Spansule

Etymology
, originally a proprietary name.

Noun

 * 1)  A capsule designed to release drugs at a steady rate over a period of hours; a sustained-release capsule.
 * 2) * 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)