Updated July 2026 · Originally published February 12, 2026

The short answer

Kratom withdrawal typically lasts 7 to 14 days. Symptoms begin 6 to 12 hours after the last dose, peak during days 1 to 3 with anxiety, muscle aches, GI upset, and severe insomnia, then physical symptoms substantially fade by day 7. Cravings and low mood (post-acute withdrawal) commonly persist 2 to 4 weeks. Buprenorphine-based medication-assisted treatment compresses the rough window from weeks to days for most patients.

Onset
6–12 hrsafter last dose
Peak
Days 1–3hardest window
Physical fade
~Day 7for most patients
Post-acute
2–4 wkscravings & low mood

Kratom withdrawal is real, clinically significant, and for many patients harder than they expect. Because kratom’s active compounds work on the same mu-opioid receptors that other opioids do, the medical treatment that works for opioid withdrawal also works for kratom withdrawal — including buprenorphine-based MAT. Here’s what you’re typically looking at if you’re coming off kratom.

Why Kratom & 7-OH Withdrawal Is Opioid-Type

Kratom (Mitragyna speciosa) contains two alkaloids that matter here: mitragynine, which is the primary compound in plain leaf-powder kratom, and 7-hydroxymitragynine (7-OH), which is a more potent metabolite and is also the basis of the concentrated 7-OH products sold at many tobacco shops and convenience stores. Both activate the mu-opioid receptor — the same receptor targeted by heroin, fentanyl, and prescription opioids.

Because of that shared mechanism, regular kratom or 7-OH use produces tolerance and physical dependence the same way other opioid use does. Stopping suddenly produces a withdrawal syndrome that, while usually milder than heroin withdrawal at the peak, can still be severe enough to drive patients back to use within a day or two.

Concentrated 7-OH products, which have become widely available in the last few years, are associated with more intense withdrawal than plain leaf kratom in clinical reports. This isn’t surprising — the higher mu-receptor activation during use means the body adapts more, and the gap during withdrawal is deeper. The FDA cited this dependence-and-abuse pattern when it recommended Schedule I classification for concentrated 7-OH in July 2025.

I

What Does 7-OH Withdrawal Feel Like?

7-OH withdrawal feels like a fast, intense opioid withdrawal — the flu-like aches, nausea, sweating, and crushing anxiety of kratom withdrawal, but usually arriving sooner and hitting harder. Because concentrated 7-hydroxymitragynine (7-OH) products are short-acting and most people dose them several times a day, the gap can open within a few hours of the last dose — often faster than the 6-to-12-hour onset typical of leaf-powder kratom.

Patients coming off concentrated 7-OH most often describe:

  • A faster, sharper onset — restlessness, yawning, watery eyes, and a rising sense of dread within hours, not the next morning.
  • Relentless cravings — the frequent-dosing habit means the body expects the next dose constantly, and the urge to redose is usually the single hardest symptom.
  • Deeper physical symptoms at the peak — stomach cramps, diarrhea, muscle and bone aches, hot-and-cold sweats, and restless legs, typically worst on days 2 and 3.
  • Wrecked sleep and a flat, gray mood that outlast the physical symptoms by a week or more.

These symptoms are a physical dependence response: your nervous system reacting to the sudden absence of an opioid it had adapted to. A correctly timed dose of buprenorphine fills the same receptors 7-OH was occupying and stops most of this withdrawal before it builds. Most patients who start treatment for 7-OH dependence never go through the full week-long peak at all. Book an appointment or call 423-498-2000 and we’ll talk through your situation, including the timing of your first dose.

Worried about getting through the peak?

Same-week appointments at all four clinics. Most patients who start buprenorphine never go through the full week-long peak. Call and we’ll talk through your situation and verify your insurance first.

Call 423-498-2000 Book Appointment
II

The Typical Day-by-Day Timeline

Every person’s withdrawal is individual, but most patients follow a recognizable arc. This timeline assumes daily or near-daily use for weeks or months; shorter use patterns produce a milder and shorter withdrawal.

1
6 to 12 hours after your last dose

Onset

The first symptoms are typically anxiety, restlessness, runny nose, sweating, and muscle aches. Many patients describe it as “getting the flu but knowing it’s not the flu.” Sleep becomes difficult. Cravings for kratom or 7-OH intensify.

2
Days 1 to 3

Peak Hardest window

This is the hardest window. Expect some combination of:

  • Muscle and joint aches, often described as worse than it “should” be
  • Gastrointestinal symptoms: nausea, stomach cramps, diarrhea
  • Runny nose, watery eyes, sweating alternating with chills
  • Restless legs, inability to sit still
  • Severe anxiety, often with a feeling of dread or panic
  • Insomnia — sleep is short, broken, and unrefreshing
  • Intense cravings, frequently the single hardest symptom
  • Low mood, tearfulness, irritability

Physical symptoms are typically worst on days 2 and 3. Medically, kratom withdrawal at peak looks like moderate opioid withdrawal and scores in the mild-to-moderate range on the COWS scale. It is not usually medically dangerous in the way alcohol or benzodiazepine withdrawal can be, but it is deeply unpleasant and highly relapse-prone — a pattern first documented in regular-user cohort studies and reaffirmed by a 2023 scientific expert forum on kratom withdrawal.

