Side Effects of Morphine Sulfate
Other Possible Side EffectsFor many medications, the prescribing information carefully explains the exact percentage of side effects that were reported in clinical trials. However, the prescribing information for almost all older medications (including many morphine sulfate medications) include only vague information on side effects, with no percentages provided. Therefore, it can be difficult to know exactly how common (or how rare) the side effects of such medications may be.
The most common side effects of morphine sulfate are thought to include:
- Nausea and vomiting
- An unusual pleasant feeling (euphoria)
- Constipation (see Morphine and Constipation).
Less Common Side EffectsThere are other, less common morphine sulfate side effects that can occur. For these side effects, it is difficult to tell whether the side effect is caused by morphine sulfate or something else.
These less common side effects include, but are not limited to:
- A spinning sensation (vertigo)
- Abnormal dreams
- Absent menstrual periods
- Accidental injury
- Back pain
- Blurred vision or double vision
- Changes in taste
- Diarrhea and cramps
- Difficulty passing urine
- Difficulty swallowing
- Dry mouth
- Dry skin
- Facial flushing
- Fluid retention
- Heart palpitations
- High blood pressure (hypertension)
- Indigestion or heartburn
- Loss of appetite
- Sexual side effects, such as impotence (erectile dysfunction, or ED), decreased sex drive, or abnormal ejaculation
- Stiff or shaky muscles
- Taste changes
- Unusual dreams
- Voice changes
- Weight loss.