Most THC capsules sold in legal shops land between 2.5 mg and 10 mg per capsule. If you have never used oral cannabis, start at 2.5 mg. If you smoke or vape now and then, 5 mg is a reasonable landing spot. Daily users often settle between 10 mg and 25 mg. CBD-only capsules follow a different curve, usually 10 mg to 50 mg per capsule, with clinical doses going far higher.
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What follows explains why capsules behave the way they do, how to read a label, and how to move up without a rough night.
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Why capsules hit harder than a joint
Swallowed THC passes through your liver before it reaches your bloodstream. That first pass converts a chunk of it into 11-hydroxy-THC, a metabolite that crosses into the brain more easily than plain THC. The result feels stronger and lasts longer than the same milligram count inhaled. Oral bioavailability sits near 10% to 20%, but what does get through is potent, and your liver gets a vote.
Onset and duration: the timeline that matters
- 15 to 30 minutes: capsule shell dissolves, most people feel nothing yet
- 30 to 90 minutes: first effects, often faint
- 2 to 3 hours: peak
- 4 to 8 hours: gradual decline, longer after a heavy dose
Coated or slow-release capsules can take longer. A fatty meal may delay absorption or increase it. Either way, the two-hour mark is when you decide anything.
A starting dose by experience level
- Never used cannabis: 2.5 mg THC
- Used it a few times, or use it monthly: 2.5 to 5 mg
- Weekly user: 5 to 10 mg
- Daily user: 10 to 25 mg, sometimes more
- CBD only, no THC: 10 to 25 mg to start, 50 mg and up for targeted use
Reading the label
I check three numbers. Milligrams of THC per capsule, milligrams of CBD per capsule, and the count in the package. A bottle marked "300 mg" might hold thirty 10 mg capsules or ten 30 mg capsules. That changes everything about how you use it.
Then look at whether it is full-spectrum, broad-spectrum, or isolate. Full-spectrum keeps minor cannabinoids and terpenes, and some people find the effect feels rounder. Isolate is one molecule. Neither is better, they just behave differently.
CBD capsules are a different math
CBD does not get you high and does not climb the same ladder. Many people begin at 10 to 25 mg once daily and adjust over a week or two. Prescription CBD for severe epilepsy uses doses in the hundreds of milligrams, which tells you the ceiling is high and side effects stay mostly mild: sleepiness, appetite changes, and liver enzyme shifts at high doses.
How to move up safely
Wait at least two hours before adding more. If 5 mg did nothing after two hours, another 5 mg is fine. If it did something and you want more next time, try 7.5 mg, not 15 mg. Steps of 2.5 to 5 mg are plenty.
Keep a note on your phone: dose, time, what you ate, how it felt at hour two and hour four. Three or four sessions of that and you will know your number.
Mistakes I see often
- Redosing at 45 minutes because "nothing is happening"
- Copying a friend's dose. Body weight, liver enzymes, and tolerance all shift the line.
- Taking a capsule on an empty stomach and expecting a fast, predictable ride
- Assuming a 50 mg capsule feels like five times a 10 mg. It can feel like ten times.
Storage and label checks
Keep capsules in the original child-resistant container, away from heat and light. Gelatin caps soften in a hot car. Check the best-by date and toss anything that smells off.
Talk to a pharmacist or clinician if you take prescription medication, especially blood thinners, sedatives, or anything with a grapefruit warning. Cannabis interacts with some of the same liver enzymes. This guide is general information, not medical advice.