K2 Spice Abuse Statistics
K2 and Spice statistics describe reported use, poison-center calls, and emergency visits. Each measure has limits and does not directly count addiction.
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How Common Is K2 Spice Abuse?
K2 and Spice are names for products containing lab-made synthetic cannabinoids. These drugs can act very differently from cannabis.[1]
Survey estimates measure reported use. Poison-center records count calls, and emergency records count visits. None of these is a direct count of addiction.[8][11][12]
According to the Substance Abuse and Mental Health Services Administration’s (SAMHSA) 2022 National Survey on Drug Use and Health (NSDUH), an estimated 7,216,000 people aged 12 and older had used synthetic marijuana at least once in their lifetime.[8] This is not the number who used it during that year or who had an addiction.[8]
K2 products can cause severe illness and death. Their chemicals and strength can vary between packages, even under the same brand name. Descriptions such as “fake weed” do not mean their effects are the same as marijuana.[1]
Fast Facts About K2 Spice Statistics
- The 2022 NSDUH estimated that 7,216,000 people aged 12 and older had used synthetic marijuana, also called K2 or Spice, in their lifetime, not necessarily during that year.[8]
- Poison-center calls and emergency visits measure reported contacts or visits, not how many people have an addiction.[11][12]
- Frequent use can lead to serious withdrawal symptoms and may require medical assessment.[2]
Who Is Abusing K2 Spice?
K2 products have been sold as herbal incense through shops and online. The people represented in a college survey can differ substantially from those treated for poisoning, so each demographic finding needs its setting and date.[10][9][3]
K2 Spice Abuse by Age
A University of Florida survey conducted in 2010 found that 69 of 852 responding college students, or 8%, had ever used K2.[9] Use was more common among younger and earlier-year students in that sample. This was a single-campus, self-reported survey with a 36% response rate, not a national estimate for all college students.[9]
SAMHSA’s 2022 NSDUH estimated the following past-year synthetic marijuana use within each age group:[8]
- Ages 12–17: 105,000 people, or 0.4% of that age group.[8]
- Ages 18–25: 220,000 people, or 0.6%.[8]
- Ages 26 and older: 462,000 people, or 0.2%.[8]
K2 Spice Abuse by Gender
In the University of Florida survey, male students were more likely than female students to report having used K2. That finding describes the responding students and cannot establish a national sex difference by itself.[9]
A Centers for Disease Control and Prevention (CDC) report covering 50 U.S. toxicology registry sites during 2010–2015 found that 379 of 456 patients with synthetic cannabinoid poisoning, or 83.1%, were male.[3] These were cases referred for specialist assessment of serious or potentially serious poisoning, not a survey of everyone who used K2.[3]
K2 Spice Abuse by Race
The University of Florida study did not find clear statistical evidence of an association between race or ethnicity and reported K2 use in its sample. The researchers could not draw national conclusions about race or ethnicity from this sample.[9]
How Common Is K2 Spice Addiction?
Having used K2 is not the same as having an addiction. The NSDUH figures above measure reported use, while poison-center and emergency department records measure contacts or visits involving harm.[8][11][12]
K2 Spice can lead to dependence and withdrawal. Dependence means the body has adapted to a drug and symptoms can occur when use stops. The risk and severity depend on the product and pattern of use, so a fixed “100 times stronger” description cannot describe every package.[1][2]
K2 Spice Overdose Statistics
Poison-center calls and emergency department visits show that synthetic cannabinoids can cause serious harm. They are not interchangeable with confirmed overdose deaths or the number of unique people affected.[11][12]
- The Drug Enforcement Administration’s (DEA) 2017 National Drug Threat Assessment reported 2,695 calls to U.S. poison centers about synthetic cannabinoid exposure in 2016.[11] Calls about exposure are not a complete count of overdoses.[11]
- On November 16, 2015, New York City reported more than 6,000 synthetic-cannabinoid-related emergency department visits since January of that year.[13] The announcement counted visits, not unique patients or hospital admissions.[13]
- About 78% of the estimated 28,531 U.S. emergency department visits involving synthetic cannabinoids in 2011 were among people aged 12–29.[12] This percentage is calculated from the age-group counts in SAMHSA’s report. It describes visits in 2011, not current use among young people.[12]
How Often Do People Die from K2 Spice Abuse?
