When should I call my doctor if I am taking Demerol?

If you're taking the pain medication Demerol (meperidine), you should call your doctor right away if you have symptoms of an allergic reaction, such as hives, trouble breathing or swelling of your face, mouth, throat or tongue. Dial your doctor if you develop any of these other side effects and they become severe or don't go away:
  • lightheadedness, dizziness, weakness
  • headache
  • mood changes, confusion, agitation or extreme calm
  • nausea, constipation, vomiting, stomach pain or cramps
  • flushing, sweating, dry mouth
  • vision changes
  • trouble urinating
  You'll need emergency medical help for symptoms of an overdose. These include:
  • slowed breathing or heartbeat
  • extreme drowsiness
  • coma
  • loose, floppy muscles
  • cold, clammy skin
  • nausea
  • blurred vision
  • dizziness, fainting or hallucinations
Other reasons to call your doctor while taking Demerol:
  • You become pregnant.
  • You need to start taking a new medication. Your doctor will want to make sure the new drug won't interact with Demerol.
  • You want to stop taking Demerol. Don't quit cold turkey; you could develop unpleasant withdrawal symptoms. Your doctor will likely have you taper off the drug gradually. 
  • You aren't getting pain relief with Demerol or you find you need to take it more than four times a day. Your doctor may need to adjust your dose or prescribe a different pain medicine.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.