Morphine (PF)

This form:

Pronounced

"MOR-feen SUL-fate"

Common brand names:

MS Contin

Uses

This medication is used to help relieve severe ongoing pain (such as due to cancer). Morphine belongs to a class of drugs known as narcotic (opiate) analgesics. It works in the brain to change how your body feels and responds to pain.

The higher strengths of this drug (100 or 200 milligrams per tablet) should be used only if you have been regularly taking moderate to large amounts of narcotic pain medication. These strengths may cause overdose (even death) if taken by a person who has not been regularly taking narcotic medication.

Do not use the extended-release form of morphine to relieve pain that is mild or that will go away in a few days. This medication is not for occasional ("as needed") use.

How to Use This Medication

See also Warning section.

Read the Medication Guide provided by your pharmacist before you start using morphine and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

Take this medication on a regular schedule as directed by your doctor, not as needed for sudden (breakthrough) pain. Take this drug with or without food, usually 2 or 3 times daily (every 8 or 12 hours). If you have nausea, it may help to take this drug with food. Ask your doctor or pharmacist about other ways to decrease nausea (such as lying down for 1 to 2 hours with as little head movement as possible). If nausea persists, see your doctor.

Swallow the tablets whole. Do not break, crush, chew, or dissolve the tablet. Doing so can release all of the drug at once, increasing the risk of morphine overdose.

The dosage is based on your medical condition and response to treatment. Do not increase your dose, take the medication more frequently, or take it for a longer time than prescribed. Properly stop the medication when so directed.

Before you start taking this medication, ask your doctor or pharmacist if you should stop or change the dose of your other narcotic medication(s). For added pain relief, your doctor may direct you to also take quick-acting narcotic or non-narcotic pain medications (such as acetaminophen, ibuprofen). Ask your doctor or pharmacist if you have any questions about using morphine safely with other drugs.

This medication may cause withdrawal reactions, especially if it has been used regularly for a long time or in high doses. In such cases, withdrawal symptoms (such as restlessness, watering eyes, runny nose, nausea, sweating, muscle aches) may occur if you suddenly stop using this medication. To prevent withdrawal reactions, your doctor may reduce your dose gradually. Ask your doctor or pharmacist for more details, and report any withdrawal reactions right away.

When this medication is used for a long time, it may not work as well. Talk with your doctor if this medication stops working well.

Along with its benefits, this medication may rarely cause abnormal drug-seeking behavior (addiction). This risk may be increased if you have abused alcohol or drugs in the past. Take this medication exactly as prescribed to lessen the risk of addiction.

Tell your doctor if your pain persists or worsens.

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Information expires December 2017.