Does Methadone Interact With Antidepressants?

Methadone is a medication used to treat opioid addiction and manage chronic pain. It works by reducing withdrawal symptoms and cravings. However, methadone can interact with many other medications, including antidepressants. These interactions can change how well methadone works in the body, which can be a problem for people who rely on it for treatment. Antidepressants are medications used to treat depression, anxiety, and other mental health conditions. When taken together with methadone, some antidepressants can make methadone more effective, while others can make it less effective. This is because antidepressants can either speed up or slow down how quickly the body breaks down methadone.

Methadone treatment relies on taking the right dose to control withdrawal symptoms and cravings. If the dose isn’t working as it should because of an interaction with an antidepressant, people may start to feel withdrawal symptoms again. This can be uncomfortable and may even lead to a relapse. That’s why it’s essential for anyone taking methadone to talk to their doctor about any other medications they’re taking, including antidepressants.

Learn more about negative drug interactions with methadone

Methadone And Antidepressant Drug Interactions

Some people will intentionally take antidepressants as a way to increase the effects of methadone. It is considered a sign of abuse when other drugs are taken to increase the effects of methadone taken to treat opioid dependence.

Methadone And Benzodiazepines

Benzodiazepines taken with methadone can enhance sedative effects felt from methadone intake. When taken to excess, this can lead to respiratory depression and potential death. Benzodiazepine antidepressants include diazepam (Valium), clonazepam (Klonopin), lorazepam (Ativan), and alprazolam (Xanax).

Methadone And MAOIs

Both methadone and monoamine oxidase inhibitors (MAOIs) interact with serotonin neurotransmitters. When these drugs are taken together, it increases the risk of serotonin syndrome.

Serotonin syndrome symptoms include:

• rapid heart rate
• high blood pressure
• agitation and confusion
• diarrhea
• dilated pupils
• sweating
• muscle rigidity
• headache
• goosebumps
• irregular heartbeat
• high fever
• unconsciousness
• seizures

Some MAOIs, a type of antidepressant, can cause problems when taken with methadone. These include methylene blue, tranylcypromine (Parnate), isocarboxazid (Marplan), linezolid (Zyvox), phenelzine (Nardil), and selegiline (Eldepryl, Emsam, Zelapar). Taking these drugs together can lead to serious side effects and health risks.

Methadone And SSRIs

The selective serotonin reuptake inhibitors (SSRIs) like sertraline (Zoloft) and fluoxetine (Prozac) work to inhibit methadone metabolism. This results in increased methadone bioavailability and stronger effects from methadone. Because methadone and SSRIs both work on serotonin pathways, a person taking both at the same time may experience serotonin syndrome.

Methadone And Tricyclic Antidepressants

Some tricyclic antidepressants may increase the risk of irregular heartbeat that may be life-threatening. Although this drug interaction is not common, it is serious enough that people taking these prescription medications should avoid mixing these drugs.

Some tricyclic antidepressants that may interact poorly with methadone include:

• amitriptyline
• doxepin
• imipramine
• trimipramine

Managing Depression When On Methadone

Many people feel more “themselves” when they have safe access to their antidepressants. Because methadone interacts poorly with many antidepressants, it’s important to work towards a treatment plan that is effective for treating both depression and opioid use disorder. Dual diagnosis programs encourage people with depression that are taking methadone to embrace behavioral therapy in recovery and stick to the appropriate tapering schedule.

In some inpatient programs, a daily structure that includes therapy and regular exercise has been found to help depression.

Treatment Services For Opioid Abuse

Dealing with mental health issues and substance abuse at the same time can be tough. When someone has both of these problems, it’s called a co-occurring disorder. It’s important to treat both the mental health issue and the substance abuse problem together.

If you or someone you care about is struggling with opioid abuse, there is help available. Inpatient and outpatient rehab programs can provide the support and treatment needed to overcome addiction. These programs offer therapy, counseling, and other services to help people deal with the physical, emotional, and mental aspects of addiction. With the right treatment and support, it’s possible to recover from opioid abuse and build a healthier, happier life.

Talk to an addiction specialist today to learn more about the best addiction treatment options for your needs.

Written by the Addiction Resource Editorial Staff