How Maintenance Medications Work
Methadone and buprenorphine (the active ingredient in Suboxone) are the two most widely prescribed medications for opioid dependence in the United States. Both are opioids. Both activate opioid receptors. Both prevent withdrawal and reduce cravings by maintaining a controlled level of opioid activity in the brain. They are often referred to as medication-assisted treatment (MAT), reflecting the clinical consensus that these medications, combined with counseling, improve outcomes for people with opioid use disorder. The FDA's opioid medications page provides regulatory details on both medications, and SAMHSA's guide to medications for substance use disorders explains how they compare to other approved options.
Both are opioids. Both activate the same receptors that heroin, fentanyl, and prescription painkillers act on. The difference is in how they are administered, how they interact with the body, and who they are best suited for. This page covers each one in detail and then compares them directly. For an overview of all treatment modalities, see our types of opioid treatment guide.
Methadone
What Is Methadone Treatment?
Methadone is a long-acting full opioid agonist that has been used to treat opioid dependence and opioid use disorder since the 1960s. It works by activating the same brain receptors as other opioids, but it does so slowly and steadily, which prevents withdrawal symptoms and reduces cravings without producing the intense high associated with drugs like heroin or fentanyl. Decades of research, including studies compiled by the National Institute on Drug Abuse, have confirmed that methadone maintenance treatment reduces overdose deaths, lowers rates of infectious disease transmission, and improves overall health outcomes.
How Methadone Clinics Work
Methadone for opioid use disorder can only be dispensed through federally certified opioid treatment programs (OTPs). These are specialized clinics regulated by SAMHSA and the Drug Enforcement Administration (DEA), which classifies methadone as a Schedule II controlled substance. You cannot get methadone for addiction treatment from a regular pharmacy with a standard prescription.
When you first enter a methadone program, you will go through an intake process that includes:
- A medical evaluation and health history
- A urine drug screen
- Assessment of your opioid use history and severity
- Discussion of treatment goals
- Review of program rules and expectations
Daily Dosing
During the initial phase of treatment, you will visit the clinic daily to receive your dose. A nurse or medical professional will observe you taking the medication. This daily dosing structure is a core feature of methadone treatment and is designed to ensure proper use and monitor your response.
Doses typically start low (20-30 mg) and are gradually increased over several weeks until a stable dose is reached. The target dose varies by individual but usually falls between 60 and 120 mg per day.
Take-Home Doses
As you demonstrate stability in treatment, you become eligible for take-home doses, which reduce the number of clinic visits required. The typical progression:
- First 90 days - daily clinic visits (one take-home per week allowed)
- 90 days to 1 year - up to two take-homes per week
- 1 to 2 years - up to three take-homes per week
- 2+ years - up to six take-homes per week (monthly visits)
Side Effects of Methadone
Common side effects include:
- Constipation
- Sweating
- Drowsiness (especially early in treatment)
- Weight gain
- Dry mouth
- Reduced libido
- Difficulty concentrating during dose adjustments
Serious side effects are uncommon when methadone is taken as prescribed. However, methadone does carry a risk of respiratory depression, particularly during the first two weeks of treatment or after dose increases.
Who Is Methadone Treatment For?
Methadone may be a good fit if you:
- Have a moderate to severe opioid use disorder
- Have tried other treatments without sustained success
- Need a structured daily routine to support your recovery
- Are dependent on short-acting opioids like heroin or fentanyl
- Have been using opioids for an extended period
Methadone is also widely used during pregnancy, as it is considered safer for both the mother and fetus than continued opioid use or abrupt withdrawal.
Buprenorphine (Suboxone)
What Is Buprenorphine?
Buprenorphine is a partial opioid agonist, meaning it activates opioid receptors in the brain but produces a weaker effect than full agonists like heroin, fentanyl, or methadone. This partial activation is enough to reduce cravings and prevent withdrawal symptoms while carrying a lower risk of misuse and overdose. The FDA's buprenorphine information page provides regulatory details and approved formulations.
Unlike methadone, which must be dispensed at specialized clinics, buprenorphine can be prescribed by qualified physicians, nurse practitioners, and physician assistants in office-based settings. This means more people can access treatment closer to home, with fewer daily disruptions to their routine.
Suboxone vs. Subutex vs. Sublocade
Several formulations of buprenorphine are available:
- Suboxone (buprenorphine + naloxone) - the most commonly prescribed formulation. Available as a sublingual film or tablet. The naloxone component discourages misuse by injection.
- Subutex (buprenorphine only) - used primarily for patients who cannot tolerate naloxone, including pregnant women.
