Health Canada states that kratom "has potential for abuse and dependence." The published literature supports that, and the more interesting question is the magnitude, where the honest answer involves a methodological problem that almost nobody quoting the numbers mentions.

The figure everyone quotes

A 2020 study from Johns Hopkins University School of Medicine surveyed 2,798 people and reported that fewer than 3% of responses met criteria for moderate or severe substance use disorder related to kratom, with around 13% meeting some criteria. This is routinely cited as evidence of low dependence risk, frequently by people selling it.

The comparison usually offered alongside it is that roughly 8% to 12% of people prescribed opioid medications develop dependence, which makes kratom look favourable.

Why that figure understates the problem

The survey sampled current users. Anyone who developed a problem with kratom and stopped is not in the sample. Anyone whose use became disordered enough that they quit, sought treatment, or simply gave up is systematically excluded from a survey advertised to and completed by people currently using.

This is survivorship bias, it is structural rather than incidental, and it biases in a predictable direction: toward understating dependence. The authors themselves were explicit that a self-selected online survey of users cannot establish safety.

We cite the 3% figure because it is the best available data. We do not think it should be read as the true population rate, and neither should you.

What withdrawal looks like

A withdrawal syndrome is documented in case reports and clinical literature. Reported features overlap substantially with mild-to-moderate opioid withdrawal:

  • Muscle aches and joint pain
  • Runny nose, watery eyes, sweating
  • Insomnia
  • Irritability, restlessness, anxiety
  • Nausea, abdominal cramping, diarrhoea
  • Low mood
  • Craving

Onset is typically within a day of the last use, with the acute phase generally described as lasting several days to about a week. Most clinical descriptions characterise it as less severe than withdrawal from full opioid agonists, which is consistent with partial agonism at the receptor. Less severe is a meaningful difference. It is not the same as absent, and describing it as nothing is not accurate.

Tolerance

Tolerance is widely reported by long-term users, with escalating amounts needed over time for the same subjective effect. The 2017 survey of 8,049 users found adverse effects concentrated at higher doses and higher weekly frequencies, which is where an escalating pattern eventually leads.

The practical significance is that escalation moves a person into the dose range where the documented risks, including liver injury, appear more often in case reports.

Neonatal considerations

Neonatal abstinence syndrome has been reported in infants born to mothers who used kratom during pregnancy. The case literature is small but it exists, and it is a serious enough outcome that it belongs in any honest summary.

If someone wants to stop

We are not clinicians and cannot give medical guidance. What we can say is that this is a recognised clinical situation, that physicians and addiction medicine services do encounter it, and that a person seeking help should say plainly what they have been taking and how much. Withdrawal from any opioid-receptor-active substance is more comfortably and safely managed with clinical support than alone, particularly at higher levels of use or when other substances are involved.

In Canada, provincial health lines and addiction services can point someone toward local support without requiring a referral.

Why a vendor is telling you this

A company that sells a substance with dependence potential and does not say so is relying on customers not finding out. That is a bad foundation for a business and a worse one for the people buying.

Dependence potential is one of the reasons we do not publish dosage guidance, do not encourage daily use, and do not run loyalty mechanics that reward buying more. Those decisions cost us revenue, which is the point.

Sources

This is information, not medical advice. If you are struggling with your use of any substance, speak to a doctor or a local addiction service. Verified Botanicals sells botanical material for reference and research purposes only. Not intended for human consumption.