Assertion: amphetamine's use | /r/Causes | confusion
Facets:
value: in the most serious cases
type: TEMPORAL
Source sentences:
text: Still higher doses or chronic use can cause agitation, tremor, confusion, and, in the most serious cases, a state resembling paranoid schizophrenia.
text: Using the drug can cause confusion, depression, anxiety, sleeplessness, craving for the drug, and paranoia.