A 5mg THC edible typically produces effects that last 4 to 6 hours, with some residual feelings stretching to 8 hours in certain people. That’s significantly longer than smoking or vaping, which usually wear off in 1 to 3 hours. The reason comes down to how your body processes THC when you eat it versus inhale it.
Timeline From Start to Finish
Expect to wait 30 minutes to 2 hours before you feel anything. This is the most common window, though some people notice the first effects closer to the 45-minute mark. The full intensity doesn’t arrive right away either. Peak effects typically hit around 3 hours after you eat the edible, which is when THC concentration in your blood is highest.
After peaking, the high gradually tapers over the next 2 to 4 hours. Most people feel essentially back to normal by the 6-hour mark with a 5mg dose, though a mild sense of relaxation or slight grogginess can linger beyond that. At 5mg, you’re in the low-dose range, so the tail end of the experience tends to be gentler than what someone taking 10mg or more would feel.
Why Edibles Last So Much Longer Than Smoking
When you smoke or vape cannabis, THC enters your bloodstream through your lungs and reaches your brain within minutes. It also leaves relatively quickly. Eating cannabis sends THC on a completely different path: through your stomach, into your intestines, and then to your liver before it ever reaches your brain.
Your liver converts THC into a different compound that crosses into the brain more efficiently and produces a more intense, longer-lasting effect. This is why even a modest 5mg edible can feel surprisingly strong compared to a quick puff, and why the experience stretches over so many hours. The slow digestion and liver processing also mean THC enters your bloodstream in a steady trickle rather than all at once, which spreads the experience over a longer window.
Where 5mg Falls on the Dosing Scale
Five milligrams is classified as a low dose and is considered a standard starting point for recreational use. It’s enough to produce noticeable euphoria, pain and anxiety relief, and mild changes in perception and coordination. For someone with no tolerance, 5mg can feel genuinely intoxicating. For a regular user, it might register as a light, functional buzz.
This matters for duration because dose and tolerance directly affect how long you feel the effects. A person who rarely uses cannabis will likely feel a 5mg edible for the full 6 to 8 hours. Someone with a higher tolerance might find the effects fading closer to the 3- or 4-hour mark.
Factors That Shorten or Extend the Experience
Your stomach contents play a significant role. Taking an edible on an empty stomach means cannabinoids absorb faster, so you’ll feel it sooner and the experience may be slightly more intense but shorter. Eating an edible after a meal, especially one containing fats, slows absorption and produces a more gradual, drawn-out experience. Fats help your body absorb THC more effectively, which can actually increase the total amount that reaches your bloodstream.
Body weight, metabolism, and individual liver function also shift the timeline. People with faster metabolisms tend to process THC more quickly and may find the effects wearing off sooner. Your personal biology matters more than most dosing charts suggest, which is why two people can eat the same gummy and have noticeably different experiences in both intensity and length.
How Long THC Stays in Your System Afterward
Feeling sober again and being fully clear of THC are two very different things. After the high wears off, your body is still breaking down and eliminating THC byproducts. Research from Johns Hopkins found that these metabolites have a half-life of roughly 28 to 35 hours, meaning it takes over a day just to clear half of them. With a longer observation window, half-lives stretched to 44 to 60 hours.
For a single 5mg dose in an occasional user, THC metabolites are generally undetectable in urine within a few days. Frequent users accumulate these metabolites in fat tissue, which extends the detection window to weeks. If you’re concerned about drug testing, the psychoactive effects wearing off at 6 hours tells you nothing about whether a test would come back positive the next day.
Practical Tips for Timing
If you’re planning around the experience, budget at least 6 hours from the moment you eat the edible to when you’ll need to be fully sharp. That means a 5mg gummy taken at 7 PM will likely have you feeling normal by midnight or 1 AM, with peak effects somewhere around 10 PM. Don’t plan to drive, handle anything demanding, or take a second dose during that window.
The most common mistake with edibles is redosing too early. Because the onset takes up to 2 hours and the peak doesn’t arrive until hour 3, it’s easy to eat another at the 90-minute mark thinking the first one didn’t work. By hour 3, you’re now dealing with 10mg hitting at once, which is a very different experience. If you’re uncertain whether your edible is working, wait the full 2 hours before making any decisions.