Assertion: promethazine's effect | /r/HasProperty | unpredictable
Facets:
value: often
type: DEGREE
Source sentences:
text: In fact, the actual effects of spice can be unpredictable and, in some cases, severe or cause death.
text: The effects of taking ibuprofen with other drugs, including alcohol, prescription medications and other over-the-counter medicines, are often unpredictable.