If you’re too high and feeling anxious, paranoid, or overwhelmed, the most important thing to know is that this will pass. No one has ever died from a cannabis overdose. Depending on how you consumed it, the intense part typically lasts between 30 minutes and a few hours, and you will feel normal again. In the meantime, there are concrete steps you can take right now to bring yourself down.
How Long This Will Last
Your timeline depends entirely on whether you smoked or ate cannabis. If you smoked or vaped, THC hits your bloodstream within seconds, peaks around 6 to 10 minutes after your first inhale, and is almost completely processed by your body within 2 to 3 hours. You’re likely already near or past the peak, and things will get easier from here.
Edibles are a different story. THC from food takes 60 to 120 minutes to reach its maximum concentration in your blood, and the psychoactive effects can stay elevated for up to 6 hours. If you ate an edible and you’re feeling overwhelmed, you may still be on the way up. Knowing this isn’t meant to scare you. It’s meant to help you plan: settle in somewhere comfortable and give yourself time. The intensity will plateau and then gradually fade.
Breathe and Ground Yourself
Anxiety from being too high feeds on itself. Your heart races, you notice it, and that makes you more anxious. Breaking this cycle starts with your breathing. Slow, deliberate breaths (in through your nose for 4 counts, out through your mouth for 6) activate the part of your nervous system that counteracts the fight-or-flight response. You don’t need to do this perfectly. Just focus on making your exhale longer than your inhale.
If your thoughts are spiraling, try a sensory grounding exercise. It works by pulling your attention out of your head and into the physical world around you:
- Name 5 things you can see
- Name 4 things you can physically touch
- Name 3 things you can hear
- Name 2 things you can smell
- Name 1 thing you can taste
This works because it forces your brain to process real sensory information instead of looping through anxious thoughts. Go slowly. Actually touch the four things. Actually listen for the three sounds.
Try Cold Water on Your Face
Splashing cold water on your face or holding a cold, wet cloth against your forehead and cheeks triggers something called the dive reflex. This is a built-in response in all mammals: when cold water hits your face while you hold your breath, your vagus nerve sends a signal to your heart that dramatically slows your heart rate. It’s one of the fastest physical tools for calming your body down, and it works whether you’re high or not. An ice pack or a bag of frozen vegetables pressed to your face for 15 to 30 seconds does the same thing.
Eat Something and Drink Water
Cannabis commonly causes dry mouth, and the discomfort can add to your overall sense of unease. That dry feeling isn’t actually dehydration. THC binds to receptors in your salivary glands (the same type of receptors it binds to in your brain) and reduces saliva production. Drinking water helps, but because the issue is localized to your salivary glands rather than a whole-body fluid loss, sipping slowly works better than chugging. Warm herbal tea, fruits with high water content like watermelon or grapes, or water with a pinch of salt can all help more than plain water alone.
Eating a snack is just as important. Food gives your body something to metabolize alongside the THC, and having something in your stomach can help you feel more grounded and less lightheaded. Simple carbohydrates and familiar comfort foods work well. Don’t overthink it. Crackers, toast, fruit, or whatever is easy to grab will do.
Smell or Chew on Black Pepper
This is one of the most widely repeated tips among cannabis users, and there’s a biochemical reason behind it. Black pepper contains a terpene called beta-caryophyllene that interacts with the same receptor system THC does, and many people report that smelling or chewing a few whole peppercorns noticeably reduces anxiety and paranoia. Simply crack a few peppercorns and inhale the scent, or chew on two or three.
The Lemon Connection
Lemons and other citrus fruits contain a compound called limonene that appears to directly counteract THC-related anxiety. A double-blinded study from Johns Hopkins University and the University of Colorado found that when limonene was combined with THC, it significantly reduced anxiety, nervousness, and paranoia compared to THC alone. The strongest calming effects came from higher doses of limonene, but even at lower amounts the compound helped. Squeezing fresh lemon into water, chewing on a lemon rind, or even just smelling cut lemons may take the edge off.
Change Your Environment
If you’re stuck in one spot fixating on how you feel, a change of scenery can interrupt the anxiety loop. Step outside if you can do so safely. Fresh air and a short, slow walk give your senses new input and your body gentle movement, both of which help redirect your focus. If going outside isn’t an option, move to a different room, open a window, or change the lighting. Turn off anything overstimulating: loud music, intense TV shows, or bright screens. Put on something familiar and calming instead.
Being around a trusted friend can help enormously. If you’re alone and feeling scared, call or text someone you trust. Just hearing a familiar voice or having someone remind you that you’re safe and that this is temporary can make a real difference. You don’t need to explain yourself in detail. “I’m too high and I need to talk for a few minutes” is enough.
What Not to Do
Don’t consume more cannabis, even if someone suggests it will “level you out.” Don’t drink alcohol, which can intensify THC’s effects and make dizziness worse. Avoid caffeine, which can increase your heart rate and add to feelings of panic. And don’t try to fight the high or convince yourself something is medically wrong. The physical symptoms you’re experiencing, including a racing heart, dry mouth, and a distorted sense of time, are all normal effects of THC, not signs of a medical emergency.
Cannabis does increase your heart rate and can temporarily raise blood pressure, which is why your chest might feel tight or your heart might feel like it’s pounding. This is uncomfortable but expected.
When It’s More Than Discomfort
The vast majority of “too high” experiences resolve on their own with time and the strategies above. However, if someone cannot be woken up, is having serious trouble breathing, or has no pulse, call 911 immediately. These situations are extremely rare in adults but are more common in children who accidentally consume edibles. If a child has ingested cannabis, seek medical attention right away regardless of symptoms.
For most people, being too high is deeply unpleasant but not dangerous. Remind yourself of the timeline. If you smoked, you’re likely within an hour or two of feeling significantly better. If you ate an edible, plan for a longer ride but know the peak will eventually pass. Get comfortable, use the grounding and breathing techniques, sip water, eat something simple, and let time do the rest.