Morphine sulfate is a well-known opioid pain reliever. Doctors use it to treat both short-term and chronic pain. Because of its potential hazards, they limit its use to cases where the pain is not adequately controlled by other pain medications. Healthcare professionals have several ways to administer morphine, including immediate-release versions, extended-release versions, and injections. Opioids like morphine are potentially hazardous medications, so patients should be aware of possible risks, including dependency, abuse, and overdose.
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Duramorph (injection), Infumorph (injection), Mitigo (injection), MS Contin (ER tablet)
Morphine sulfate
Treats moderate to severe pain.
Analgesic, opioid
Tablet, extended-release tablet, extended-release capsule, oral solution (liquid), suppository, injectable
By mouth, rectally, injected intravenously or spinally
Morphine relieves moderate to severe pain that cannot be adequately controlled by other analgesics.
Tablet
15 mg
30 mg
Extended-release tablet
15 mg
30 mg
60 mg
100 mg
200 mg
Extended-release capsule
20 mg
30 mg
40 mg
50 mg
60 mg
80 mg
100 mg
Oral solution (liquid)
10 mg/5 mL
20 mg/5 mL
100 mg/5 mL
Suppository
5 mg
10 mg
20 mg
30 mg
Injection
0.5 mg/mL
1 mg/mL
4 mg/mL
8 mg/mL
10 mg/mL
25 mg/mL
For moderate to severe pain:
Tablets: 15–30 mg every four hours to start; after that, the lowest effective dose taken every four hours
Extended-release tablets: 15 mg every eight to 12 hours to start; after that, the lowest effective dose taken every eight to 12 hours
Extended-release capsules: 30 mg every 12–24 hours to start: after that, the lowest effective dose taken every 12–24 hours
Oral solution: 10–20 mg every four hours to start; after that, the lowest effective dose taken every four hours
Suppository: 10–20 mg every four hours to start; after that, the lowest effective dose taken every four hours
Injections: injections are administered intravenously or into the spinal space; doses vary
Morphine Sulfate
100ml of 10mg/5ml bottle
Morphine Sulfate
100ml of 20mg/5ml bottle
Morphine Sulfate
15ml of 10mg/5ml bottle
Morphine Sulfate
500ml of 10mg/5ml bottle
Morphine Sulfate
500ml of 20mg/5ml bottle
Morphine Sulfate
12 suppository box
Morphine Sulfate
5ml of 10mg/5ml cup
Morphine Sulfate
1ml of 10mg/ml syringe
Morphine Sulfate
1ml of 2mg/ml syringe
Morphine Sulfate
1ml of 4mg/ml syringe
Morphine Sulfate
1ml of 5mg/ml syringe
Morphine Sulfate
1ml of 8mg/ml syringe
Morphine Sulfate
30ml of 1mg/ml syringe
Morphine Sulfate
15mg tablet
Morphine Sulfate
30mg tablet
Morphine Sulfate
10ml of 10mg/ml vial
Morphine Sulfate
10ml of 25mg/ml vial
Morphine Sulfate
1ml of 10mg/ml vial
Morphine Sulfate
1ml of 15mg/ml vial
Morphine Sulfate
1ml of 5mg/ml vial
Morphine Sulfate
20ml of 15mg/ml vial
Morphine Sulfate
20ml of 50mg/ml vial
Morphine Sulfate
30ml of 150mg/30ml vial
Morphine Sulfate
4ml of 25mg/ml vial
Morphine Sulfate
50ml of 50mg/ml vial
Follow all the prescriber’s directions. The dose may need to be changed several times to find what works best for you.
Do not change the dose or take doses more often than instructed. An overdose can be dangerous.
Call the prescriber if pain is not controlled or gets worse.
Do not stop taking morphine doses without first talking to the doctor.
Please read the Medication Guide that comes with this medicine.
Morphine tablets, capsules, or oral solution can be taken with food or milk.
How to take morphine tablets:
Doses are usually taken every four hours.
For acute pain, treatment usually lasts only a few days.
Swallow the tablet with a drink of water.
Store morphine tablets at room temperature securely out of the reach of children and other people.
How to take morphine extended-release tablets:
Doses are usually taken every eight to 12 hours.
Swallow the extended-release tablet whole. Do not cut, break, or chew it.
Store morphine extended-release tablets at room temperature in a tightly closed, light-resistant container securely out of the reach of children and other people.
How to take morphine extended-release capsules:
Doses are usually taken every 12 to 24 hours.
Swallow the extended-release capsule whole. Do not cut, break, or chew it.
If you cannot swallow a capsule, it can be opened and sprinkled on a tablespoon of cool applesauce and taken that way. Consume the mixture immediately and drink a glass of water. Dispose of the empty capsule by flushing it down a toilet.
Store morphine extended-release capsules at room temperature protected from light and moisture. Keep the bottle out of the reach of children and other people.
How to take morphine oral solution:
Doses are usually taken every four hours.
Use only a calibrated oral syringe to measure doses. Do not use kitchen measuring devices or tableware.
Store morphine oral solution at room temperature protected from moisture. Keep the bottle out of the reach of children and other people.
How to take morphine suppositories:
Doses are usually taken every four hours.
Morphine suppositories are for rectal use only.
Use the entire suppository. Do not break or divide it.
