Dart Drug is an album by improvising musicians Derek Bailey and Jamie Muir, recorded at Crane Grove, London, in August 1981.

Writer Ben Watson described his first impressions of the disc: "The CD arrived wrapped in images of glass-curtain buildings, photographs by Jamie, sporting bizarre wobbles caused by imperfections in the glass.

Muir provides a ceaseless array of new timbres, opening up delicate spaces between distant rumbles and in-yer-face pops and clicks.

In these four improvisations, Bailey himself attempts to become a nearly lyrical player, sensitively looking for timbral elements within his already sonant tones, and Muir moves to underline that aspect of his playing.

"[5] Writing for All About Jazz, Chris May commented: "The bracing yet strangely beautiful album is one of the few recordings made by the percussionist Jamie Muir after he retired from professional music-making in 1973, first to study Buddhism in Scottish and French monasteries, then to become a fulltime painter... On Dart Drug, the soundscapes—to call some of them 'music' would imply a degree of sonic conventionality which is mostly absent—are shaped more by Muir's whirlwind energy and idiosyncratic array of percussion than they are by Bailey's guitar.