Morphine is a very strong painkiller. Morphine overdose occurs when a person intentionally or accidentally takes too much of the medicine.

This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or the National Poison Control Center at 1-800-222-1222.

Morphine sulfate

• Astramorph
• Morphine
• M S Contin
• Roxanol

Note: This list may not be all-inclusive.

• Eyes, ears, nose, and throat
  • Pinpoint pupils
• Gastrointestinal system
  • Constipation
  • Nausea
  • Spasms of the stomach or intestinal tract
  • Vomiting
• Heart and blood vessels
  • Low blood pressure
  • Weak pulse
• Nervous system
  • Coma
  • Drowsiness
  • Possible seizures
• Respiratory system
  • Difficulty breathing
  • Slow and labored breathing
  • Shallow breathing
  • No breathing
• Skin
  • Bluish-colored fingernails and lips

Seek immediate medical help. DO NOT make a person throw up unless told to do so by Poison Control or a health care professional. Perform mouth-to-mouth breathing if the person stops breathing.

If possible, determine the following information:

• Patient's age, weight, and condition (for example, is the person awake or alert?)
• Name of the product (ingredients and strengths, if known)
• Time it was swallowed
• Amount swallowed

However, DO NOT delay calling for help if this information is not immediately available.

The National Poison Control Center (1-800-222-1222) can be called from anywhere in the United States. This national hotline number will let you talk to experts in poisoning. They will give you further instructions.

This is a free and confidential service. All local poison control centers in the United States use this national number. You should call if you have any questions about poisoning or poison prevention. It does NOT need to be an emergency. You can call for any reason, 24 hours a day, 7 days a week.

See: Poison control center - emergency number

The health care provider will measure and monitor the patient's vital signs, including temperature, pulse, breathing rate, and blood pressure. Symptoms will be treated as appropriate. The health care team will closely monitor the person's breathing. The patient may receive:

• Activated charcoal
• Fluids by IV
• Laxative
• Naloxone, a medicine (antidote) to reverse the effect of the poison -- multiple doses may be needed

A large overdose can cause breathing to stop and death if the person does not get medical attention or an antidote right away.

Goldfrank LR, ed. Goldfrank's Toxicologic Emergencies. 8th ed. New York, NY: McGraw Hill; 2006.