How to sober up from weed
Time is the only method with evidence. THC clears at a fixed rate. Nothing you eat, drink, or do removes it faster. Smoked or vaped cannabis starts in 1 to 10 minutes, peaks at 10 to 30 minutes, and fades in 2 to 4 hours. Edibles start in 30 to 120 minutes, peak at 1 to 3 hours, and last 4 to 8 hours. High doses last longer.
Timeline by method
- Smoked or vaped: first effects 1 to 10 minutes, peak 10 to 30 minutes, end 2 to 4 hours.
- Edibles and drinks: first effects 30 to 120 minutes, peak 1 to 3 hours, end 4 to 8 hours.
- Tincture under the tongue: first effects 15 to 45 minutes.
What helps
Wait
THC has an elimination half-life of about 25 to 30 hours in heavy users. That number describes blood levels over days, not the high. The high ends when THC leaves the brain receptors, and that takes hours.
Sleep
Sleep passes the time and cuts stimulation. Most people wake with the high gone or lower.
Water and food
Dry mouth is common. Water helps. Eat something plain if you feel lightheaded: toast, crackers, rice. No food speeds THC clearance.
A calm room
Low light, quiet, and a seat reduce anxiety. Anxiety is the most common bad effect of a high dose.
What does not work
- Coffee and energy drinks. Caffeine adds jitter to a high. It does not lower THC.
- Cold showers. They change how you feel for minutes. They do not change blood THC.
- Detox drinks and supplements. No product is approved to clear THC.
- Exercise. Sweat does not carry THC out. Fat stores release it over days.
- Black pepper and lemon. Anecdotal reports only. One small 2011 study tested caryophyllene with THC. The evidence is thin.
- CBD taken after the high starts. Some trials show CBD blunts THC effects when taken before or with it. Support for CBD as a rescue dose is weak.
High-dose edibles
A standard legal serving in the US market is 5 to 10 mg THC. A high dose is 25 mg and up. Effects from a high dose can run 8 hours or more. Do not take more to balance it. Wait.
Driving
Do not drive while high. The CDC reports cannabis use raises crash risk. No roadside number proves impairment, so police use field tests and blood draws. A high that feels mild still slows reaction time.
When to get help
In the US, call Poison Control at 1-800-222-1222 for severe symptoms. Go to an emergency room for chest pain, trouble breathing, or repeated vomiting. Repeated vomiting with abdominal pain, plus hot showers that relieve it, can signal cannabinoid hyperemesis syndrome.