Assertion: valerian's use | /r/Causes | headache
Facets:
value: in some people
type: OTHER
Source sentences:
text: Continual use can cause depression and headaches in some people.
text: Excessive use may cause headaches, anxiety, insomnia and heart trouble, so valerian medicine must be used with care (Voogelbreinder 2009, 343).
text: Continual use can cause depression and headaches in some people.