Evidence-based resource
GLP-1 microdosing: what it means and what the evidence shows
Separating microdosing marketing from medical evidence — with normalized provider costs, pharmacy verification, and honest limits.
GLP-1 microdosing has no standardized clinical definition. It is an umbrella marketing term for using GLP-1 medications like semaglutide and tirzepatide below their labeled maintenance doses. This site separates that marketing language from the actual evidence, normalizes provider costs, verifies pharmacies, and states plainly what remains unknown. Compounded medications are not FDA approved.
The eleven concepts this site never conflates
| Concept | Kind | What it means |
|---|---|---|
| FDA-labeled starter dose | label | The specific low initial dose in an FDA-approved product's prescribing information, used at treatment initiation to improve tolerability before titration. |
| Lower-than-maintenance dose | strategy | Any dose below a product's labeled maintenance dose, whether during titration or deliberately held below maintenance. |
| Reduced maintenance dose | strategy | A maintenance dose intentionally set below the maximum studied/labeled maintenance dose after a response is achieved. |
| Slower titration | strategy | Extending the time spent at each dose step during dose escalation, usually to manage side effects. |
| Less-frequent dosing | strategy | Administering a dose at longer intervals than labeled (e.g., beyond weekly for a weekly product). |
| Tapering / off-ramping | strategy | Gradually reducing dose or frequency when discontinuing, as opposed to abrupt stopping. |
| Provider-defined 'microdose' | commercial | A marketing/program term used by a telehealth provider for a low-dose plan; definitions vary by provider and are not standardized. |
| Compounded individualized dose | compounded | A patient-specific dose prepared by a compounding pharmacy under a prescription; not an FDA-approved product. |
| Oral, sublingual, buccal, ODT, or troche product | compounded | Non-injectable formulations. One approved oral semaglutide exists (Rybelsus); compounded oral/sublingual/ODT products are separate and unproven. |
| Standard compounded injection | compounded | A compounded injectable at a conventional (non-reduced) dose; not FDA approved. |
| FDA-approved branded product | label | A manufactured, FDA-approved GLP-1 (e.g., Wegovy, Ozempic, Zepbound, Mounjaro, Rybelsus) with reviewed manufacturing and labeling. |
What the evidence shows
- Higher labeled doses of semaglutide and tirzepatide produce clinically meaningful weight loss in randomized trials (STEP, SURMOUNT).
- Specific reduced maintenance doses have some trial support (e.g., SURMOUNT-MAINTAIN's 5 mg arm).
- Weight tends to return after stopping, which is why maintenance strategy matters.
What the evidence does not show
- That a deliberately sub-therapeutic 'microdose' produces meaningful weight loss.
- That injectable-trial results transfer to compounded oral, sublingual, or ODT products.
- That any single 'microdose schedule' is safe or effective across people and concentrations.
Explore
- The full microdosing guide — definitions, evidence, risks, costs
- Microdose semaglutide hub and tirzepatide hub
- Cost hub and provider directory
- Safety hub and pharmacy verification
- Research hub and evidence database
Frequently asked questions
Is GLP-1 microdosing FDA approved?
No. There is no FDA-approved 'microdose' of semaglutide or tirzepatide. Approved products have specific labeled doses; compounded low-dose programs are not FDA approved and are not reviewed for safety, effectiveness, or quality before marketing.
Does microdosing work for weight loss?
Unestablished. The weight-loss evidence comes from trials at therapeutic doses, not deliberately sub-therapeutic microdoses. A lower dose may do less; its effect for weight management is not proven.
Why won't this site give me a microdose chart?
Because a universal chart would be unsafe and unsupported: definitions vary, compounded concentrations differ, and the right dose is an individual clinical decision. We explain the concepts and evidence instead of prescribing.
Not medical advice. This page is consumer education, not medical advice, and does not recommend a dose, product, or provider. Compounded medications are not FDA approved. Talk with a licensed clinician about your situation.