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Workshop Wing
Form-by-form onset, peak and duration ranges from Health Canada — and a tolerance-break planner using the receptor recovery timeline from the PET imaging literature. Neither gives medical advice.
Pick a form and we'll show you the onset, peak and duration ranges Health Canada publishes for it. The point of the widget is to keep you from re-dosing before the form has actually landed.
Swallowed cannabis. Federally capped at 10 mg THC per package.
Start here. Health Canada starts the recommendation at 2.5 mg THC for a first edible. Wait the full peak time before re-dosing.
Heads up. Most bad cannabis experiences in Canada are people redosing edibles before the first one peaked. Set a 2-hour timer.
Ranges are starting points only. Tolerance, body composition, food intake, the cannabinoid profile and the specific product all shift these numbers. Not medical advice — for medical use, talk to a Canadian-registered health-care practitioner.
Pick a start date and we'll plot the receptor-recovery milestones from the imaging literature. Saves you the calendar math; doesn't promise anything else.
Day 2 · Sat, May 23, 2026
First reset
CB1 receptor availability begins trending upward (PET imaging).
Day 7 · Thu, May 28, 2026
Felt reset
Most users report a clearly noticeable difference in the felt high once they resume.
Day 21 · Thu, Jun 11, 2026
Most of the way back
CB1 availability is well on its way to a non-user baseline.
Day 28 · Thu, Jun 18, 2026
Full reset
Receptor availability indistinguishable from non-users in the seminal study (D'Souza et al., 2016).
Imaging milestones are population averages from chronic users in the cited PET study. Felt effects vary by individual; some users notice a strong reset earlier, some later. Daily users who pair cannabis with sleep, anxiety, or chronic pain management should consider talking to a clinician before a long break.
Not medical advice. These calculators translate publicly-stated Health Canada onset numbers and published PET-imaging receptor recovery data into a usable estimate. They are not medical instruments and they do not recommend a specific dose for you.