Assertion: melatonin | /r/Causes | sleepiness
Facets:
value: primarily
type: DEGREE
Source sentences:
text: It primarily causes sleepiness, but this is its intended purpose and not a side effect.
text: Melatonin can cause sleepiness and so should not be taken before driving or operating machinery.
text: Although melatonin can cause sleepiness, it usually doesn’t impair thinking or coordination like benzodiazepines and other anti-anxiety medications.