Chronic pain is pain that lasts for a long time. Opioids, such as methadone and Suboxone, are strong medications prescribed to help relieve chronic pain. While they’re effective, these drugs can also be habit-forming and lead to addiction and dependence. Therefore, they must be used carefully.

Methadone treats chronic pain and opioid addiction. Suboxone treats opioid dependence only. Read on to learn more about how these two drugs compare.

Methadone is a generic drug. Suboxone is the brand name of the medication buprenorphine-naloxone. Check out more of their drug features below.

Drug nameMethadone Suboxone
What is the generic name?methadonebuprenorphine-naloxone
What are the brand-name versions?Dolophine, Methadone HCl Intensol, MethadoseSuboxone, Bunavail, Zubsolv
What does it treat?chronic pain, opioid addictionopioid dependence
Is this a controlled substance*?yes, it’s a Schedule 2 controlled substanceyes, it’s a Schedule 3 controlled substance
Is there a risk of withdrawal with this drug?yes†yes†
Does this drug have potential for misuse?yes¥yes¥
* A controlled substance is a drug that is regulated by the government. If you take a controlled substance, your doctor must closely supervise your use. Never give a controlled substance to anyone else. Schedule 2 drugs have higher potential for addiction than Schedule 3 drugs.
† If you’ve been taking this drug for longer than a few weeks, don’t stop taking it without talking to your doctor. You’ll need to taper off the drug slowly to avoid withdrawal symptoms such as anxiety, sweating, nausea, and trouble sleeping.
¥ This drug has a high misuse potential. This means you can get addicted to it. Be sure to take it exactly as your doctor tells you to. If you have questions or concerns, talk with your doctor.

Methadone comes in these forms:

  • oral tablet
  • oral solution
  • oral concentrate
  • injectable solution
  • oral dispersible tablet, which must be dissolved in a liquid before you take it

Brand-name Suboxone comes as a sublingual film, which dissolves under your tongue. Other versions of buprenorphine-naloxone (the generic drug in Suboxone) come as a sublingual tablet and a buccal film, which dissolves next to your cheek.

At the time this article was written, there were large price differences between methadone and Suboxone. Overall, Suboxone is more expensive than methadone. All generic forms of methadone are cheaper than the brand-name Suboxone sublingual film, which is not available as a generic. In general, generic drugs cost less than brand-name drugs.

In addition, the other forms of Suboxone that are available as generics (oral sublingual tablet and oral buccal film) are more expensive than the generic forms of methadone. Brand-name Suboxone is also more expensive than the brand-name versions of methadone, Methadose and Dolophine. For more information on prices, see .

Many insurance companies require a prior authorization for methadone or Suboxone. This means your doctor will need to get approval from your insurance company before the company will pay for the prescription.

There are restrictions on how you can access these medications. These restrictions depend on the type of drug and why it’s being used.

Only methadone can be used to treat chronic pain. Methadone for pain relief is available at some pharmacies, but not all. Talk to your doctor about what pharmacies can fill a methadone prescription to treat chronic pain.

Both methadone and Suboxone can be used to help you get through the detoxification (detox) process for opioids. Detox occurs when your body tries to get rid of a drug. During detox, you have withdrawal symptoms. Most withdrawal symptoms are not life-threatening, but they’re very uncomfortable. This is where methadone and Suboxone come in. They can reduce your withdrawal symptoms and your drug cravings.

Methadone and Suboxone both help manage detox, but the process for their use is different.

Treatment with methadone

When you use methadone for addiction treatment, you can only get it from certified opioid treatment programs. These include methadone maintenance clinics.

When starting treatment, you have to go to one of these clinics. A doctor observes you receiving each dose. Once the clinic doctor decides you’re stable with methadone treatment, they may allow you to take the drug at home between visits to the clinic. If you take the medication at home, you still need to get it from a certified opioid treatment program.

Treatment with Suboxone

For Suboxone, you don’t need to go to a clinic to receive treatment. Your doctor will give you a prescription. However, they will likely monitor the start of your treatment closely. They may require you to come to their office to get the medication. They may also observe you taking the drug. If you’re allowed to take the drug at home, your doctor may not give you more than a few doses at a time. Over time, however, your doctor will likely allow you to manage your own treatment.

The charts below list examples of side effects of methadone and Suboxone.

