English edit

Etymology edit

Blend of span +‎ capsule, originally a proprietary name.

Noun edit

Spansule (plural Spansules)

  1. (medicine) 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)