Effexor Side Effects

Effexor Medicine

Effexor Side Effects to Report

Some side effects of Effexor, while occurring infrequently, are potentially serious and should be reported immediately to your healthcare provider. These include but are not limited to:

Signs of serotonin syndrome (a rare but dangerous problems associated with certain medications) such as:
- Confusion or other mental changes
- A rapid heart rate
- Nausea, vomiting, or diarrhea
- Hallucinations
- Blood pressure changes
- An irregular heart rhythm
- Overactive reflexes
- Fever, sweating, or shivering
- Shakiness
- Agitation
- Seizures
- Coma

Suicidal thoughts or behavior (see Effexor and Suicide)
Anxiety, agitation, or panic attacks
Hostility or aggressiveness
Engaging in unusual or dangerous activities
Restlessness or inability to sit still
Extreme elation, or a feeling of happiness that may switch back and forth with a depressed or sad mood
Other unusual changes in behavior
Difficulty breathing, coughing, or chest pain
Heart palpitations
Difficulty sleeping
Signs of an allergic reaction, including:

Unexplained rash
Hives
Itching
Unexplained swelling
Wheezing
Difficulty breathing or swallowing.

(Effexor Side Effects Continued: Page 3)
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