Morphine and Naltrexone (Oral Route)

Free

E-newsletter

Subscribe to Housecall

Our weekly general interest
e-newsletter keeps you up to date on a wide variety of health topics.

Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

• Bloating or swelling of the face, arms, hands, lower legs, or feet
• Chills
• Confusion
• Constipation
• Drowsiness
• Feeling of warmth
• Irritability
• Mental depression
• Rapid weight gain
• Redness of the face, neck, arms, and occasionally, upper chest
• Relaxed and calm
• Restlessness
• Sleepiness
• Sudden sweating
• Tingling of the hands or feet
• Trembling or shaking of the hands or feet
• Unusual weight gain or loss

• Abnormal dreams
• Being forgetful
• Blurred vision
• Burning while urinating
• Burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
• Clumsiness or unsteadiness
• Confusion about identity, place, and time
• Darkened urine
• Decrease in frequency of urination
• Decrease in urine volume
• Decreased awareness or responsiveness
• Delusions
• Dementia
• Difficult or labored breathing
• Difficult or painful urination
• Difficulty in passing urine (dribbling)
• Dizziness, faintness, or lightheadedness when getting up from a lying or sitting position suddenly
• Fast heartbeat
• Feeling of warmth
• Fever
• Indigestion
• Loss of appetite
• Nausea
• Nervousness
• Pains in the stomach, side, or abdomen, possibly radiating to the back
• Redness of the face, neck, arms, and occasionally, upper chest
• Seeing, hearing, or feeling things that are not there
• Severe nausea or vomiting
• Severe sleepiness
• Sweating
• Tightness in the chest
• Unusual tiredness or weakness
• Vomiting
• Yellow eyes or skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

• Acid or sour stomach
• Anxiety
• Belching
• Decreased appetite
• Diarrhea
• Difficulty with moving
• Excess air or gas in the stomach or intestines
• Full feeling
• Heartburn
• Itching skin
• Muscle pain or stiffness
• Muscle spasm
• Pain in the joints
• Passing gas
• Sleepiness or unusual drowsiness
• Stomach discomfort or upset
• Unusual drowsiness, dullness, tiredness, weakness, or feeling of sluggishness
• Weight loss

• Cold sweats
• Decreased interest in sexual intercourse
• Dizziness
• Dry mouth
• General feeling of discomfort or illness
• Goosebumps
• Headache
• Inability to have or keep an erection
• Increased sweating
• Lack or loss of strength
• Loss in sexual ability, desire, drive, or performance
• Night sweats
• Pressure in the stomach
• Rash
• Stomach tenderness
• Swelling of the abdominal or stomach area
• Trouble sleeping
• Upper abdominal or stomach pain

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

Copyright © 2013 Thomson Healthcare Inc. All rights reserved. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes.