Drug interactions between fluvoxamine and methadone
Interactions between your drugs
methadone ↔ fluvoxamine
Applies to:methadone and fluvoxamine
FluvoxaMINE may increase the levels of methadone in your body. You may need a dose adjustment if you have been taking methadone and are starting treatment with fluvoxaMINE. Let your doctor know if you experience excessive drowsiness, nausea, weakness, or difficulty or shallow breathing while taking these medications, as they may be symptoms caused by excessive effects of methadone. High blood levels of methadone can also occasionally cause an irregular heart rhythm that may be serious. You should seek immediate medical attention if you develop sudden dizziness, lightheadedness, fainting, or fast or pounding heartbeats. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Drug and food interactions
Applies to: fluvoxamine
Alcohol can increase the nervous system side effects of fluvoxaMINE such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with fluvoxaMINE. Do not use more than the recommended dose of fluvoxaMINE, and avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. Talk to your doctor or pharmacist if you have any questions or concerns.
Applies to: methadone
Grapefruit juice can increase the blood levels and effects of methadone. If you regularly consume grapefruits or grapefruit juice, you should be monitored for side effects and/or changes in methadone levels. Do not increase or decrease the amount of grapefruit products in your diet without first talking to your doctor. Orange juice is not expected to interact.
Therapeutic duplication warnings
No therapeutic duplications were found for your selected drugs.
Drug Interaction Classification
|No information available.|
Do not stop taking any medications without consulting your healthcare provider.