What To Do When High

Harm Reduction Guide

How to get unhigh

The honest answer: you can't truly speed up cannabis metabolism, but you can feel noticeably more clear-headed within 20-40 minutes. Below are the nine methods that have actual support — from harm-reduction organizations, cannabis nurses, and the few clinical studies that exist — plus what doesn't work.

Open the breathing tool

9 things that actually help

  1. CBD oil. Under-the-tongue CBD often reduces THC intensity within 15-30 minutes. The most reliable single intervention if you have it on hand.
  2. Black pepper. Chew a few peppercorns or sniff coarse-ground pepper. The terpene beta-caryophyllene appears to blunt THC anxiety. Cheap, harmless, anecdotally strong.
  3. Cold shower. Resets the nervous system and lowers a racing heart rate within minutes. A wet washcloth on the back of the neck works in a pinch.
  4. Eat a real meal. Carbs, fats, and protein. Toast with peanut butter is a classic. Eating slows remaining THC absorption and gives the body a grounding task.
  5. Hydrate. Cool water in small sips. Doesn't flush THC out (it's fat-soluble), but improves cognitive clarity and reduces dry-mouth panic.
  6. Sleep. The fastest fast-forward. Lie down in a cool, dim room. Edibles especially fade much faster with sleep.
  7. Fresh air. Step outside, open a window, or take a walk. Mild aerobic activity raises alertness.
  8. 4-7-8 breathing. Inhale 4 seconds, hold 7, exhale 8. Four cycles. Lowers heart rate within a minute via the parasympathetic nervous system.
  9. Time. The only complete cure. Smoking peaks within 30 minutes and fades in 2-4 hours. Edibles peak at 1-3 hours and fade in 6-8.

Myths that don't work

  • Caffeine. Can worsen anxiety and racing heart, not help.
  • More alcohol. Drastically worsens dizziness and nausea.
  • Vitamin C megadoses. No evidence.
  • Sweating it out at the gym. THC is fat-soluble; you can't sweat it out meaningfully.
  • Drinking gallons of water. Won't flush THC, can cause hyponatremia.

When to seek help

  • Chest pain that doesn't pass in 20 minutes
  • Repeated vomiting
  • Fainting or near-fainting
  • Frightening hallucinations
  • Mixed with alcohol, opioids, or other drugs

US: SAMHSA 1-800-662-4357. Poison Control 1-800-222-1222. Canada: Health Link 811.

Related guides