Overall, edibles last for approx 5 hours.
You’ll peak 2 hours after ingesting to 4 hours after ingesting.
You’ll start to feel mostly normal after 5-6 hours after you ingested. Though, with doses above 20mg you may feel high for longer. So if you’re wondering how long an edibles high lasts, there’s your answer.
In summary: Edibles can last for 4-10 hours, with after effects lasting for another 6-12 hours.1
Edibles Duration of Effects
| Phase | Time12 |
|---|---|
| Total | 4 - 10 hours |
| Onset | 30 - 120 minutes |
| Peak | 2 - 5 hours |
| After effects | 6 - 12 hours |
A graph from a 1980 research paper showing how long you’ll stay high for:
In this experiment, participants still felt a little bit high after 6 hours, though not close to peak levels.2
If you think you took too much: Tell a friend to read the “bad trip” guide and help you
Symptoms of a moderate to intense high (doesn’t necessarily mean you took too much):
- Increased (and more noticable) heart rate
- Dry mouth
- Paranoia / anxiety
No-one has ever died from overdosing on marijuana.3
If you have paranoia/anxiety and want to reduce it, try any of the following:
- Watch this video: Alan Watts: The Mind is a Vicious Circle
- Watch this video: Bob Ross, The Joy of Painting (credit to /u/Damnaged and all others on /r/LSD)
- Ask a friend to read this guide to help make you more comfortable.
Remember, the main effect of taking too much is just paranoia. Thousands of people take too much weed each year, they feel really uncomfortable for up to ~12 hours, and then they all feel fine again.
Guide to help someone having a bad trip (including if you’ve eaten too much edible weed).