Buy the kit before the night you need it, not after. A green out is a short overdose of THC: nausea, dizziness, sweating, a racing heart, and a wave of anxiety that builds within the first hour or two. The supplies that help most are ordinary and inexpensive, and they fit in a shoebox. Put a high-CBD oral product, an oral rehydration drink, a fast carbohydrate, whole black peppercorns, and a small card for recording what was taken and when into one box. Store it where you can find it in the dark. If you buy only one item, buy the CBD: it is the piece most people reach for first, and the piece most often bought badly. The rest of this guide covers how to choose each item on the list and which product claims to skip.
What Causes a Green Out? THC Overload and Risk Factors
The short answer: what belongs in a green-out kit
- A CBD-forward oral product with the milligram dose printed on the label, not hidden in a proprietary blend.
- An oral rehydration solution with both sodium and glucose, not a sports drink alone.
- A fast carbohydrate in a portion you can finish in a few minutes.
- Whole black peppercorns, a small bag, for chewing if anxiety spikes.
- A note card and pen to record product, dose, and time.
- A printed list of who to call, including the Poison Control line at 1-800-222-1222.
What to look for when you buy
CBD rescue products
Look for a stated milligram amount per serving and per bottle, a third-party test result you can request, and a format you can take while nauseated. Sublingual tincture and small capsules both work. A broad-spectrum product removes the THC question entirely, which matters if the goal is to calm a THC reaction rather than add to it. Skip anything labeled only as hemp extract with a total milligram figure and no per-serving breakdown.
cannabis overdose symptoms and treatment
Hydration
Choose a product with sodium listed in milligrams and some glucose or dextrose. Plain water helps but does not replace electrolytes lost through sweating and vomiting. Powders and tablets are easier to store than bottles, and a mild flavor is easier to keep down than a strong one.
green out vs panic attack cannabis
Carbohydrate
Low blood sugar makes dizziness and shakiness worse. Keep something simple and shelf-stable, such as crackers, a granola bar, or glucose tablets, and pick a portion small enough that a nauseated person can finish it.
Peppercorns and sensory tools
Chewing one or two whole black peppercorns is a long-standing folk remedy, and the evidence for it is anecdotal rather than clinical. It is harmless, cheap, and gives a person something concrete to do, which has value on its own. A cool cloth and a quiet, dim room belong in the same category.
Parameter bands that matter
- CBD to THC ratio: rescue products in the 10:1 to 20:1 range are the common choice when some THC is present. Broad-spectrum or isolate suits anyone who wants none.
- CBD serving: 15 to 25 mg is a reasonable starting serving for most adults. Some users report needing 50 mg or more. Start low, and do not stack servings every ten minutes.
- Sodium per serving of rehydration drink: roughly 200 to 500 mg, with glucose present.
- Fast carbohydrate: about 15 to 20 g per portion.
- Peppercorns: one or two whole corns, chewed and held in the mouth for 30 to 60 seconds.
- Time before judging the situation: allow at least 4 hours before deciding anything has gone wrong, and up to 8 hours after an edible. THC from edibles peaks later and clears slower than inhaled THC.
Pitfalls to avoid
- Adding more cannabis to "level out." It does not work, and it extends the episode.
- Alcohol and high-dose caffeine, both of which raise heart rate and worsen anxiety.
- Hot showers for someone who feels faint. Sit down and cool off instead.
- Inducing vomiting. Poison centers advise against it for cannabis exposure.
- Treating CBD as a guaranteed antidote. Evidence that it blunts THC effects is limited, and it does not clear THC from the body.
- Buying sugary drinks marketed as rescue tonics with no stated CBD content.
- Leaving a person alone while they are vomiting or drifting in and out of responsiveness.
FAQ
How long does a green out last?
Inhaled cannabis effects usually peak within 30 to 90 minutes and settle over 2 to 4 hours. Edibles can run 6 to 8 hours or longer, and a residual fog the next morning is common.
Does CBD stop a high?
Not reliably. Some users report less anxiety and a softer edge. CBD does not remove THC from the system, so treat it as comfort care.
Should I make myself throw up?
No. Poison control guidance for cannabis exposure does not support induced vomiting, and it risks aspiration.
When do I call for help?
Call 911 for chest pain, trouble breathing, a seizure, or unresponsiveness. Call Poison Control at 1-800-222-1222 for dosing questions and for guidance on a bad reaction. Repeated vomiting that will not stop also needs medical attention.
Can I just sleep it off?
If the person is breathing normally and can hold a conversation, rest in a cool room with water nearby is reasonable. Check on them every 30 minutes, and do not let someone who is vomiting sleep face down.
Do I need a prescription for any of this?
No. Every item on the list is a general retail purchase in states with legal cannabis, and the kit is worth assembling even if you only use edibles a few times a year.