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Methadone
Average User Rating:
Methadone, 5 / 5 (2 votes)

Methadone Side Effects

The front and back of a methadone tablet.
Methodone for opiate and heroin addiction as well as chronic pain side effects and adverse reactions include the following:
  • constipation
  • dizziness
  • fatigue
  • headache
  • sweating
  • nausea and vomiting
  • problems breathing
  • anorexia
  • breathing problems
  • flushing
  • itching and hives
  • allergic reaction
  • changes in mood
  • sexual dysfunction
  • seizure
  • sudden death
  • low blood pressure
  • cardiac arrhythmia
  • gynecomastia
  • problems urinating
  • edema
  • vision problems
If you have experienced methadone side effects, fill out our report a bad drug form. Tell us your story.