Assertion: citrate's fentanyl | /r/Causes | headache
Facets:
value: less frequently
type: DEGREE
Source sentences:
text: Less frequently, in 3-10% of people, fentanyl can cause abdominal pain, headache, fatigue, anorexia and weight loss, dizziness, nervousness, hallucinations, anxiety, depression, flu-like symptoms, dyspepsia (indigestion), shortness of breath, hypoventilation, apnoea, and urinary retention.