Semax · Dosing & maths
Semax dosage: what the research used
This page collects the doses reported in published Semax research and works through the reconstitution maths for common vial sizes. It does not recommend any dose.
Doses used in published research
Russian-registered products are intranasal drops at 0.1% (cognitive indications) and 1% (stroke). Clinical courses lasted days to weeks. There is no UK-approved dose.
Semax reconstitution table
Syringe units (U-100: 100 units = 1 mL) needed for a given amount, by vial size and water volume:
| Vial | Water | Concentration | 200 µg | 300 µg | 600 µg |
|---|---|---|---|---|---|
| 5 mg | 1 mL | 5 mg/mL | 4 units | 6 units | 12 units |
| 5 mg | 2 mL | 2.5 mg/mL | 8 units | 12 units | 24 units |
| 5 mg | 3 mL | 1.667 mg/mL | 12 units | 18 units | 36 units |
| 10 mg | 1 mL | 10 mg/mL | 2 units | 3 units | 6 units |
| 10 mg | 2 mL | 5 mg/mL | 4 units | 6 units | 12 units |
| 10 mg | 3 mL | 3.333 mg/mL | 6 units | 9 units | 18 units |
Semax reconstitution calculator
Vial presets:
Arithmetic aid for laboratory reconstitution. It does not recommend any amount for any use.
Handling and storage
Reconstitute with bacteriostatic water, adding it slowly down the vial wall and swirling rather than shaking — see the reconstitution guide. Once mixed, refrigerate at 2–8 °C; unmixed lyophilised powder keeps longest frozen (storage guide). Converting between units, mL and mg is covered in syringe units explained.
Semax dosing FAQs
How much bacteriostatic water for a 5 mg Semax vial?
There is no fixed amount — the volume sets the concentration. Adding 2 mL to a 5 mg vial gives 2.5 mg/mL; 1 mL gives 5 mg/mL, 2 mL gives 2.5 mg/mL, 3 mL gives 1.667 mg/mL.
How many units is 200 µg of Semax?
At 2.5 mg/mL (5 mg in 2 mL), 200 µg is 0.08 mL, or 8 units on a U-100 syringe. A different water volume changes this — use the calculator above.
Is there an approved Semax dose?
See the published trial doses above. Any human use of a licensed medicine should follow its prescribing information and a prescriber's advice.
What is a Semax dosage chart?
A table showing how many syringe units a given amount takes at a given concentration. The reconstitution table on this page is one, calculated for 5 / 10 mg vials.