Delta-9 Dosage: Edibles, Vapes and What to Expect
Short answer: For edible delta-9, a common starting dose for adults is 2.5–5 mg, with 10 mg treated as a standard serving in legal cannabis markets and 10–15 mg as a strong dose for most people. Inhaled delta-9 is measured in puffs, not milligrams — one or two puffs is a reasonable start. The edible onset delay of 45–120 minutes is the most important fact to plan around.
Last reviewed: November 4, 2026. Educational information only — not medical advice. Delta-9 is intoxicating. Do not drive after use. Not for use by anyone under 21, or during pregnancy or breastfeeding.
Why edible and inhaled doses are not interchangeable
When you inhale delta-9, it reaches the bloodstream through the lungs in seconds to minutes. When you eat it, it passes through the digestive system and liver, where it is converted into 11-hydroxy-THC — a metabolite that is more potent and longer-lasting than delta-9 itself.
That is why an edible can feel stronger than the same milligram amount vaped, and why it lasts much longer.
| Edible | Inhaled | |
|---|---|---|
| Onset | 45–120 minutes | Seconds to minutes |
| Peak | 2–3 hours | 10–30 minutes |
| Duration | 6–8 hours, sometimes longer | 1–3 hours |
| Primary metabolite | 11-hydroxy-THC (more potent) | Delta-9 THC |
Edible dose ranges
| Range | Delta-9 (edible) | Typical experience |
|---|---|---|
| Micro | 1–2.5 mg | Barely perceptible; used for subtle relief or sleep |
| Low | 2.5–5 mg | Mild relaxation, gentle mood lift |
| Standard | 5–10 mg | Clear intoxicating effect; the common legal-market serving |
| Strong | 10–20 mg | Pronounced effects; not for beginners |
| High | 20 mg+ | Strong impairment; higher risk of anxiety and nausea |
These are general ranges for adults with typical sensitivity. Someone with no experience should treat 2.5 mg as a full starting dose, not a micro-dose.
Inhaled dose
Inhaled delta-9 is not usefully measured in milligrams on a consumer level. Start with one or two small puffs, wait 10–15 minutes, and assess. Because onset is fast, titration is easy — which is why inhaling is generally more forgiving than eating for a first experience.
The two-hour rule
Do not take more for at least two hours after an edible. The most common cause of a bad edible experience is re-dosing at 45 minutes because “nothing is happening yet,” then getting hit by both doses at once.
Set a timer. It sounds excessive until the first time it saves you an evening.
What changes the dose
- Tolerance. Daily users need substantially more than occasional users.
- Body weight and fat percentage. THC is stored in fat and released slowly.
- Liver metabolism. Genetic variation in CYP enzymes changes how quickly 11-hydroxy-THC is produced and cleared.
- Food. A fatty meal can increase edible absorption.
- Product accuracy. Legal-market edibles are usually well tested; unregulated hemp products are not.
- Alcohol. Compounds impairment and increases nausea risk.
What to do if you take too much
- Remember that no one has died from a cannabis overdose, and the peak will pass.
- Move somewhere calm and sit or lie down.
- Drink water. Avoid alcohol and caffeine.
- Have someone stay with you if you feel very disoriented.
- Seek medical help for chest pain, severe vomiting, or if you have a heart condition.
Hemp-derived delta-9 in 2026
Hemp-derived delta-9 edibles are legal only within federal THC limits, and after December 11, 2026 a finished product may contain no more than 0.4 mg total THC per container. That is far below a standard 10 mg edible, which means most of the hemp-derived delta-9 market loses its legal basis. See the 2026 hemp law explained.
Frequently asked questions
How many mg of delta-9 is a normal edible?
10 mg is treated as a standard serving in legal cannabis markets. 2.5–5 mg is a better starting point for anyone without tolerance.
How long do delta-9 edibles take to kick in?
45–120 minutes, sometimes longer on a full stomach. Peak effects are usually at 2–3 hours.
How long does delta-9 last?
Edibles: 6–8 hours, with after-effects possible. Inhaled: 1–3 hours.
Can you overdose on delta-9?
Not fatally in any documented case, but high doses cause severe anxiety, nausea, vomiting and disorientation. Treat it seriously, especially with edibles.
Is 50 mg of delta-9 a lot?
Yes. That is a high dose for most people and is likely to cause significant impairment and anxiety.
Sources
- Published literature on delta-9 THC and 11-hydroxy-THC pharmacokinetics
- State cannabis program dosing guidance (e.g. 10 mg standard serving)
- Public Law 119-37 §781; Public Law 119-103 §2019
Educational information only. Not medical advice.