Possible Side Effects
  1. Methadone is highly addictive.


  2. After stabilization, you will no longer experience a high.


  3. Methadone should block the effects of other narcotics.


  4. Moderate doses can be lethal to those not addicted to narcotics.


  5. You may experience nausea (do not take on an empty stomach).


  6. Constipation (increase fiber intake and fluids).


  7. Weight gain or loss.


  8. Possible decrease in sexual interest at high dosage


  9. Drowsiness.


  10. Excessive sweating.