You are getting nauseous, the room is also leaning, and you are sweating yet you are not hot. When this happens after smoking or combining marijuana with a drink, you are likely to be asking yourself how long this mood will be lingering.
The duration of greening out symptoms is usually between a few minutes and a few hours, depending on the amount of marijuana consumed, alcohol consumption, and tolerance. Greening out, also known as cannabis overdose, occurs when an individual consumes more marijuana than he or she can comfortably use, leading to effects such as paleness, sweating, dizziness, and vomiting. Although it is unpleasant, it is not usually thought of as medically dangerous itself.
The latter is important, as the greening out can be an experience that is truly frightening in the middle of it, especially the first time. Being aware of what is normal and what is not can make a difference in your reaction.
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What is Greening Out?
Greening out is often described as a cannabis overdose, happening when someone uses more marijuana than their body can tolerate. It’s more likely to occur when marijuana is mixed with alcohol.
Common symptoms include turning pale, sweating, dizziness or “the spins,” and sometimes vomiting. In more severe cases, a person might also experience a panic attack.
What Does Greening Out Feel Like?
Greening out typically feels like a sudden wave of nausea, dizziness, and physical discomfort that comes on faster than expected. Many people describe it as feeling like the room is spinning or like they might pass out.
Common sensations include:
- A cold, clammy feeling or sudden sweating
- Paleness noticeable to others
- Dizziness or a spinning sensation
- Nausea that may lead to vomiting
- A racing heartbeat or sense of panic
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Greening Out Symptoms to Recognize
Recognizing greening out symptoms early can help you respond quickly and calmly. Symptoms tend to appear together rather than one at a time.
Common Symptom | What It Looks Like |
Paleness | Skin appears noticeably lighter than usual |
Sweating | Cold sweat, even without physical exertion |
Dizziness | “The spins,” difficulty staying steady |
Nausea/vomiting | Stomach discomfort, sometimes throwing up |
Panic | Racing thoughts, fear, or anxiety |
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How Long Does Greening Out Last For?
How long greening out lasts varies significantly from person to person, since everyone responds to marijuana differently. Some symptoms resolve in minutes, while others linger for hours.
Fact: Greening out symptoms can begin within minutes and last several hours.
Factors that influence duration include how much was used, whether alcohol was also involved, individual tolerance, and how the marijuana was consumed.
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How Long Does It Take for Greening Out to Go Away?
Greening out typically starts to ease once the body begins processing the excess THC, though the exact timeline isn’t predictable. Staying calm and resting tends to help symptoms pass more smoothly.
The most helpful approach while waiting it out is to lie down, stay still, and avoid using more marijuana or alcohol until symptoms fully subside.
What Causes Greening Out to Happen?
Greening out happens when someone consumes more marijuana than their body can comfortably process, and it becomes significantly more likely when alcohol is involved.
Mixing alcohol and marijuana increases the likelihood of greening out because alcohol speeds up how quickly the body absorbs THC into the bloodstream, which can make a high feel faster and more intense than expected.
Factors that increase risk include:
- Combining marijuana with alcohol
- Using a higher potency product than usual
- Consuming edibles, which can take longer to feel and lead to overuse
- Lower personal tolerance to marijuana
Expert Advice: Lie down, sip water, and stay calm until symptoms pass naturally.
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How to Stop Greening Out Fast
While greening out can feel alarming, symptoms can usually be managed safely at home with a few simple steps.
- Stay calm and try to distract yourself from uncomfortable feelings
- Lie down until dizziness subsides
- Drink water to stay hydrated
- Eat a light snack to help balance blood sugar
- Avoid using more marijuana or alcohol until you feel better
Most greening-out symptoms aren’t a medical emergency, but persistent vomiting can lead to dehydration that needs medical attention.
Is Greening Out Harmful?
Greening out is generally not considered physically dangerous on its own, though it can be an unpleasant and frightening experience. The bigger danger comes when marijuana is combined with alcohol.
Marijuana can make it more difficult for the body to vomit, which means that if someone drinks too much alcohol while also greening out, they may be at increased risk of alcohol poisoning, since vomiting is the body’s natural way of expelling excess alcohol.
This is exactly why greening out becomes riskier, not because of the marijuana alone, but because of what it can mask when alcohol is also involved.
Concerned about how often greening out is happening? Palm Coast Treatment Solutions is here to help.
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Greening Out vs Alcohol Poisoning
It can be difficult to tell the difference between greening out and alcohol poisoning when both substances are involved, but alcohol poisoning is a true medical emergency.
The National Institute on Alcohol Abuse and Alcoholism identifies signs of alcohol poisoning as including a reduced or absent gag reflex, clammy skin, confusion, low body temperature, slow breathing and heart rate, and difficulty staying conscious.
If someone shows any of these signs, call 911 immediately rather than assuming it’s just greening out.
When Greening Out Signals a Bigger Problem
Occasional greening out from overuse doesn’t necessarily mean addiction, but frequent episodes or a pattern of mixing substances can be a sign worth paying attention to.
