Reach Out. We’ll Meet You With Understanding. Our Support is Private and Confidential!

What to Do When Someone Is Greening Out: Immediate Steps

Share

Medically Reviewed By:

medical director

Dr. David Lentz

MD Medical Director

He went to college at Georgia Southern University and graduated with a BS in Biology and a minor in Chemistry. He then attended the Medical College of Georgia, earning his medical degree in 1974. After graduation, he joined the Navy and completed a family practice residency in Jacksonville, Florida, where he became board certified. In 1980, he transitioned out of the Navy and settled in Snellville, Georgia. Over the next 20 years, he dedicated his career to serving individuals struggling with Substance Use Disorder. 

We’re here to help.

Have questions about our drug and alcohol treatment center or programs? Just ask our experts below.

Facebook
Twitter
LinkedIn

Knowing what to do when someone is greening out can help prevent the situation from escalating. Move the person to a quiet, well-ventilated area and have them lie on their side to reduce the risk of choking. Encourage slow, steady breathing and offer small sips of water if they are able to drink. Speak calmly and reassuringly, reminding them the symptoms are temporary. Closely monitor for chest pain, uncontrollable vomiting, confusion, or loss of consciousness, as these signs require immediate emergency care (call 911). Understanding the full response protocol helps you act quickly and confidently.

Know When to Call 911 for a Green Out

call 911 for critical symptoms

Most green out episodes resolve on their own, but certain symptoms demand immediate emergency response. When learning what to do if someone is greening out, recognize these critical warning signs: chest pain, trouble breathing, uncontrollable vomiting, or loss of consciousness. Call 911 immediately if they can’t wake up, experience severe disorientation, or lose touch with reality.

Understanding how to help someone who greened out means monitoring for cardiovascular distress, persistent rapid heart rate, dangerous blood pressure drops, or slurred speech with confusion. You can’t always stop someone from greening out, but you can prevent tragedy. If they’ve mixed cannabis with alcohol or other substances, don’t hesitate. When symptoms persist beyond typical duration or you’re uncertain about their safety, activate emergency services immediately. Be especially vigilant with novice users who are still learning how cannabis affects their body and may be more susceptible to severe reactions. Pay close attention if they display distinct paleness and sweating, as these are common physical indicators of THC overconsumption that may signal a more serious reaction.

Expect Symptoms to Last One to Three Hours

When someone greens out from smoking or vaping cannabis, expect the acute symptoms to subside within one to three hours. Understanding this timeline is essential when determining what to do when someone is greening out.

Consumption Method Typical Duration Peak Symptom Window
Smoked/Vaped 1-3 hours 30-60 minutes
Edibles 4-24 hours 2-4 hours
Mixed with alcohol Extended Unpredictable

When learning how to help someone greening out, communicate this timeframe clearly. Reassure them that discomfort will pass. To help them understand how to calm down from greening out, emphasize that rest accelerates recovery. Monitor hydration levels throughout. While the experience can be distressing, it’s important to remember that greening out is not fatal. During this time, the person may experience distinct paleness and sweating as their body processes the excess cannabinoids. If symptoms persist beyond six hours from inhalation, reassess the situation and consider medical consultation. tips to recover from greening out include engaging in deep breathing exercises and staying in a calm environment. It’s also beneficial to have a friend present for support, as a familiar presence can provide reassurance and distraction.

Recognize the Signs Someone Is Greening Out

physical psychological severe greening out

You’ll notice physical warning signs first, pale skin, profuse sweating, nausea, and visible shaking signal that someone’s body is struggling to process excess THC. Watch for psychological distress indicators like escalating anxiety, paranoid statements, or panic responses that suggest the experience has become overwhelming. Assess severity by noting whether symptoms remain manageable or progress to vomiting, disorientation, or cardiovascular changes like rapid heartbeat, which require closer monitoring. Muscle twitches in the legs are another telltale sign that someone has consumed too much cannabis. Greening out is particularly common among eager beginners who consume too much too quickly while trying to experience the full effects of cannabis.

Physical Warning Signs

Recognizing physical warning signs early allows you to intervene before symptoms escalate. Watch for rapid heartbeat, which presents as palpitations or a pounding sensation in the chest. Nausea vomiting typically follows as THC overwhelms the digestive system. Dizziness lightheadedness causes unsteadiness and may progress to fainting.

