The term “overdose” typically evokes thoughts of grave physical crises often linked to substances like alcohol or heroin, which can result in death or long-term health damage if not promptly managed. While marijuana does not typically result in fatal overdoses, overconsumption can lead to a phenomenon known as “greening out.” This condition, similar to an overdose, involves significant discomfort or adverse reactions but does not pose the same fatal risks as overdoses from more potent substances.
What is Greening Out?
Greening out is a lesser-known term compared to the idea of blacking out from excessive alcohol consumption, where individuals may lose memory of events. However, greening out is a notable risk for cannabis users and results from consuming too much cannabis. This overindulgence can trigger intense and unpleasant mental and physical symptoms.
Unlike alcohol, cannabis is a psychoactive substance that affects the central nervous system and alters perception and consciousness. Overconsumption, especially via smoking or edibles, can induce severe adverse reactions in users.
Keep reading to learn how to prevent greening out, recognize its symptoms, and manage this uncomfortable condition effectively.
What Causes a Marijuana Green Out?
A green out from marijuana can occur due to several factors:
- Edibles: Overeating THC-infused edibles or consuming a large amount of raw cannabis can trigger a green out.
- Vaping: Using THC-rich vape cartridges frequently leads to greening out incidents.
- Potent Concentrates: Using strong cannabis concentrates like shatter, wax, oil, and butter, which contain much higher THC levels than traditional buds, can increase the likelihood of greening out. These products may include various cannabis strains such as sativa, indica, and hybrids.
- Combining Substances: Mixing marijuana with alcohol or other drugs—often called crossfading—greatly raises the chance of a green out due to the intensified effects on the body.
What is a Cannabis Green Out?
A cannabis green out occurs when an individual feels uncomfortable or ill after consuming high-THC cannabis products. This overwhelming sensation can lead to what is often termed a “cannabis overdose,” where the user feels excessively high and unable to cope with the intense psychoactive effects of cannabis. This state highlights the importance of understanding one’s limits and the potency of cannabis products being used.
Symptoms Greening Out
Greening out, while not as dangerous as some drug overdoses, can still cause significant distress.
Here are specific symptoms that differentiate a green out from merely feeling extremely high:
- Pale or ashen skin
- Dizziness or lightheadedness
- Sudden immobility
- Confusion or disorientation
- Blurred vision
- Trouble concentrating
- Mild hallucinations
- Intense anxiety or paranoia
- Panic attacks
- Sudden drop in blood sugar
- Rapid heartbeat
- Nausea or vomiting
During a green out, the individual might experience intense anxiety, often fearing that the discomfort or panic will persist indefinitely, which can lead to concerns about needing urgent medical help.

Signs of a Cannabis Green Out
It’s crucial to recognize the symptoms of greening out promptly to provide appropriate support.
Signs of greening out include:
- Pale skin
- Slurred speech
- Dry mouth (cottonmouth)
- Severe paranoia
- Nausea and vomiting
- Poor physical coordination
- Dizziness
- Feeling lightheaded
- Red, bloodshot eyes
- Panic attacks
How Long Does Greening Out Last?
The duration of a green out can vary widely from a few moments to several hours, and in some cases, the discomfort may linger throughout the day. Generally, symptoms resolve within 24 hours. Factors such as the individual’s hydration level, cannabis tolerance, amount consumed, and rate of consumption can affect how long the green out lasts.
What To Do If Greening Out?
If you or someone you know is greening out, here are seven practical tips to manage the situation effectively:
- Stay Calm: Anxiety and elevated heart rates are typical; maintaining calm helps. Encourage deep breathing, play soothing music, and use comforting words.
- Avoid Being Alone: The disorientation and mild hallucinations are easier to handle with company. Ensure the individual is not alone and is in a safe, comfortable setting.
- Monitor Closely: Keep an eye on the person’s behavior and physical condition, ready to provide help or seek medical assistance if necessary.
- Hydrate: Drinking water or fruit juices can alleviate symptoms by stabilizing blood sugar levels that may fluctuate during a green out.
