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Dosage guide

Semaglutide dosage: research ranges, units, and cycle

The complete Semaglutide dosing reference. Common research ranges, unit-conversion tables for U-100 syringes at multiple concentrations, cycle protocols, and a built-in calculator.

Research dose
250–2400 mcg
Frequency
1× / day
Cycle
16w on / 0w off

Semaglutide typical research dosing

Across the available literature, Semaglutide is most commonly administered at 2502400 mcg per dose, 1 time(s) per day, via subcutaneous injection. Clinical protocols escalate from 0.25 mg weekly to 2.4 mg weekly over 16 weeks to minimize gastrointestinal side effects.

Semaglutide unit-conversion table

The number of insulin-syringe units you draw depends on how much bacteriostatic water you used to reconstitute the vial. The table below shows units to draw on a U-100 syringe for a 5 mg Semaglutide vial at common reconstitution volumes.

Diluent (mL)Concentration250 mcg1325 mcg2400 mcg
1 mL5000 mcg/mL5.0 units26.5 units48.0 units
2 mL2500 mcg/mL10.0 units53.0 units96.0 units
3 mL1667 mcg/mL15.0 units79.5 units144.0 units
5 mL1000 mcg/mL25.0 units132.5 units240.0 units

Semaglutide cycle length

Most reported Semaglutide protocols run 16 weeks on, then 0 weeks off. Cycles are used in research to study washout, receptor sensitivity, and to re-baseline endogenous signaling before re-introducing the compound.

Semaglutide half-life and timing

Semaglutide has a half-life of approximately 168 hours. This influences dose frequency: shorter half-lives often require multiple doses per day to maintain steady-state levels, while longer half-lives can be dosed less frequently.

Semaglutide dosage calculator

Common research range for Semaglutide: 2502400 mcg, 1× daily, subcutaneous. Cycle: 16 weeks on.

Educational use only. This calculator performs unit math on the values you provide and is not a substitute for medical advice. Verify every calculation independently.

Result

Concentration
2500 mcg / mL
Per syringe unit
25.00 mcg / unit
Draw to this mark
53.0 units (0.53 mL)
Dose, all units
1325 mcg · 1.325 mg
Doses per vial
3.8 doses
Days per vial
3.8 days
Vials needed for 16-week cycle
30 vials

Numbers are computed from your inputs. Verify all calculations independently. Educational use only.

Semaglutide dosage FAQ

What's the standard Semaglutide dose?+

Research protocols commonly use 250–2400 mcg per administration, 1× per day, via subcutaneous injection. Individual study designs vary.

How long is a typical Semaglutide cycle?+

16 weeks on, 0 weeks off is the most commonly reported research cycle.

How do I convert Semaglutide mcg to insulin syringe units?+

Reconstitute the 5 mg vial with 2 mL bacteriostatic water for 2500 mcg/mL. On a U-100 syringe, 1 unit = 25.0 mcg. Use the calculator on this page to compute exactly.

What time of day should I administer Semaglutide?+

Timing varies by protocol. Some researchers split doses to maintain steady levels; others administer post-workout or pre-bed. Consistent timing improves research-quality observations.

What's the difference between mcg and mg for Semaglutide?+

1 mg = 1,000 mcg (micrograms). Most Semaglutide research doses are in mcg because the bioactive amount is small relative to vial size. A 5 mg vial contains 5000 mcg total.