 2014 08:43 (ten years ago) link