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Generic Name: morphine (MOR feen)
Brand Names: Avinza, Kadian, MS Contin, MSIR, Oramorph SR, Rescudose, Roxanol, Roxanol 100

What is MSIR (morphine)?

Morphine is in a group of drugs called narcotic pain relievers.

Morphine is used to treat moderate to severe pain. Short-acting morphine is taken as needed for pain. Extended-release morphine is for use when around-the-clock pain relief is needed.

Morphine is not for treating pain just after surgery unless you were already taking morphine before the surgery.

Morphine may also be used for purposes other than those listed in this medication guide.

What is the most important information I should know about MSIR (morphine)?

You may not be able to take this medicine unless you are already being treated with a similar opioid pain medicine and your body is tolerant to it. Talk with your doctor if you are not sure you are opioid-tolerant.

Never take more than your prescribed dose of morphine. Tell your doctor if the medicine seems to stop working as well in relieving your pain.

What should I discuss with my healthcare provider before using MSIR (morphine)?

Before using morphine, tell your doctor if you are allergic to any drugs, or if you have:

• asthma, COPD, sleep apnea, or other breathing disorders;

• liver or kidney disease;

• underactive thyroid;

• curvature of the spine;

• a history of head injury or brain tumor;

• epilepsy or other seizure disorder;

• low blood pressure;

• gallbladder disease;

• Addison's disease or other adrenal gland disorders;

• enlarged prostate, urination problems;

• mental illness; or

• a history of drug or alcohol addiction.

Older adults may be more sensitive to the effects of this medicine.

How should I use MSIR (morphine)?

Use this medication exactly as it was prescribed for you. Never take morphine in larger amounts, or use it for longer than recommended by your doctor. Follow the directions on your prescription label. Too much morphine could be very harmful. Tell your doctor if the medicine seems to stop working as well in relieving your pain.

To make swallowing easier, you may open the extended-release capsule and sprinkle the medicine into a spoonful of applesauce. Swallow this mixture right away without chewing. Do not save the mixture for later use. Discard the empty capsule.

Measure the liquid form of morphine with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist where you can get one.

Keep track of how many pills have been used from each new bottle of this medicine. Morphine is a drug of abuse and you should be aware if any person in the household is using this medicine improperly or without a prescription.

After you have stopped using this medication, flush any unused pills down the toilet. Throw away any unused liquid morphine that is older than 90 days.

What happens if I miss a dose?

Since morphine is sometimes used as needed, you may not be on a dosing schedule. If you are using the medication regularly, take the missed dose as soon as you remember. If it is almost time for the next dose, skip the missed dose and wait until your next regularly scheduled dose. Do not use extra medicine to make up the missed dose.

What happens if I overdose?

Overdose symptoms may include extreme drowsiness, pinpoint pupils, confusion, cold and clammy skin, weak pulse, shallow breathing, fainting, or breathing that stops.

What should I avoid while using MSIR (morphine)?

MSIR (morphine) side effects

• shallow breathing, slow heartbeat;

• seizure (convulsions);

• cold, clammy skin;

• confusion;

• severe weakness or dizziness; or

• feeling light-headed, fainting.

Less serious side effects are more likely to occur, such as:

• constipation;

• warmth, tingling, or redness under your skin;

• nausea, vomiting, stomach pain, diarrhea, loss of appetite;

• dizziness, headache, anxiety;

• memory problems; or

• sleep problems (insomnia).

This list is not complete and other side effects may occur. Tell your doctor about any unusual or bothersome side effect.

What other drugs will affect MSIR (morphine)?

Before taking morphine, tell your doctor if you are using pentazocine (Talwin), nalbuphine (Nubain), butorphanol (Stadol), or buprenorphine (Buprenex, Subutex). If you are using any of these drugs, you may not be able to use morphine, or you may need dosage adjustments or special tests during treatment.

This list is not complete and there may be other drugs that can interact with morphine. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

Where can I get more information?

• Your pharmacist can provide more information about morphine.

• Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
• Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.