Assertion: diphenhydramine's effect | /r/HasProperty | headache
Facets:
Source sentences:
text: Infrequent adverse effects include urinary retention, palpitations, hypotension, headache, hallucination, and psychosis.
text: The most common adverse effects noted for second-generation agents include drowsiness, fatigue, headache, nausea and dry mouth.
text: Side effects can include headaches and daytime sleepiness.
text: Side effects can include headaches and daytime sleepiness.