Fentanyl Sublingual Spray

**Semantic type:** Pharmacologic Substance

**Definition:** A sublingual preparation of a short-acting, synthetic anilidopiperidine opioid with analgesic activity. After rapid sublingual transmucosal absorption, the active ingredient fentanyl selectively binds to and activates mu-opioid receptors in the central nervous system (CNS), mimicking the effects of endogenous opiates.

**Synonyms:** - FSS - fentanyl sublingual spray