Cardiovascular Gastrointestinal Neurological
Racing pulse Stomach sickness Vertigo sensation
Elevated blood pressure Repeated vomiting Impaired balance
Palpitations Nausea waves Disorientation

Additional indicators include excessive sweating, cold sweats, or sudden hot flashes. You’ll notice pale skin, dry mouth, and red eyes. The person may display slurred speech and report heaviness in their limbs. The intensity of these symptoms often depends on dosage and personal tolerance levels. Monitor these symptoms continuously and prepare to act immediately when multiple signs present simultaneously. While these symptoms can be distressing, remember that greening out is a temporary state that will eventually subside on its own.

Psychological Distress Indicators

Someone experiencing a greening out episode will display distinct psychological warning signs alongside physical symptoms. You’ll notice AnxietySymptoms manifesting as extreme agitation, panic attacks, or overwhelming fear. ParanoiaHallucinations may present as paranoid thinking, delusions, or altered perceptions that indicate acute psychological distress.

Watch for these critical indicators:

  • Intense anxiety or panic, rapid onset of fear, restlessness, or inability to calm down
  • Paranoid behavior, unfounded suspicions, feeling watched, or irrational fears
  • MoodInstability, sudden irritability, emotional swings, or unexpected crying
  • Cognitive disruption, confusion, difficulty concentrating, memory gaps, or disorientation

You should assess the severity of these symptoms immediately. If the person experiences persistent hallucinations or severe paranoia, maintain close supervision. Document symptom progression to determine whether professional intervention becomes necessary. Research indicates that psychological distress is high among individuals with substance use disorders, making careful monitoring essential during acute episodes. Be aware that cannabis use can trigger violent behavior in some individuals, requiring you to maintain a safe distance while still providing support.

Severity Assessment Cues

Check cardiovascular status, rapid heartbeat combined with blood pressure fluctuations requires close observation. If symptoms escalate rapidly or the person loses consciousness, seek medical assistance. Document symptom progression to inform any necessary intervention decisions. Watch for physical indicators such as paleness, sweating, and shaking, which are common signs that someone is experiencing a greening out episode. Be aware that greening out is most common for first-time users or those with low tolerance, which can help you assess the severity of the situation.

Move Them Somewhere Quiet and Comfortable

quiet comfortable relocation aids recovery

Moving someone to a quiet, comfortable space ranks among the most effective immediate interventions when they’re greening out. Quiet Environment Benefits include reduced overstimulation, lowered anxiety levels, and faster symptom resolution. You’ll want to act quickly but gently during the RelocatingProcess.

For optimal CozySpaceSelection, follow these guidelines:

  • Choose a secluded room away from bright lights, loud music, and crowded areas
  • Guarantee the space has easy access to water and a place to sit or lie down
  • Remove them from social gatherings immediately to minimize sensory overload
  • Accompany them throughout the Relocation to monitor stability and prevent falls

Once relocated, you can begin grounding techniques and deep breathing exercises more effectively. The calm setting allows reassurance to resonate and supports natural recovery. Having them consume a light snack can help stabilize blood sugar levels, which may further ease their symptoms.

Help Them Lie Down and Get Fresh Air

When someone is greening out, you’ll want to guide them to lie down in a comfortable position to combat dizziness and prevent fainting from low blood pressure. Position them flat on their back with pillows supporting their head, and elevate their feet slightly if they’re not experiencing nausea or vomiting. Open nearby windows or doors immediately to guarantee fresh air circulation, which helps alleviate symptoms and reduces the risk of panic from feeling trapped in stuffy surroundings.

Find A Quiet Space

A quiet, low-stimulation environment serves as the foundation for helping someone recover from greening out. When you locate a secluded area away from crowds, you immediately reduce the sensory overload that intensifies their symptoms. A quiet space reduces overstimulation and promotes relaxation, allowing their nervous system to stabilize naturally.

Move them to this area promptly and implement these protocols:

  • Dim or eliminate bright lights to counter heightened light sensitivity
  • Reduce noise levels to minimize auditory triggers
  • Remove them from crowded spaces where paranoia may escalate
  • Guarantee the temperature remains comfortable to address sweating or chills

Your calm presence in this controlled environment prevents panic attacks and supports natural symptom resolution. Remember that novice users are more prone to experiencing greening out since they’re still learning how cannabis affects their bodies. Most episodes subside within a few hours with proper environmental management.

