Methadone Withdrawal: Timeline, Tapering, and Switching to Buprenorphine

What is methadone withdrawal?

It is opioid withdrawal on a slower clock. Methadone leaves the body slowly, so symptoms start later than they do after heroin and the acute phase runs longer. The symptoms themselves are the familiar ones. The methadone label lists restlessness, watery eyes, runny nose, yawning, sweating, chills, muscle aches and dilated pupils, and then irritability, anxiety, backache, joint pain, weakness, cramps, insomnia, nausea, poor appetite, vomiting, diarrhea, and a faster pulse, breathing and blood pressure.

Opioid withdrawal is rarely fatal by itself, but tolerance falls within days, so a return to a former dose can be fatal. The second half of that sentence matters more than the first. The end of a taper needs as much planning as the taper itself.

If you are looking for a clinic rather than a way off, our New Jersey methadone clinic guide lists the licensed programs by county.

Methadone withdrawal timeline

The half-life range is wide because people clear methadone at very different rates. We found no source that gives a reliable day-by-day calendar for one person, and that range is part of the reason. Read the timeline above as the general pattern. It will not predict any one person’s days.

The 1991 Gossop and Strang study is more than 30 years old, and it measured people being withdrawn with methadone in a hospital, not people stopping on their own. It still answers a common assumption. The authors found no difference between the two groups in when symptoms started or how long they lasted, and concluded that methadone’s use as a maintenance drug may lead to difficulties during withdrawal.

Tapering off methadone vs stopping abruptly

The label is direct about this: do not rapidly reduce or abruptly stop methadone in someone who may be physically dependent. For a person choosing to come off after a period of maintenance, it gives a starting rule that clinicians then adjust:

• Each dose reduction should generally be less than 10 percent of the established maintenance dose.
• 10 to 14 days should pass between reductions.
• The patient should be told about the high risk of relapse to illicit drug use after methadone maintenance ends.

Do the arithmetic on that rule: cuts of under 10 percent, 10 to 14 days apart, add up to months, not weeks. That is by design. The label adds that there is considerable variability in the right rate of taper from person to person, so the pace belongs to the prescriber and the patient together, and it can pause or reverse if symptoms or cravings climb.

Stopping all at once is the version to avoid. ASAM’s 2020 guideline recommends withdrawal management over abrupt cessation, because a sudden stop can bring strong cravings and acute withdrawal that put the person at risk for relapse, overdose and overdose death.

What helps during a methadone taper

• A slower pace or a pause when a step goes badly. The label says the right rate of taper varies considerably from person to person.
• Non-opioid comfort medicine. Lofexidine (Lucemyra) is FDA-approved to ease opioid withdrawal symptoms for up to 14 days; its label warns about low blood pressure and slow heart rate and says it is not a treatment for opioid use disorder. Clonidine is a related drug; see clonidine vs Klonopin.
• Treatment for sleep, cramps, diarrhea and nausea from the prescriber, rather than from a friend’s cabinet.
• Counseling and a plan for what comes after the last dose, made before the last dose.

Why the end of a taper is the dangerous part

Tolerance is what protects someone on methadone from a dose that would stop an opioid-naive person’s breathing. It does not last. The methadone label tells clinicians that any patient who has not taken opioids for more than 5 days may no longer be tolerant.

Pooled cohort studies in the BMJ (Sordo, 2017) and JAMA Psychiatry (Santo, 2021) found all-cause death rates about half as high or lower during time on methadone or buprenorphine than during time off them. The Sordo review also found sharply higher death rates in the weeks right after people leave opioid agonist treatment, and higher death rates in the first four weeks on methadone than later in treatment.

A methadone taper that ends without a plan ends at the most dangerous moment. ASAM says people who stop methadone should be told about the increased risk of overdose death if they return to illicit opioids, and should hear about the alternatives: buprenorphine, naltrexone, and naloxone for overdose. Keep naloxone in the house through the taper and for months after, tell someone where it is, and do not use alone. Our naloxone guide for families covers how to get it in New Jersey.