Synthetic cannabinoid use can be fatal, but an outbreak count should not be presented as a national annual death total.[1][4]
In an Illinois outbreak linked to the blood-thinning chemical brodifacoum, CDC reported 155 confirmed or probable cases and four deaths as of April 25, 2018. Brodifacoum is used in rat and mouse poisons. This was a specific contamination outbreak, not evidence that every K2 product contains rat poison.[4]
Patients in that outbreak had bleeding, frequently including blood in the urine. Unusual bleeding after K2 use needs urgent medical assessment. Other K2 products can also cause serious effects without this contaminant.[4][1]
Serious effects reported after K2 use include:[10]
- Elevated heart rate
- Elevated blood pressure
- Tremors
- Seizures
- Vomiting
- Hallucinations or psychosis, which can involve losing touch with reality
- Agitation
- Anxiety
- Pallor or paleness
- Numbness and tingling
- Unconsciousness
Call 911 immediately if someone collapses, has a seizure, has trouble breathing, or cannot be awakened after using K2 spice.[7] For other suspected poisoning symptoms, contact Poison Control at 1-800-222-1222 for guidance.[7]
Treatment and Recovery Statistics for K2 Spice
A 2026 British Association for Psychopharmacology guideline describes limited treatment evidence and no established medication treatment for ongoing synthetic cannabinoid use or preventing a return to use. That does not mean care is unavailable: clinicians can address poisoning, withdrawal, mental health needs, and support for changing drug use.[5]
Suddenly stopping K2 spice after frequent use can cause serious withdrawal symptoms, including seizures, chest pain, a rapid heartbeat, and difficulty breathing. Medical assessment can help determine the level of care needed. Counseling may support ongoing recovery, but it does not replace medical care for serious withdrawal symptoms.[2]
Behavioral care may include cognitive behavioral therapy (CBT), which helps people identify patterns in thoughts and behavior and develop coping skills. This is an established approach in substance-use care, but general treatment guidance should not be mistaken for a measured K2-specific recovery success rate.[6]
Get Treatment for K2 Spice Abuse
K2 spice can contain extremely dangerous or life-threatening chemicals without the user even knowing. If you use K2 spice frequently or become unwell when cutting back, seek medical advice about stopping and the support you may need. Do not assume that withdrawal will be mild.[2]
If you or a loved one is ready to seek treatment for K2 spice abuse issues, there are providers ready to help. Talk to your healthcare provider about your symptoms, or seek out a local addiction treatment center for guidance.
If you’re unsure what options are available in your area, check out SAMHSA’s online treatment locator to find treatment centers or providers nearby.
If you or someone you know is struggling or in crisis, call 988 or text 988. Call 911 for a life-threatening emergency.
FAQs About K2 Statistics
Who Makes K2 Spice?
K2 and Spice are product names, not one standardized recipe or one manufacturer. The DEA’s 2020 fact sheet described synthetic cannabinoid chemicals manufactured largely in Asia and applied to plant material by distributors, without consistent quality or concentration controls. Some products are sold as liquids for vaping.[10]
What Are the Main Ingredients of K2 Spice?
K2 products contain lab-made synthetic cannabinoids, often sprayed onto dried plant material or mixed into liquids. These chemicals act on some of the same brain-cell receiving sites as THC, the main mind-altering ingredient in cannabis, but their effects can be different and unpredictable. Contents and strength can vary even between packages carrying the same brand.[1]
Some products have been linked to dangerous contaminants. A 2018 Illinois outbreak involved brodifacoum, a chemical used in rat and mouse poisons. This does not mean every K2 product contains that chemical.[4]
How Many People Die from Synthetic Marijuana Every Year?
A local outbreak or a poison-center report cannot tell you how many people die nationally from K2 each year. For example, CDC reported four deaths among 155 Illinois cases in a 2018 outbreak linked to brodifacoum contamination. That figure describes that outbreak through April 25, 2018, not an annual U.S. death total.[4]
What Health Risks Are Associated with Smoking K2 Spice?
Serious reported effects include chest pain, vomiting, seizures, kidney injury, heart problems, and psychosis, which can involve losing touch with reality. These are possible harms, not a ranking of how often each occurs.[10][1]
Call 911 if someone collapses, has a seizure, has trouble breathing, or cannot be awakened. For other suspected poisoning symptoms, contact Poison Control at 1-800-222-1222.[7]
What Age Group Is K2 Spice Most Commonly Associated With?
In SAMHSA’s 2022 National Survey on Drug Use and Health, estimated past-year synthetic marijuana use was 0.4% among people ages 12–17.[8] For people ages 18–25, the estimate was 0.6%.[8] For people ages 26 and older, it was 0.2%.[8] These are percentages within each age group, not shares of everyone who used K2.[8]
A 2010 University of Florida survey found ever-use among 8% of 852 responding students.[9] It was a single-campus study and does not establish current national use among all college students.[9]
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