Common side effectsMethadone Suboxone
lightheadedness
dizziness
fainting
sleepiness
nausea and vomiting
sweating
constipation
stomach pain
numbness in your mouth
swollen or painful tongue
redness inside your mouth
trouble paying attention
faster or slower heart rate
blurry vision
Serious side effectsMethadone Suboxone
addiction
severe breathing problems
heart rhythm problems
problems with coordination
severe stomach pain
seizures
allergic reaction
opioid withdrawal
low blood pressure
liver problems

Symptoms of opioid withdrawal can include:

  • shaking
  • sweating
  • feeling hot or cold
  • runny nose
  • watery eyes
  • goose bumps
  • diarrhea
  • vomiting
  • muscle aches

Because both methadone and Suboxone are opioids, they can cause addiction and withdrawal symptoms. As a Schedule II drug, methadone has a higher risk of misuse than Suboxone. Symptoms of withdrawal from methadone can last three to six weeks. Symptoms of withdrawal from Suboxone can last from one to several months.

Don’t stop taking either drug on your own. If you do, your withdrawal symptoms will get worse. If you need to stop taking your drug, your doctor will slowly lower your dosage over time to help prevent withdrawal symptoms. For more information, read about coping with opiate withdrawal or going through methadone withdrawal.

Examples of withdrawal effects from methadone and Suboxone include:

Withdrawal effectsMethadone Suboxone
cravings
trouble sleeping
diarrhea
nausea and vomiting
depression and anxiety
muscle aches
fever, chills, and sweating
hot and cold flashes
tremors
hallucinations (seeing or hearing things that are not there)
headache
trouble concentrating

Suboxone and methadone can also cause withdrawal syndrome in a newborn if you take either drug during pregnancy. You may notice:

  • irritability
  • overactive behaviors
  • trouble sleeping
  • high-pitched cry
  • tremor
  • vomiting
  • diarrhea
  • not being able to gain weight

Read more: How drug use during pregnancy affects your child »

Both methadone and Suboxone can interact with other medications. In fact, methadone and Suboxone share many of the same drug interactions. Examples of drugs that methadone and Suboxone may interact with include:

  • benzodiazepines such as alprazolam, lorazepam, and clonazepam
  • sleep aids such as zolpidem, eszopiclone, and temazepam
  • anesthesia medications
  • other opioids such as buprenorphine and butorphanol
  • antifungal medications such as ketoconazole, fluconazole, and voriconazole
  • antibiotics such as erythromycin and clarithromycin
  • antiseizure drugs such as phenytoin, phenobarbital, and carbamazepine
  • HIV drugs such as zidovudine, efavirenz, and ritonavir

In addition to this list, methadone also interacts with other medications. These include:

  • heart rhythm drugs such as amiodarone, amitriptyline, citalopram, and quetiapine
  • monoamine oxidase inhibitors (MAOIs) such as selegiline and isocarboxazid
  • anticholinergic medications such as benztropine, trihexyphenidyl, atropine, and oxybutynin

Methadone and Suboxone can cause problems if you take them when you have certain health issues. If you have any of these, you should discuss your safety with your doctor before taking methadone or Suboxone:

  • kidney disease
  • liver disease
  • breathing problems
  • abuse of street or prescription drugs
  • alcohol addiction
  • mental health problems
  • heart rhythm problems

Also talk to your doctor before taking methadone if you have:

  • seizures
  • stomach problems such as bowel blockage or narrowing of your intestines

Talk to your doctor before taking Suboxone if you have:

  • thyroid problems
  • head injury or brain problems
  • prostate problems
  • adrenal gland problems

Methadone and Suboxone have many similarities and some key differences. Some of the more important differences between these drugs may include their:

  • drug forms
  • risk of addiction
  • cost
  • accessibility
  • side effects
  • drug interactions

Your doctor can tell you more about these differences. If you need treatment for opioid addiction, your doctor is the best place to start. They can help decide the best drug to help you get healthy.

Q:

Why can opioid withdrawal occur as a side effect of Suboxone?

A:

Taking Suboxone can lead to opioid withdrawal symptoms, especially if the dose is too high. This is because Suboxone contains the drug naloxone. This drug is added to Suboxone to discourage people from injecting it. If you inject Suboxone, the naloxone will cause withdrawal symptoms. But if you take Suboxone by mouth, your body absorbs very little of the naloxone component, so the risk of withdrawal symptoms is low. Taking high doses of Suboxone by mouth may still cause withdrawal symptoms, however.

Healthline Medical TeamAnswers represent the opinions of our medical experts. All content is strictly informational and should not be considered medical advice.