Coming off is a legitimate goal, and ASAM sets no recommended time limit on methadone treatment. The question worth asking is not “how fast can I be done” but “what will keep me alive and well when I am done.”

Switching from methadone to Suboxone (buprenorphine)

Some people want off methadone because of the daily clinic visits, not because they want off medication. For them, the question may be a switch to buprenorphine, and that is a medical procedure, not a pharmacy swap.

The problem is the same one behind precipitated withdrawal. Buprenorphine binds tightly and gives a weaker signal than methadone. Taken while enough methadone is still on the receptors, it can knock it off and cause sudden, severe withdrawal. Methadone lingers, so the window is long. The Suboxone label says people dependent on methadone may be more susceptible to precipitated and prolonged withdrawal during the start, and recommends buprenorphine without naloxone on the first two days for them.

None of this is a home project. The switch runs through the prescriber who will take over buprenorphine, ideally coordinated with the methadone program. Our guide to Suboxone, Subutex and Sublocade explains the buprenorphine forms, and our page on Suboxone withdrawal covers what coming off buprenorphine later looks like.

Switching to naltrexone is a different path. ASAM says a person must be completely withdrawn from methadone and other opioids before naltrexone can start; see naltrexone vs Vivitrol vs Antabuse.

Take-home doses and the clinic schedule

The rules on daily visits have loosened. The federal rules for OTPs, 42 CFR Part 8, were rewritten in 2024. Take-home doses depend on clinical judgment and time in treatment: in the first 14 days, a clinician can allow up to 7 days of take-homes for someone judged able to manage them safely. Ask the program how often you would need to come in at first.

If the schedule is the problem, raise it with the program before deciding to taper. A change in take-homes is easier to undo than a lost tolerance.

Can you detox from methadone at home?

A clinic-run taper is not a home detox in the risky sense: the program supplies the doses and the prescriber sets the pace. What does not belong at home is the unplanned version: stopping cold, buying pills to get through it, or starting buprenorphine without a clinician. Add pregnancy, alcohol or benzodiazepine use, heart disease, or a past bad withdrawal, and supervised care is the safer call. If you are pregnant, do not stop on your own: ASAM recommends treatment with methadone or buprenorphine rather than withdrawal for pregnant people who are physically dependent on opioids. If you are thinking about leaving a detox stay before it is over, read can you leave detox early first.

In New Jersey

Under New Jersey law P.L.2017, c.28, fully insured New Jersey plans and the State Health Benefits and School Employees’ plans cannot require prior authorization for the first 180 days per plan year of in-network treatment your own physician, psychologist or psychiatrist finds medically necessary, or, during those same 180 days, for outpatient prescription drugs that treat substance use disorder, such as buprenorphine and naltrexone, when that clinician finds them medically necessary. Self-funded employer plans, Medicare and Medicaid are not covered by that rule, so verify with the plan.

NJ FamilyCare covers buprenorphine, methadone, and naltrexone. For most NJ FamilyCare members, the state still pays opioid treatment programs directly, so ask the program, not the health plan, about methadone. Opioid treatment programs and residential care are scheduled to move into the NJ FamilyCare health plans in January 2027. The opioid detox guide lists New Jersey’s licensed opioid-capable programs.

For help independent of us, the state’s IME Addictions Access Center at 1-844-276-2777 screens NJ FamilyCare and uninsured residents and refers them to treatment, and ReachNJ, the state treatment line, is at 1-844-732-2465. Periscope Behavioral Health, which publishes this site, is opening a medical detox in Hammonton, Atlantic County, expected Summer 2027. Until it opens, Periscope Behavioral Health at (888) 313-3583, our publisher’s admissions line, can talk through options in New Jersey and Florida, including facilities Periscope operates. What a plan covers depends on the plan and the facility’s network status.

Before you start a taper, ask the program

1. How fast would my taper go, and can we pause or go back up if a step goes badly?
2. What will you give me for sleep, cramps and diarrhea along the way?
3. If I want to switch to buprenorphine instead, who starts it, and how do we avoid precipitated withdrawal?
4. What happens after my last dose: who do I see, and will I leave with naloxone?