Gently remove the suppository from its plastic packet.
Gently insert the suppository into the rectum as far as it will go.
Store morphine suppositories in their sealed packets and original carton at room temperature below 77˚F.
Ask the pharmacist for directions on how to dispose of leftover morphine. It should be flushed down the toilet or taken to a drug takeback center.
Do not take a missed or forgotten dose.
Take the next dose at its regular time.
Do not take two doses to make up for a missed dose.
This medicine is not right for everyone.
Do not use it if you had an allergic reaction to morphine or have:
Slowed breathing (respiratory depression)
Active or severe bronchial asthma
Gastrointestinal obstruction including an immobilized colon (paralytic ileus)
Morphine is a hazardous drug that can cause severe problems, particularly if too much is taken or the drug is misused. These problems include:
Slowed breathing (respiratory depression)
Stopped breathing (respiratory arrest)
Breathing problems while sleeping
Serotonin syndrome
Drug abuse
Dependence
Overdose
Death
Before starting morphine, tell the prescriber if you have:
Breathing or lung problems such as COPD, asthma, or sleep apnea
Liver problems
Kidney problems
Problems urinating
Thyroid problems
Pancreas or gallbladder problems
Stomach or intestinal problems
Low blood pressure
A history of seizures, head injury, or brain tumor
Mental health issues such as depression
A history of alcohol or drug abuse
Tell the doctor if you are pregnant, planning to become pregnant, breastfeeding, or planning to breastfeed before taking morphine.
This medicine may make you dizzy, drowsy, or lightheaded. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.
This medicine may make you constipated. The longer it’s used, the more likely you’ll experience constipation. Ask your prescribing clinician if it’s okay to use a laxative to treat constipation while taking morphine.
Do not stop taking morphine doses without talking to the doctor. The rapid discontinuation of morphine doses can cause severe withdrawal symptoms. The prescriber may need to slowly decrease the dose over several weeks before it can be safely stopped.
This medicine can be habit-forming. Do not use more than your prescribed dose. Call your doctor if you think your medicine is not working.
Morphine is a federally controlled substance. Sharing or giving this medicine to other people is dangerous and illegal. Keep it out of sight and out of reach of other people.
Morphine is a hazardous drug that can cause severe problems, particularly if too much is taken or the drug is misused. These problems include:
Slowed breathing (respiratory depression)
Stopped breathing (respiratory arrest)
Breathing problems while sleeping
Serotonin syndrome
Drug abuse
Dependence
Overdose
Death
Before starting morphine, tell the prescriber if you have:
Breathing or lung problems such as COPD, asthma, or sleep apnea
Liver problems
Kidney problems
Problems urinating
Thyroid problems
Pancreas or gallbladder problems
Stomach or intestinal problems
Low blood pressure
A history of seizures, head injury, or brain tumor
Mental health issues such as depression
A history of alcohol or drug abuse
Tell the doctor if you are pregnant, planning to become pregnant, breastfeeding, or planning to breastfeed before taking morphine.
This medicine may make you dizzy, drowsy, or lightheaded. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.
This medicine may make you constipated. The longer it’s used, the more likely you’ll experience constipation. Ask your prescribing clinician if it’s okay to use a laxative to treat constipation while taking morphine.
Do not stop taking morphine doses without talking to the doctor. The rapid discontinuation of morphine doses can cause severe withdrawal symptoms. The prescriber may need to slowly decrease the dose over several weeks before it can be safely stopped.
This medicine can be habit-forming. Do not use more than your prescribed dose. Call your doctor if you think your medicine is not working.
Morphine is a federally controlled substance. Sharing or giving this medicine to other people is dangerous and illegal. Keep it out of sight and out of reach of other people.
Serious side effects
Talk to a doctor if you notice any signs or symptoms of a possible serious side effect, including:
Trouble breathing, slow breathing, shallow breathing
Blue lips, fingernails, or skin
Extreme dizziness or weakness, shallow breathing, slow or uneven heartbeat, sweating, cold or clammy skin, seizures
Severe constipation, stomach pain, or vomiting
Severe confusion, lightheadedness, dizziness, or fainting
Anxiety, restlessness, fast heartbeat, fever, sweating, muscle spasms, twitching, nausea, vomiting, diarrhea, seeing or hearing things that are not there
Seizures
Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
Less Serious Side Effects
Constipation
Nausea
Vomiting
Sleepiness
Feeling tired
Dizziness
Headache
Abdominal pain
MSIR drug summary, Prescribers’ Digital Reference (PDR)
Duramorph morphine sulfate injection prescribing information, DailyMed (NIH National Library of Medicine)
Infumorph 200/Infumorph 500 morphine sulfate injection prescribing information, DailyMed (NIH National Library of Medicine)
Mitigo morphine sulfate injection prescribing information, DailyMed (NIH National Library of Medicine)
Morphine, StatPearls
Morphine sulfate injection prescribing information, DailyMed (NIH National Library of Medicine)
Morphine sulfate extended-release capsule prescribing information, DailyMed (NIH National Library of Medicine)
Morphine sulfate extended-release tablet prescribing information, DailyMed (NIH National Library of Medicine)
Morphine sulfate solution prescribing information, DailyMed (NIH National Library of Medicine)
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