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Serotonin syndrome

Potentially life-threatening symptoms that can occur when antidepressants are taken with other medications that also raise serotonin levels.

When to seek immediate medical care

See a doctor immediately if:

  • Agitation, restlessness, anxiety, confusion
  • Tense, twitching muscles, or teeth clenching
  • Fever, sweating, or flushing
  • Rapid heart rate or fast breathing
  • Diarrhea

When to make a doctor's appointment

Make an appointment to see a doctor if:

  • Mild symptoms while taking antidepressant
  • Taking an antidepressant with narcotic pain relievers, muscle relaxants, or anti-nausea medications

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