Ensure Proper Ventilation

Fresh air access becomes critical once you’ve established a quiet space, as oxygen-rich environments support cardiovascular stability while THC-induced blood pressure changes normalize. Move the person to a fresh air environment by opening windows or stepping outside briefly. Outdoor exposure reduces lingering cannabis smell that can intensify psychological distress during the episode.

Once you’ve secured ventilation, guide them into horizontal body positioning. Lying down reduces dizziness and vertigo caused by blood pressure fluctuations while decreasing fall risk when motor control falters. Position them on their side to prevent aspiration if vomiting occurs. Be aware that symptoms may last 30-60 hours depending on THC intake and individual response, so ongoing monitoring remains essential.

Continue to eliminate auditory stressors even in this new location. Background noise removal lowers cortisol levels and prevents sensory overload, allowing the person to focus on controlled breathing as symptoms subside.

Offer Water and Light Snacks to Ease Nausea

Dehydration intensifies greening out symptoms, making water your first line of defense when helping someone through an episode. When figuring out how to help someone who’s greening out, encourage slow, measured sips rather than gulping to prevent additional stomach upset.

Water serves as your primary tool when helping someone green out, encourage slow sips to avoid worsening nausea.

Understanding what to do if someone greens out includes providing appropriate nourishment:

  • Offer bland snacks like crackers or toast to absorb excess stomach acid
  • Provide small banana portions to stabilize dropping blood sugar levels
  • Avoid greasy or heavy foods that worsen abdominal discomfort
  • Monitor intake carefully to prevent overhydration-related nausea

Knowing how to help with greening out means combining hydration with light carbohydrates. This approach dilutes gastric juices while counteracting low blood sugar. If vomiting seems imminent, introduce snacks gradually and maintain a safe resting environment throughout recovery.

Try Black Pepper or CBD to Calm the High

When someone greens out, you can use black pepper or CBD to help reduce the intensity of their high. Black pepper contains beta-caryophyllene, a terpene that activates CB2 receptors and modulates THC’s psychoactive effects without causing additional intoxication. CBD works similarly by counteracting THC at the receptor level, helping to restore calm and mental clarity during an overwhelming cannabis experience.

How Black Pepper Works

Black pepper contains beta-caryophyllene, a terpene that binds selectively to CB2 cannabinoid receptors and produces anxiolytic effects without additional intoxication. When you’re figuring out what to do when someone’s greening out, this compound modulates THC’s psychotropic threshold by altering how cannabinoids interact with the endocannabinoid system.

Beta-caryophyllene works through multiple mechanisms:

  • CB2 receptor activation with binding energy of −7.83 kJ/mol provides the strongest anti-anxiety response
  • TRPV1 ion channel stimulation supports analgesic effects that ease physical discomfort
  • Endocannabinoid reuptake inhibition increases natural anandamide levels, enhancing the body’s calming responses
  • Dose-dependent modulation reduces paranoia and panic symptoms during overconsumption

The compound doesn’t block CB1 receptors directly but functions similarly to CBD in dampening THC intensity while you support the person through their episode.

CBD Counteracts THC Effects

CBD offers a second pharmacological tool for calming an intense THC experience, though the evidence supporting its effectiveness remains inconsistent. CBD acts as a negative allosteric modulator at CB1 receptors, binding to a different site than THC. This interaction lowers peak intensity and delays onset, potentially reducing anxiety through 5-HT1A serotonin receptor activation.

However, you should understand the limitations. A 2023 clinical trial found oral CBD doses of 10 mg and 30 mg didn’t reduce THC-induced anxiety or impairment. High-dose CBD (450 mg) actually increased intoxication by inhibiting THC metabolism.

If you’re helping someone green out, low-to-moderate CBD may provide relief without amplifying effects. Administer it alongside other calming techniques. Don’t rely on CBD as a guaranteed solution, monitor the person’s response and adjust your approach accordingly.

What to Say When Someone Is Greening Out

Staying calm and speaking in a low, steady voice helps ground someone who is greening out. Your composed demeanor prevents their panic from escalating. Reassure them that the symptoms are temporary and will pass.

Use these verbal strategies to provide effective support:

  • Tell them “You’re safe, and I’m staying with you until this passes”
  • Remind them that what they’re experiencing is a known reaction that will subside
  • Offer simple choices to restore their sense of control, such as “Would you like water or fresh air?”
  • Redirect their focus by engaging in gentle conversation about neutral, non-threatening topics

Avoid yelling or expressing alarm. If symptoms intensify or severe psychological distress develops, calmly inform them you’re contacting professional help for additional support.

