Methadone is used to relieve strong pain and sometimes for other conditions.
Take methadone regularly as directed.
Take the tablets with a glass of water.
Measure the liquid carefully with an oral syringe or measuring spoon.
Take the missed dose as soon as possible. If it is close to the time for your next dose, skip the missed dose and carry on as normal. Do not take two doses at the same time.
Some medicines available without a prescription may react with methadone including:
Tell your pharmacist or doctor about all medicines or treatments that you may be taking, including vitamins, herbal products (e.g. St John's wort, valerian) or recreational drugs.
|Side Effects||Recommended action|
Slow or shallow breathing, hard to wake up
Change in heartbeat, fainting
|Tell your doctor immediately|
Confusion, dizziness, agitation, hallucinations, mood swings
|Tell your doctor|
Drowsiness, weakness, headache, trouble sleeping
Nausea, vomiting, stomach upset
Dry mouth or throat, changes in vision, trouble peeing
Swollen feet or legs
|Tell your doctor if troublesome|
If you notice any other effects, discuss them with your doctor or pharmacist.
This leaflet contains important, but not all, information about this medicine.
Prepared by the PILs Committee at Christchurch Hospital, Canterbury District Health Board, New Zealand. May 2021
For more general information about this sheet annd its contents, see: What does a My Medicines sheet cover?
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My Medicines Patient Information Leaflets (PILs) contain important, but not all, information about the medicines they describe.
For more information about the sheets, see: What does a My Medicines sheet cover?
My Medicines is developed by a team at the Canterbury District Health Board. Our team is made up of doctors, pharmacists, and a non-medical person to help us keep to plain language. We also discuss our information with specialist health professionals or groups when needed