- Sublocade - a once-monthly injection administered by a healthcare provider. Eliminates the need for daily dosing.
- Generic buprenorphine/naloxone - lower-cost alternatives to brand-name Suboxone, widely available and equally effective.
How Buprenorphine Treatment Works
Buprenorphine treatment typically follows a three-phase process:
- Induction - your first dose of buprenorphine. You must be in early withdrawal before taking it, because buprenorphine can trigger precipitated withdrawal if taken too soon after using other opioids. For short-acting opioids, this usually means waiting 12 to 24 hours after your last use. For longer-acting opioids like methadone, the wait may be 24 to 72 hours.
- Stabilization - your dose is adjusted until cravings and withdrawal symptoms are well controlled. This phase typically lasts one to two months. Most patients stabilize at a dose between 8 mg and 24 mg per day.
- Maintenance - once stabilized, appointments become less frequent (typically monthly), and the focus shifts to sustained recovery, relapse prevention, and addressing underlying factors.
Finding a Buprenorphine Prescriber
As of 2023, the federal waiver requirement (the "X-waiver") has been eliminated. Any provider with a standard DEA registration can now prescribe buprenorphine for opioid use disorder. To find a prescriber:
- Search at FindTreatment.gov
- Call SAMHSA's helpline at 1-800-662-4357
- Ask your primary care physician, as many now prescribe buprenorphine directly
- Check with your insurance company for in-network providers
- Explore telehealth options, which have expanded access significantly
Side Effects of Buprenorphine
Common side effects include:
- Headache
- Nausea (especially early in treatment)
- Constipation
- Insomnia
- Sweating
- Numbness or tingling in the mouth (from sublingual films)
Most side effects are mild and diminish within the first few weeks.
Methadone vs. Buprenorphine - How They Compare
Both medications are effective. The best choice depends on your circumstances, medical history, and goals. Here is how they compare on key factors:
- Pharmacology - methadone is a full opioid agonist; buprenorphine is a partial agonist with a ceiling effect that limits overdose risk
- Access - methadone requires daily visits to a licensed clinic; buprenorphine can be prescribed in a regular doctor's office and picked up at a pharmacy
- Oversight - methadone programs provide more structure and daily accountability; buprenorphine allows more independence
- Safety in overdose - buprenorphine's ceiling effect makes it somewhat safer if taken in excess; methadone carries a higher risk of respiratory depression
- Pregnancy - both are used during pregnancy, though methadone has the longer track record. Subutex (buprenorphine without naloxone) is typically preferred for pregnant patients.
- Cost - methadone clinics may charge $100-$400 per month; generic buprenorphine/naloxone costs $50-$200 per month at retail pharmacies
- Withdrawal - tapering from methadone can be prolonged and difficult (weeks to months); buprenorphine withdrawal tends to be shorter, though still uncomfortable
The Honest Assessment
Both methadone and buprenorphine save lives. For patients with severe opioid use disorder who are at high risk of overdose, these medications provide stability that no other treatment can match in the short term. They reduce mortality, reduce disease transmission, and allow people to function, work, and maintain relationships.
It is equally true that both medications maintain physical opioid dependence. A patient on long-term methadone or buprenorphine who stops taking the medication will experience withdrawal. These medications manage dependence. They do not resolve it. For some patients, this trade-off is acceptable and even preferable. For others who want complete opioid independence, achieving that goal eventually requires medically supervised tapering and a transition plan that may include naltrexone and behavioral support.
This is honest information. Patients deserve it. It does not make these medications less valuable. It makes the conversation about them more complete.
Cost and Insurance
The cost of medication-assisted treatment varies by medication, insurance, and location. For a full breakdown, see our guide to paying for opioid treatment.
- With insurance - most private insurance plans and Medicaid cover both methadone and buprenorphine treatment, including the medication and associated visits
- Without insurance - methadone clinics typically charge $100-$400 per month; generic buprenorphine/naloxone can cost $50-$200 per month at retail pharmacies
- Patient assistance programs - manufacturers of Suboxone, Sublocade, and generic formulations offer assistance for uninsured or underinsured patients
- Discount programs - GoodRx and similar services can significantly reduce out-of-pocket medication costs
Finding a Program
To find a methadone clinic or buprenorphine prescriber in your area:
- Use the federal treatment locator at FindTreatment.gov
- Call SAMHSA's national helpline at 1-800-662-4357 (free, confidential, 24/7)
- Contact your state's substance abuse agency for a list of licensed programs
- Ask your primary care doctor or local hospital for referrals
For a step-by-step walkthrough of the treatment process, including intake and the first week, see our guide on what to expect in opioid treatment.