3
Days 4 to 7

Physical symptoms fade, cravings persist

The physical symptoms — aches, GI upset, sweating — typically start lifting by day 4 and are substantially improved by day 7 for most patients. Sleep starts to return, though it may remain lighter than baseline for another week or two. The part that lingers is psychological: cravings, low mood, and a flat or blunted feeling where motivation used to be.

4
Weeks 2 to 4

The post-acute window

This is when most relapses happen during unsupported withdrawal. By this point the physical symptoms are usually manageable, but persistent cravings, low mood, and the memory of how kratom used to relieve them wear people down. Patients in this phase often use words like “dead inside” or “everything is gray.” These post-acute symptoms ease over the following weeks as your brain chemistry normalizes, though how long that takes varies from person to person.

5
Month 2 and beyond

Recovery

For most patients who make it past the first month, things steadily improve. Sleep normalizes, mood lifts, energy comes back, and cravings drop from constant to occasional.

Recovery routine day-to-day during early kratom abstinence
The first week is the hardest. Medication can compress it from weeks to days.
III

When Medical Help Matters

Uncomplicated kratom withdrawal is not usually medically dangerous, but there are situations where you should not white-knuckle it alone:

  • You’ve tried to stop before and relapsed. Multiple unsupported attempts with relapse between them suggests unsupported withdrawal isn’t going to work this time either. Medication-assisted treatment dramatically improves the odds of making it past the first-week window.
  • You’re using concentrated 7-OH products. Withdrawal from 7-OH concentrates is more intense and more relapse-prone than leaf kratom. Medical support is strongly indicated.
  • You have co-occurring anxiety, depression, or PTSD. Withdrawal amplifies underlying mental health conditions. Integrated treatment for both is much more effective than treating them sequentially.
  • You have other medical conditions that could be destabilized by withdrawal stress — cardiovascular, GI, or mental health.
  • You’re also using other opioids, alcohol, or benzodiazepines. Polysubstance withdrawal has higher risk and almost always warrants medical oversight.
IV

Why MAT Works for Kratom

Because kratom acts on mu-opioid receptors, buprenorphine — the active ingredient in Suboxone and in the long-acting injections Sublocade and Brixadi — fills those same receptors with a partial agonist. Patients on a stable dose find that cravings quiet, sleep returns, the physical symptoms never hit, and the post-acute “everything is gray” window is substantially compressed. Case-series and systematic-review literature on buprenorphine/naloxone for kratom dependence consistently documents this pattern. The need for accessible treatment is reinforced by the CDC’s March 2026 MMWR report showing a 1,200% increase in kratom-related calls to U.S. poison centers from 2015 to 2025, and by Tennessee Department of Health data identifying withdrawal as the #1 reason Tennesseans visit the ER after using kratom in 2025.

On a stable buprenorphine dose, most patients find cravings quiet down, sleep returns, and the physical withdrawal symptoms never hit.

What MAT changes

For patients with kratom use disorder who want to stop, our approach mirrors what we do for any other opioid dependence: a first visit with DSM-5 assessment and COWS scoring, induction onto buprenorphine at an appropriate time (usually once mild-to-moderate withdrawal is present), counseling, and follow-up. Most patients who start this path do not go through the week-long peak at all.

For a fuller picture of how we approach kratom and 7-OH dependence, see our kratom treatment page.

A note on newer analogs. Beyond leaf kratom and concentrated 7-OH, laboratory-made 7-OH analogs such as MGM-15 have begun appearing in the U.S. market. There are no published studies on MGM-15 withdrawal specifically, so we will not put a timeline on it — but because it acts on the same mu-opioid receptors, dependence is expected to follow an opioid-type course, and the same buprenorphine-based treatment applies. MGM-15 has not turned up in published Tennessee or North Georgia surveillance data, though we have begun seeing these products in our Chattanooga clinic; our MGM-15 & Oxonol treatment page covers what it is and how we treat it.

