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Average User Rating:
Subsys, 2.69 / 5 (16 votes)

Subsys Side Effects

Serious Side Effects

Serious side effects have been reported if an overdose of Subsys is happening. Seek medical attention immediately if you feel any of these side effects:
  • Difficulty breathing
  • Drowsiness, confusion, feeling faint
  • Decreased blood pressure

Common Side Effects

  • Constipation, infrequent bowel movements, or hard stools
  • Dizziness
  • Headache