Blend of span and capsule
Spansule (plural Spansules)
- (medicine) (Proprietary name for) a capsule designed to release drugs at a steady rate over a period of hours; a sustained-release capsule.
- 1971: Huge white spansules. I went into the men's room to eat mine. — Hunter S. Thompson, Fear and Loathing in Las Vegas (Harper Perennial 2005, p. 66)