V

Frequently asked questions about kratom withdrawal

How long does kratom withdrawal last?+
Kratom withdrawal typically lasts 7 to 14 days for the physical symptoms, with a post-acute window of low mood and cravings that persists 2 to 4 weeks. Onset begins 6 to 12 hours after the last dose, symptoms peak during days 1 to 3 with anxiety, muscle aches, GI upset, and severe insomnia, then physical symptoms fade by day 7 for most patients. Buprenorphine-based medication-assisted treatment substantially shortens this timeline.
When is kratom withdrawal at its peak?+
Kratom withdrawal peaks during days 1 to 3 after the last dose. The hardest symptoms during this window typically include muscle and joint aches, gastrointestinal symptoms (nausea, stomach cramps, diarrhea), runny nose and watery eyes, sweating alternating with chills, restless legs, severe anxiety with a sense of dread, intense cravings, insomnia that is short and unrefreshing, and low mood. On the COWS clinical scale, kratom withdrawal at peak generally scores in the mild-to-moderate range.
Is kratom withdrawal medically dangerous?+
Uncomplicated kratom withdrawal is not usually medically dangerous in the way alcohol or benzodiazepine withdrawal can be. However, it is highly relapse-prone, and there are situations in which medical support is strongly indicated: prior failed unsupported attempts, use of concentrated 7-OH products, co-occurring anxiety, depression, or PTSD, polysubstance use involving other opioids, alcohol, or benzodiazepines, and any pre-existing cardiovascular, GI, or mental-health condition that withdrawal stress could destabilize. In those situations medication-assisted treatment dramatically improves outcomes.
Is 7-OH withdrawal worse than leaf-kratom withdrawal?+
Yes. In clinical reports, concentrated 7-hydroxymitragynine (7-OH) products are associated with more intense withdrawal than plain leaf-powder kratom. The higher mu-opioid receptor activation during use means the body adapts more, so the physiological gap during abstinence is deeper and the withdrawal syndrome is harder. This dependence-and-abuse pattern is one of the reasons the FDA formally recommended Schedule I classification for concentrated 7-OH products in July 2025. Patients coming off 7-OH concentrates almost always benefit from medical support.
Can buprenorphine (Suboxone, Sublocade, Brixadi) help with kratom withdrawal?+
Yes. Because kratom alkaloids act on the mu-opioid receptor, buprenorphine — a partial opioid agonist — fills those same receptors and prevents most of the withdrawal syndrome from emerging. Patients on a stable buprenorphine dose typically experience the opposite of withdrawal: cravings quiet, sleep returns, physical symptoms never hit, and the post-acute low-mood window is substantially compressed. Case-series and systematic-review literature on buprenorphine/naloxone for kratom dependence consistently document this pattern across both leaf-kratom and concentrated 7-OH use.
What does day 1 of kratom withdrawal feel like?+
Day 1 of kratom withdrawal usually begins 6 to 12 hours after the last dose with anxiety, restlessness, runny nose, sweating, and muscle aches. Many patients describe the early hours as “getting the flu but knowing it’s not the flu.” Sleep becomes difficult, and cravings for kratom or 7-OH intensify steadily through the first 24 hours as the body recognizes the absence of the opioid effect. Day 1 is uncomfortable but not yet at peak severity — that arrives during days 2 and 3.

If You’re Ready to Stop

Talk to our team

Same-week appointments at all four clinics

Call 423-498-2000 or submit a contact request. At your first visit, a clinician will walk through where you are, what your options look like, and — if it’s clinically appropriate — get you started on a treatment plan that makes the next week much easier than the last one was.

Book Appointment Call 423-498-2000 Verify Insurance

Related Kratom & 7-OH Reading

Other articles in our kratom series:

Treatment

Kratom & 7-OH Addiction Treatment

Our clinical approach, Tennessee data, and regulatory context.

Read article →

How it works

Suboxone for Kratom Withdrawal

Why buprenorphine works for kratom dependence, induction timing, what to expect.

Read article →

Drug identity

7-OH vs Kratom: Why Concentrated Products Are Different

The science behind why 7-OH concentrates behave like opioids, and why withdrawal from them is harder.

Read article →

Self-taper

How to Taper Off Kratom: A Safe Approach

When a self-taper works, when it doesn’t, and what to do either way.

Read article →

Legal tracker

Tennessee Kratom Ban Law 2026: HB1649/SB1656

Matthew Davenport’s Law was signed May 7, 2026 (Public Chapter 950) and took effect July 1, 2026. What it does and what it means for current users.

Read article →

References

Primary clinical and public-health sources cited in this article.

  1. Singh D, Narayanan S, Vicknasingam B. “Kratom (Mitragyna speciosa) dependence, withdrawal symptoms and craving in regular users” (Drug Alcohol Depend, 2014). [PubMed]
  2. Eldridge WB, Foster C, Wyble L. “Kratom Withdrawal: A Systematic Review with Case Series” (Pediatrics / J Addict Med review series, 2018). [PubMed]
  3. Khazaeli A, Jerry JM, Vazirian M. “Treatment of Kratom Withdrawal and Dependence With Buprenorphine/Naloxone: A Case Series and Systematic Literature Review” (J Addict Med, 2020). [PubMed]
  4. Henningfield JE, Grundmann O, Garcia-Romeu A, et al. “Kratom withdrawal: Discussions and conclusions of a scientific expert forum” (Drug Alcohol Depend Rep, 2023). [PubMed]
  5. U.S. Food and Drug Administration. “FDA Takes Steps to Restrict 7-OH Opioid Products Threatening American Consumers” (Schedule I recommendation to DEA, July 29, 2025). [FDA]
  6. Centers for Disease Control and Prevention. “Increases in Kratom-Related Reports to Poison Centers — National Poison Data System, United States, 2015–2025.” MMWR 2026;75(11). [CDC MMWR]
  7. Tennessee Department of Health, Overdose Surveillance Program. “Kratom Overdose Trends in Tennessee” (Emerging Trends Brief, February 2026). [TDH]