Adjective
of or relating to a preparation that gradually releases an active substance (especially a drug) over a period of time
Source: WordNetAbusers early on learned that by crushing time-release capsules, the full dosage intended for a 12-hour period could be felt all at once. Source: Internet
Quick-release may be more helpful in falling asleep, while time-release may be more helpful in staying asleep, explained the organisation. Source: Internet