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Why do I still feel high a day after edibles? The pharmacology of extended effects

5 min read

Research indicates that while the peak effects of edible cannabis are felt for several hours, some residual effects can last for up to 24 hours. This extended duration is the primary reason why some people are left wondering, "Why do I still feel high a day after edibles?" The complex answer lies in the unique and prolonged way the human body processes cannabinoids when they are ingested, which is fundamentally different from inhaling them.

Quick Summary

The prolonged high from edibles is a result of THC being metabolized by the liver into a more potent, longer-lasting compound called 11-hydroxy-THC. Individual factors such as metabolism speed, dosage, and body fat also significantly influence the duration and intensity of effects.

Key Points

  • Metabolic Conversion: The liver converts THC from edibles into a more potent and longer-lasting compound called 11-hydroxy-THC, unlike inhaled cannabis.

  • Delayed Onset: Edibles take 30 minutes to 2 hours to kick in, which can lead to overconsumption if a user mistakenly takes a second dose too soon.

  • Longer Duration: The effects of edibles typically last 6-12 hours, with residual grogginess or fogginess extending for up to 24 hours.

  • Influencing Factors: Your metabolism, body fat, dosage, and tolerance level all play significant roles in determining the duration and intensity of the high.

  • Edible Hangover: Feelings of fatigue, brain fog, and mild headaches the next day are common and are caused by lingering THC metabolites in the system.

  • Managing Effects: Staying hydrated, eating nutritious foods, getting rest, and considering CBD can help mitigate and manage prolonged effects.

In This Article

The Liver's Metabolic Magic: Why Edibles Are Different

When you inhale cannabis, THC travels directly to your lungs and quickly enters the bloodstream, leading to a near-immediate onset of effects that are relatively short-lived. The body metabolizes this THC, but the process is different when you eat it. With edibles, the THC must first pass through your digestive system and then be processed by your liver in a process known as 'first-pass metabolism'.

This liver metabolism is the key to understanding the extended high. During this process, the liver converts Delta-9 THC into a different compound called 11-hydroxy-THC. This metabolite is significantly more potent and can cross the blood-brain barrier more efficiently than the original THC. As a result, the effects of edibles are not only delayed, taking anywhere from 30 minutes to two hours to kick in, but are also far more intense and longer-lasting than inhaled cannabis. The unique pharmacological pathway is why the primary psychoactive effects can persist for 6 to 12 hours, with lingering residual effects extending up to 24 hours after consumption.

Factors That Influence the Duration of Your High

Several personal and product-related factors determine how long you might feel the effects of an edible. This high variability is why predicting the duration can be so difficult, leading to unexpected next-day grogginess.

  • Dosage and Potency: A larger dose of THC will naturally produce a stronger and longer-lasting effect. Consumers, particularly those with low tolerance, can easily overconsume due to the delayed onset, intensifying and extending the experience well beyond their expectation. Reputable, lab-tested products offer more consistent dosing, but homemade edibles can have uneven potency.
  • Individual Metabolism: The speed at which your liver metabolizes compounds plays a critical role. Individuals with a faster metabolism may process THC more quickly, leading to a shorter duration, while those with a slower metabolism may feel the effects for a more extended period. Genetic factors can also influence the activity of the liver enzymes responsible for THC conversion.
  • Body Composition: THC is a fat-soluble compound and can be stored in the body's fat cells. This accumulation means that individuals with a higher body fat percentage may experience longer-lasting effects as the THC is slowly released from fat tissue over time.
  • Food Intake: Consuming an edible on a full stomach can delay the onset of effects, as the THC is absorbed more slowly through the digestive system. Conversely, taking an edible on an empty stomach can lead to a faster, more abrupt onset and potentially a longer, more intense high due to rapid absorption.
  • Tolerance and Experience Level: Regular cannabis users typically develop a higher tolerance to THC, which can shorten the duration of the high. Inexperienced users, however, will have a lower tolerance and are more susceptible to feeling the full, prolonged effects of a standard dose.