- Rest and Relaxation: Finding a quiet place to lie down can lessen discomfort. Since THC can cause drowsiness, sleeping through the worst of the symptoms might be helpful.
- Eat Appropriately: Consuming light snacks like fruits, bread, or popcorn can aid in metabolizing the THC; avoid high-fat foods which can intensify symptoms.
- Seek Professional Help: If symptoms escalate or become severe, do not hesitate to seek medical help immediately.
What Are the Dangers of Greening Out?
Accidental Injuries
When under the influence of excessive cannabis, known as greening out, individuals might face significant impairment in their coordination and judgment. This impairment heightens the risk of accidental injuries, particularly dangerous during activities like driving or operating machinery.
Mental Health Risks
Repeated episodes of greening out can negatively impact mental health, potentially inducing severe anxiety, feelings of dissociation, or exacerbating underlying mental health conditions such as psychosis or anxiety disorders.
Poisoning Risk
Especially with cannabis edibles, there is a risk of unintentional poisoning. The delayed effects of edibles might encourage consumption in larger quantities, heightening the chance of experiencing severe and possibly dangerous reactions.
Addiction and Abuse Potential
Frequent greening out could lead to an increased tolerance to THC, which may accelerate the pathway to cannabis addiction. The risk of developing a dependency is compounded by various factors, including the method of consumption, individual vulnerabilities, and environmental influences.
While cannabis overdose deaths are uncommon, the potential for severe discomfort, health complications, and the progression towards a cannabis use disorder make it critical to understand and mitigate these risks effectively.
What Are the Long-Term Effects of Greening Out?
- Cognitive Impairment: Consistent overuse of cannabis may result in long-term cognitive issues, such as memory loss, learning impairments, and difficulty with impulse control.
- Reduced IQ: There is evidence to suggest that heavy cannabis use, particularly starting in adolescence, is associated with a decline in IQ.
- Mental Health Decline: Continuous cannabis use can worsen existing mental health issues or lead to the development of new psychological symptoms.
- Respiratory Health: Inhaling cannabis smoke regularly can damage lung tissue and increase the likelihood of respiratory ailments like chronic bronchitis and pneumonia.
- Cardiovascular Health: Regular cannabis users may face an elevated risk of cardiovascular problems, such as heart attacks, especially in those with pre-existing heart conditions.
Understanding these potential risks is crucial as research continues to evolve, highlighting the importance of cautious and informed cannabis use.

Are You Really Greening Out?
While cannabis typically doesn’t lead to fatal overdoses, the unregulated nature of street marijuana means it may be contaminated with harmful substances, posing significant health risks:
- Heavy Metals: Lead or other metals can cause serious health issues.
- Glass Particles: Added to increase weight, can cause internal damage.
- PCP: Can induce severe psychological effects, including delusions and hallucinations.
- Heroin: May cause profound sedation and respiratory depression.
- Embalming Fluid: Severely impairs cognitive functions.
- Detergents: Lead to unpredictable chemical reactions and health issues.
- LSD: Causes intense, often distressing hallucinations.
- Methamphetamine: Induces extreme agitation and hallucinations.
- Fentanyl: Greatly increases the risk of overdose.
- Ketamine: Can lead to dissociation, dehydration, and overheating.
- Cocaine: May trigger severe paranoia and hallucinations.
These contaminants can drastically modify the effects of cannabis, potentially leading to severe health consequences beyond typical greening out symptoms. Awareness and caution are vital when using cannabis to avoid these additional risks.
Begin Your Marijuana Addiction Treatment in Atlanta
If you or a loved one is dealing with marijuana addiction in Atlanta, West Georgia Wellness is prepared to provide specialized treatment tailored to this specific addiction. Our approach is holistic and comprehensive, designed to help individuals reclaim their lives and health.
Our team of experienced professionals collaborates closely with each client to craft a personalized treatment plan that responds to their individual needs and situations. With proper support and treatment, enduring recovery from marijuana addiction is achievable. Start your journey towards a healthier future by contacting our marijuana addiction treatment center in Atlanta today at 470-625-2466 or complete our contact form..