A cannabis high will always pass on its own, but there are several things you can do right now to take the edge off and feel more in control. How long you need to wait depends on how you consumed it: smoking or vaping typically peaks within 30 minutes and fades over 2 to 6 hours, while edibles can take up to 4 hours to peak and last as long as 12 hours. Some residual grogginess can linger up to 24 hours either way.
Nothing will instantly flip a switch and make you sober, but the strategies below can meaningfully reduce anxiety, slow a racing heart, and make the wait far more comfortable.
Sniff or Chew Black Peppercorns
This is one of the most widely reported home remedies, and there’s a biochemical reason it works. Black pepper contains a terpene called beta-caryophyllene, which binds to the same type of receptor in your body that THC interacts with. Beta-caryophyllene activates the CB2 receptor, which plays a role in regulating inflammation and immune function. When it engages that receptor alongside THC, it appears to modulate the overall cannabinoid activity in your system, dialing down the intensity.
You don’t need to eat a handful. Chewing two or three whole peppercorns or simply sniffing freshly cracked pepper can help. The effect is calming rather than dramatic, but many people notice reduced anxiety within minutes.
Try Cold Water on Your Face
If your heart is pounding and you feel panicky, splash cold water on your face or hold a cold, wet cloth over your nose and eyes. This triggers something called the mammalian dive reflex, a built-in survival mechanism that automatically slows your heart rate and redirects blood flow toward your brain and heart. Your nervous system shifts out of its stress response and into a calmer state.
The reflex is strongest around your nose and eyes, so focus the cold water there. A bowl of ice water you can briefly dip your face into works even better than a splash. The heart rate drop is almost immediate, and it can significantly reduce the intensity of a panic response. Avoid this method if you have a known heart condition, since it does actively slow your heart.
Reach for Citrus or Pine Nuts
Lemons, oranges, and other citrus fruits contain limonene, a terpene associated with mood-lifting effects. Smelling a fresh lemon peel or drinking lemon water may help counter the heaviness or anxiety of being too high. Pine nuts and fresh herbs like rosemary contain pinene, a terpene believed to counteract some of the short-term memory impairment that THC causes. Neither will sober you up, but they can soften specific symptoms that make the experience unpleasant.
What About CBD?
CBD can reduce THC-induced anxiety, but the details matter more than most people realize. Research shows that higher doses of CBD tend to dampen THC’s intoxicating effects, while low doses can actually enhance them. In animal studies, a CBD-to-THC ratio of at least 8:1 produced clear antagonistic effects, meaning the CBD actively worked against the high. Ratios of 1:1 to 3:1 were effective at reducing cognitive impairment in primates.
In human studies, oral CBD reduced THC-induced anxiety when given at the same time as THC, but timing is important. Some preclinical evidence suggests that taking CBD 30 minutes or more before THC can actually potentiate the high rather than reduce it. If you’re already high and reaching for a CBD tincture or gummy, take a substantial dose rather than a small one. A few milligrams is unlikely to help and could theoretically make things slightly worse. Doses in the range of 30 to 60 mg showed the most consistent anxiety-reducing effects in early human research.
One important caveat: CBD appears to reduce anxiety and memory impairment from THC but may not significantly reduce the overall feeling of intoxication or impairment in motor skills. You might feel calmer without actually being less impaired.
Why Exercise Can Backfire
A common instinct is to go for a walk or do something physical to “burn off” the high. Light movement and fresh air can help with anxiety, and the distraction alone has value. But intense exercise can actually make things temporarily worse. THC is fat-soluble, meaning your body stores it in fat cells. When you exercise hard enough to burn fat, stored THC gets released back into your bloodstream. One study found that moderate exercise significantly elevated blood THC levels in regular cannabis users immediately after the session, and the spike was more pronounced in people with higher body fat.
A gentle walk around the block is fine and often helpful. A hard run or intense workout is not the move.
The Basics That Actually Help
Beyond the specific interventions above, a few simple things make a real difference. Drink water. Dehydration amplifies the foggy, dizzy feeling, and having something to sip gives you a grounding activity. Eat something simple and familiar. Food won’t absorb THC out of your system, but it stabilizes blood sugar, which can reduce lightheadedness and nausea.
Find a calm, familiar environment. Much of what makes being too high miserable is sensory overload and anxiety feeding on itself. Lie down somewhere comfortable, put on a show or music you know well, and focus on slow breathing. Inhale for four counts, hold for four, exhale for four. This activates your parasympathetic nervous system and directly counteracts the racing-heart, fight-or-flight feeling.
Remind yourself of the timeline. If you smoked or vaped, you’re likely past the peak already or will be within 30 minutes, and the most intense effects will fade over the next few hours. If you ate an edible, the peak may still be building for up to 4 hours after you consumed it, but even at its worst, it will pass. No one has ever died from a cannabis overdose.
When the Situation Is More Serious
Most cannabis overconsumption is deeply uncomfortable but not dangerous. However, certain symptoms go beyond a normal bad high. Persistent seizures, significant confusion or inability to respond to people around you, and vital signs that stay abnormal for an extended period are reasons to seek emergency care. These are rare with regular cannabis but more common with synthetic cannabinoids (products sometimes sold as “spice” or “K2”), which can cause severe agitation, seizures, and dangerously fast heart rates.
If you consumed a product you’re unsure about, or if someone is unresponsive, call for help. Hospital admission for cannabis alone is uncommon, but altered mental status or repeated seizures warrant professional evaluation.