What a therapeutic dose is
A therapeutic dose is the amount of a medication that’s high enough to do what it’s meant to do, without pushing into the range where side effects or risks outweigh the benefit. Pharmacologists picture this as a therapeutic window: a band with too little (no real effect) at the bottom and too much (poorly tolerated) at the top. The therapeutic dose sits inside that band.
For any given person, the window isn’t a single number — it’s a range, and where you land within it depends on how you respond.
Why it matters on a GLP-1
GLP-1 medications are a good illustration of why you can’t just start at the therapeutic dose. The dose that delivers the most appetite and weight or blood-sugar effect also tends to cause the most nausea and gut upset if you get there too quickly. So the standard approach is to climb into the window gradually through titration, rather than jumping to it.
Where you settle becomes your maintenance dose — a therapeutic dose you can actually live with week to week. It’s also the flip side of microdosing: doses deliberately kept below the usual therapeutic range, an off-label choice that trades effect for gentler dosing.
What to keep in mind
Because the therapeutic dose is individual, it’s set with your prescriber rather than copied from someone else’s regimen — the “right” dose is the one that works for you and that you tolerate. The dose calculator and dosage charts show the ranges each medication is approved for, but your clinician guides where you belong within them.