hrtrelay — harm reduction toolkit
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pick up to 3 routes and a dose to see how blood levels rise and fall from a single dose. the dotted lines mark each route's elimination half-life — the time it takes for levels to drop by half.

simulating...

▸ select routes above and hit compare

what is a half-life?

the elimination half-life is how long it takes for your blood levels to drop by half after peaking. shorter half-lives (like sublingual) mean faster peaks and crashes — more "roller coaster." longer half-lives (like IM injections) give smoother, more stable levels.

⚠ keep in mind

this shows a single dose in isolation. with repeated dosing, levels accumulate and stabilize higher — use the level simulator to see that. also: same mg dose ≠ same blood levels across routes due to different bioavailability.

ready hrtrelay v0.1 ♥