Advertisement

What are the side effects associated with methadone?

Methadone can cause serious side effects like shallow or difficult breathing and an irregular heartbeat. These can be life-threatening. Other side effects include: hallucinations, confusion, dizziness, fainting, chest pain, headaches, weakness, nausea, vomiting, loss of appetite, constipation, weight gain, stomach pain, sweating, dry mouth, flushing, swelling of extremities, vision problems, mood changes, difficulty sleeping, feeling nervous or anxious, decreased sex drive or trouble with orgasm, impotence and missed menstrual periods. Symptoms of an allergic reaction are serious and require immediate medical attention. Call 911, if you experience itching, hives, seizures, rash or swelling of the face, lips, throat or tongue.

Continue Learning about Opiate Agonists

What should I avoid doing when taking opioid drugs for short-term pain?
Travis M. Hendry, MDTravis M. Hendry, MD
While taking opioid medication (strong medications that affect the way your brain handles pain s...
More Answers
Who is at risk for breathing problems caused by opioid medication?
Travis M. Hendry, MDTravis M. Hendry, MD
Opioid therapy can decrease your breathing, especially during sleep. This problem, called respir...
More Answers
Can I use fentanyl if I have a history of asthma?
Stacy Wiegman, PharmDStacy Wiegman, PharmD
You may be able to use Actiq (fentanyl) if you have a history of asthma, but you should tell your do...
More Answers
What medications interact with opioids?
Dr. Darria Long Gillespie, MDDr. Darria Long Gillespie, MD
If you are taking a benzodiazepine, mifepristone, or sodium oxybate, you should not take opioids. ...
More Answers

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.