Assertion: methadone | /r/HasAspect | heartbeat
Facets:
Source sentences:
text: Methadone too has similar serious side effects like allergic reaction: hives, difficulty breathing, swelling of face, lips, tongue, or throat; shallow breathing; hallucinations or confusion; chest pain, dizziness, fainting, fast or pounding heartbeat; or trouble breathing, feeling light-headed, or fainting.