The Edible "Hangover" and Lingering Effects

While not the same as an alcohol hangover, many people report a groggy or foggy feeling the day after consuming edibles, especially at higher doses. This can be attributed to the residual THC metabolites still circulating in the body. Common symptoms of a so-called "edible hangover" can include:

  • Mental fogginess: Feeling mentally sluggish or experiencing difficulty focusing or concentrating.
  • Fatigue: A lingering sense of tiredness or lethargy, even after a full night's sleep.
  • Dry mouth and dry eyes: These classic cannabis side effects can sometimes persist into the next day.
  • Mild headache: Some users, particularly after consuming high-THC products or being dehydrated, may experience a mild headache the next morning.

Edibles vs. Smoking: A Comparative View

Feature Edibles Smoking/Vaping
Onset Time Delayed, typically 30-120 minutes Almost immediate, within minutes
Metabolic Pathway Digested in the stomach, metabolized by the liver Absorbed directly through the lungs
Potent Metabolite Converted to 11-hydroxy-THC, which is more potent Very little 11-hydroxy-THC is produced in this pathway
Peak Effects Can take 2-4 hours to peak Peaks within 30 minutes
Duration of High Long-lasting, 6-12 hours, with residual effects up to 24 hours Short-lived, typically 1-3 hours
Dosage Control Difficult due to delayed onset; risk of overconsumption Easier to titrate dose in real-time
Health Impact Avoids lung irritation; can cause digestive upset Respiratory risks, including chronic cough and lung damage

Strategies for Mitigating Lingering Effects

If you find yourself feeling the effects of an edible longer than expected, there are several things you can do to manage the experience:

  • Stay Hydrated: Drink plenty of water throughout the experience and into the next day. Hydration can help with dry mouth and headaches and may aid in flushing your system.
  • Eat Light, Nutritious Foods: Consuming a healthy, light breakfast can help stabilize your blood sugar and provide an energy boost, combating fatigue.
  • Rest and Relaxation: Giving your body time to rest is one of the most effective ways to recover. If possible, take it easy and avoid strenuous activity.
  • Gentle Activity: A short, gentle walk in the fresh air can help clear the mind and stimulate blood flow, reducing feelings of sluggishness.
  • Consider CBD: Anecdotal evidence suggests that consuming a CBD-only product may help counteract some of the overwhelming psychoactive effects of THC.
  • Avoid Mixing Substances: Combining edibles with alcohol or other substances can significantly intensify and prolong the effects in unpredictable ways.

Conclusion

The reason you might still feel high a day after consuming edibles is a direct consequence of how your body processes them. Unlike the rapid, shorter-lived effects of inhaled cannabis, edibles follow a digestive path that includes metabolism in the liver. This pathway converts THC into a more potent metabolite, 11-hydroxy-THC, which contributes to the significantly longer and more intense high. The duration is further influenced by individual factors like metabolism, body fat, dosage, and tolerance. By understanding this unique pharmacological process, users can exercise greater patience and consume edibles more responsibly, starting with a low dose and waiting for the full effects before considering more. This approach helps to prevent the overconsumption that often leads to the unexpected and prolonged effects experienced the following day. For a detailed look at the metabolism of cannabinoids, the National Center for Biotechnology Information (NCBI) provides extensive research.

Frequently Asked Questions

The primary psychoactive effects of edibles generally last for 6 to 12 hours. However, residual effects, such as fogginess or lethargy, can linger for up to 24 hours after consumption.

11-hydroxy-THC is a metabolite of THC created when the liver processes edibles. It is more potent than Delta-9 THC and is a primary reason why edibles produce a stronger, longer-lasting high than inhaled cannabis.

Yes, it is possible to experience a 'cannabis hangover' or lingering next-day effects, especially after consuming high doses. Common symptoms include fatigue, brain fog, and mild headaches.

Overconsumption of edibles can lead to intensely uncomfortable and long-lasting effects, including severe anxiety, paranoia, rapid heart rate, confusion, and nausea.

Some anecdotal reports suggest that consuming a CBD-only product may help to modulate or counteract some of the more overwhelming psychoactive effects of THC, potentially easing anxiety and intense feelings.

While there is no way to instantly reverse the effects, staying calm, hydrating with plenty of water, eating a light meal, and resting can help manage and lessen the intensity of the experience. Gentle activity like a walk may also help.

The main difference lies in the metabolic pathway. Smoking leads to a rapid but shorter-lived high by entering the lungs and bloodstream directly. Eating involves liver metabolism, which creates a more potent metabolite (11-hydroxy-THC) resulting in a delayed, but more intense and prolonged high.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.