Avoid These Mistakes When Helping Someone Green Out

When you’re helping someone green out, avoiding common mistakes is just as critical as knowing the right steps to take. Don’t keep them in noisy, crowded spaces or near hazards like stairs or traffic. Remove bright lights and loud music immediately.

Never encourage additional cannabis consumption or allow mixing with alcohol or other substances. This intensifies symptoms and delays recovery. Stop all intake immediately.

Avoid offering only heavy, greasy foods. Stick to light snacks like toast or fruit. Don’t withhold water, dehydration worsens the episode.

Most critically, don’t assume all symptoms resolve without monitoring. Seek emergency help if you observe extreme confusion, chest pain, loss of consciousness, or symptoms that persist despite supportive measures. Individuals with underlying health conditions require immediate professional evaluation during acute distress.

How to Prevent Greening Out Next Time

How effectively you prevent future greening-out episodes depends entirely on implementing structured consumption protocols before your next session.

Essential Prevention Protocols:

  • Start low: Begin with 2-5mg THC for edibles or one small hit when smoking. Conservative dosing protects against untested product variability.
  • Honor the timer: Set a 120-minute wait after edibles, 15 minutes after inhalation. THC stacks invisibly, and impatience causes most incidents.
  • Maintain consistency: Stick to one consumption method per session. Concentrates deliver dramatically higher potency than flower, don’t underestimate the difference.
  • Prepare your body: Eat a balanced meal beforehand, stay hydrated, and choose a low-stress environment.

Track your consumption in a journal documenting amounts, timing, and effects. Never mix cannabis with alcohol. These protocols transform unpredictable experiences into controlled, manageable sessions.

Frequently Asked Questions

Can Greening Out Cause Long-Term Damage to the Brain or Body?

No, greening out doesn’t cause long-term damage to your brain or body. You’re experiencing a temporary reaction to THC overload, and your symptoms will resolve within a few hours, or up to 24 hours with edibles. While you may feel intense disorientation, elevated heart rate, or nausea, these effects are self-limiting. Your body normalizes once the THC clears your system. If symptoms persist beyond a day, you should consult a medical professional.

Is It Safe to Let Someone Sleep While They Are Greening Out?

You can let someone sleep while greening out, but you shouldn’t leave them unmonitored. Position them on their side to prevent choking if they vomit. Check their breathing periodically and guarantee they’re responsive to gentle prompts. Stay nearby to intervene if they experience balance issues when moving or show signs of worsening distress. Once symptoms stabilize and they’re resting comfortably, continuous observation becomes less critical but remains advisable.

How Does Greening Out From Edibles Differ From Smoking Too Much Cannabis?

When you green out from edibles, you’ll experience delayed onset (30-60+ minutes), more intense effects, and a longer duration lasting many hours. If you’ve smoked too much, you’ll feel effects within seconds, but they’ll peak quickly and resolve within 1-3 hours. Edibles bypass your lungs, eliminating respiratory irritation, but the delayed onset increases your risk of accidental overconsumption when you don’t feel immediate effects and take additional doses.

Should You Tell Medical Professionals Exactly What Substances Were Consumed?

Yes, you should always tell medical professionals exactly what substances were consumed, including type, amount, and timing. This information directly guides their treatment decisions and helps them rule out dangerous interactions or complications. Medical staff aren’t there to judge you, they’re focused on providing safe, effective care. Withholding details can delay proper treatment or lead to incorrect interventions. Your honesty protects the person experiencing the emergency and enables the best possible outcome.

Can Someone Build Tolerance to Prevent Greening Out Over Time?

Yes, you can build tolerance to THC over time, which may reduce your risk of greening out. Your CB1 receptors downregulate with regular exposure, typically within two to four weeks of consistent use. Start with low doses (1-2mg THC), increase gradually, and choose balanced THC-CBD strains. However, tolerance isn’t foolproof protection, unexpected potency, mixing substances, or consuming edibles can still trigger episodes regardless of your experience level.

When You’re Ready, We’re Here to Listen

Reaching out can feel like a big step, and you don’t have to take it alone. Fill out our confidential contact form, and let us know how we can support you. Your information stays protected, and our team will respond with compassion, understanding, and guidance you can trust.

We Accept All Major Insurance