What are the side effects of morphine?

Side effects of morphine are often not life threatening. The most commonly reported side effects include: warm and tingling skin, redness, stomach pain, diarrhea, vomiting, decreased appetite, dizziness, memory problems, insomnia, nausea, a strange feeling of happiness, perspiring, headaches, constipation, anxiousness and feeling lightheaded.

Less common side effects of morphine include: change in appetite, dizziness, lack of menstrual period, pain in the back, iron deficiency, trouble seeing, food tastes differently, watery stool, abdominal cramps, trouble swallowing, dry mouth and skin, redness in the face, elevated body temperature, swelling, hiccups, elevated blood pressure, difficulty sleeping, strange dreams, chills, irregular heart beat, indigestion, accidental injury, weight loss, inability to ejaculate, lack of sexual arousal, impaired sex drive, weak or shaky muscles, change in voice and increased thirst.

Seek emergency medical attention if you think you are having an allergic reaction to morphine. An allergic reaction may consist of severe skin irritation, swelling around the eye and trouble breathing normally.

Also seek immediate attention if you experience serious side effects, such as difficulty walking, muscle weakness, strange shift in behavior, disorientation, slow heartbeat, shallow breathing, severe dizziness, fainting, trouble urinating, severe fatigue, change in breathing, low blood pressure, seizures and cold or moist skin.

Not all side effects are reported. So, if you experience symptoms that are out of the ordinary, report them to your doctor.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.