Consider reaching out for support if you notice:
- Greening out happening repeatedly
- Regularly combining marijuana with alcohol
- Difficulty controlling how much you use
- Using marijuana or alcohol to cope with stress or emotions
Get Support for Marijuana Use Today
Palm Coast Treatment Solutions understands that marijuana and alcohol use can be easy to normalize, which sometimes makes it harder to notice when use has become a problem. Our clinical team treats substance use and any co-occurring mental health needs together.
Our Palm Coast, Florida facility offers evidence-based care, including dual diagnosis treatment, our addiction treatment program, partial hospitalization, and family therapy for loved ones supporting you through this.
What sets our approach apart:
- Experienced clinicians trained in substance use patterns
- Individualized treatment plans, not generic programs
- Family involvement built directly into recovery
- A calm, supportive environment for real healing
- Flexible outpatient levels of care that fit real life
If marijuana or alcohol use has become harder to manage, you don’t have to sort it out alone. Call Palm Coast Treatment Solutions at (386) 284-4151 or visit our contact page to take the next step.
FAQs
How long does greening out last?
Greening out symptoms usually last from several minutes to a few hours, depending on the amount of THC consumed, the method of use, and individual tolerance. Most people gradually recover with rest, hydration, and time as the body processes the excess THC.
What is greening out?
Greening out is a term used to describe unpleasant symptoms that occur after consuming more cannabis than the body can comfortably tolerate. Although sometimes called a cannabis overdose, it rarely causes life-threatening complications when marijuana is used by itself.
What does greening out feel like?
Greening out often causes sudden dizziness, nausea, sweating, paleness, and a racing heartbeat. Some people also experience anxiety, panic, confusion, or the sensation that the room is spinning, making the experience frightening even though it usually improves with time.
What are common greening out symptoms?
Common greening out symptoms include dizziness, nausea, vomiting, sweating, pale skin, shaking, rapid heart rate, anxiety, and panic attacks. Some people also feel confused, extremely tired, or have difficulty standing until the effects of THC begin wearing off.
How long does it take for greening to go away?
There’s no exact timeline because recovery depends on THC dose, individual tolerance, and the method of use. Most symptoms improve within a few hours as THC levels decline, especially with rest, hydration, and avoiding additional cannabis or alcohol.
How do you stop greening out fast?
There’s no instant cure, but resting in a quiet place, staying hydrated, eating a light snack if tolerated, and practicing slow breathing can help reduce discomfort. Avoid consuming more cannabis or alcohol while waiting for symptoms to gradually improve.
Is greening out harmful?
Greening out is generally not physically dangerous when caused by cannabis alone, although it can feel extremely distressing. The greatest risks come from falls, accidents, dehydration from repeated vomiting, or combining marijuana with alcohol or other substances.
Why is mixing marijuana and alcohol risky?
Alcohol can increase THC absorption, making cannabis effects stronger and less predictable. Together, they can increase dizziness, vomiting, impaired judgment, and the risk of alcohol poisoning, making the combination significantly more dangerous than using either substance alone.
How is greening out different from alcohol poisoning?
Greening out usually causes dizziness, nausea, anxiety, and vomiting but gradually improves with time. Alcohol poisoning is a life-threatening emergency that can cause slow breathing, confusion, seizures, unconsciousness, dangerously low body temperature, and requires immediate emergency medical attention.
When should I call 911 for greening out?
Call 911 immediately if someone becomes difficult to wake, has trouble breathing, experiences seizures, repeatedly vomits without improvement, develops chest pain, or shows signs of alcohol poisoning. Severe or worsening symptoms should always be treated as a medical emergency.
Can edibles cause greening out?
Yes. Edibles commonly cause greening out because they take much longer to produce noticeable effects than smoked cannabis. Many people accidentally consume additional doses before the first one takes effect, leading to unexpectedly intense and prolonged THC exposure.
Where can I get help for marijuana or alcohol use in Florida?
Palm Coast Treatment Solutions provides dual-diagnosis addiction treatment for individuals struggling with marijuana, alcohol, or co-occurring mental health conditions in Palm Coast, Florida. Call (386) 284-4151 to schedule a confidential assessment and learn about personalized treatment options.
References
- Orlando Recovery Center: Greening Out, Mixing Weed and Alcohol
- National Institute on Alcohol Abuse and Alcoholism: Understanding the Dangers of Alcohol Overdose
- National Institute on Drug Abuse: Cannabis (Marijuana)
- CDC: Marijuana and Public Health
- SAMHSA: Marijuana Use and Treatment
- Mayo Clinic: Marijuana Use Disorder
- Cleveland Clinic: Alcohol Poisoning
Medical Disclaimer: This blog is for informational purposes only and is not a substitute for professional medical or mental health advice; please consult a qualified provider or contact Palm Coast Treatment Solutions for personalized guidance. If you suspect alcohol poisoning or a medical emergency, call 911 immediately.
