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Phenergan Side Effects

Phenergan Side Effects to Report

Some side effects with Phenergan are potentially serious -- even life-threatening -- and should be reported to your healthcare provider. These include, but are not limited to:
 
  • Slow or irregular breathing
  • High blood pressure (hypertension) or low blood pressure (hypotension)
  • A rapid heart rate (tachycardia) or slow heart rate (bradycardia)
  • Signs or symptoms of neuroleptic malignant syndrome, which can include:
 
    • A high fever
    • Stiff muscles
    • Confusion
    • Irregular pulse or blood pressure
    • An increased heart rate (tachycardia)
    • Sweating
    • Irregular heart rhythms (arrhythmias)
 
  • Seizures
  • Hallucinations
  • Hyperactivity
  • Involuntary muscle movements
  • Frequent infections or easy bruising or bleeding, which may be signs of blood cell problems
  • Yellow skin (jaundice)
  • A protruding tongue
  • Strange eye movements or positioning
  • Signs of an allergic reaction, such as:
 
    • An unexplained rash
    • Hives
    • Itching
    • Unexplained swelling (especially of the lips, mouth, or throat)
    • Wheezing or other breathing problems.
 
If you are receiving Phenergan through an IV, let your healthcare provider know immediately if you experience severe pain, as this may be a sign that the medication was administered incorrectly or is leaking from the vein into the surrounding tissue. This can cause permanent tissue damage, including gangrene.
 
Some cases have resulted in amputation of the affected limb. Seek immediate attention if this occurs, and make sure your concerns are taken seriously.
 
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