ARA-290 Dosing Calculator
Pre-filled with the most-reported community reconstitution protocol for ARA-290. See how 1 mL and 2 mL of bacteriostatic water change concentration and syringe-draw volume, then adjust the calculator below for your own vial.
Also available in these vial strengths
Same ARA-290 protocol, recalculated for each vial size — reconstitution volumes, concentrations, and syringe-draw units update automatically.
Quick answer · Community-reported standard
A 5 mg vial of ARA-290 reconstituted with 2 mL of bacteriostatic water yields a concentration of 2.50 mg/mL. At that concentration, a 2 mg dose of ARA-290 equals 80 units on a U-100 insulin syringe (0.800 mL). ARA-290 is typically administered once daily via subcutaneous.
ARA-290 5 mg reconstitution and dosage: 1 mL vs 2 mL bac water
For a 5 mg vial of ARA-290, bacteriostatic water volume is flexible. Less water means higher concentration and smaller injection volumes; more water means lower concentration and easier dose precision. Both options below are valid for a 5 mg vial.
| BAC water added | Concentration | Volume per 2 mg dose | Draw on U-100 syringe (units) |
|---|---|---|---|
| 1 mL | 5.00 mg/mL | 0.400 mL | 40 units |
| 2 mL | 2.50 mg/mL | 0.800 mL | 80 units |
ARA-290 dosage chart: per-injection to weekly total
Common ARA-290 protocol doses centered on the 2 mg baseline (research range 2 mg–4 mg), with weekly totals at once daily frequency.
| Dose level | Per injection | Frequency | Weekly total |
|---|---|---|---|
| Lower | 1 mg | Once daily | 7 mg |
| Baseline | 2 mg | Once daily | 14 mg |
| Higher | 3 mg | Once daily | 21 mg |
| Upper range | 4 mg | Once daily | 28 mg |
Weekly totals assume consistent once daily dosing. Adjust the calculator below for your specific vial size and dose.
Calculate your ARA-290 dose
Alternative ARA-290 protocols
Beyond the default above, ARA-290 is also reported in the following protocols. Use these as starting points and recalculate with the tool above.
Low-Dose Neuroprotective Protocol
Community- Dose
- 1-2 mg
- Frequency
- Once daily
- Duration
- 4-8 weeks
- Route
- Subcutaneous
Some community members report using lower doses for general neuroprotective purposes
Sarcoidosis SFN Pilot Study (IV)
Clinical- Dose
- 2 mg
- Frequency
- Three times weekly
- Duration
- 4 weeks
Intravenous administration in sarcoidosis patients
Sarcoidosis SFN Follow-up (SC)
Clinical- Dose
- 4 mg
- Frequency
- Once daily
- Duration
- 28 days
Subcutaneous self-administration
Type 2 Diabetes Neuropathy (SC)
Clinical- Dose
- 4 mg
- Frequency
- Once daily
- Duration
- 28 days
Subcutaneous self-administration with 28-day observation follow-up
ARA-290 reconstitution & storage
In clinical trials, ARA-290 was provided as a sterile aqueous solution ready for injection. For research use, reconstitute lyophilized peptide with sterile water or bacteriostatic water to desired concentration.
Store lyophilized peptide at -20C. Reconstituted solutions should be stored at 2-8C and used within 14 days. Protect from light.
ARA-290 dosing FAQ
How much bacteriostatic water should I add to a 5 mg vial of ARA-290?
The community standard is 2 mL of bacteriostatic water for a 5 mg ARA-290 vial. That gives a concentration of 2.50 mg/mL, so a 2 mg dose is 80 units on a U-100 insulin syringe. Adding 1 mL instead doubles the concentration to 5.00 mg/mL and halves the draw to 40 units. Less water = smaller injection volume but harder to measure precisely.
How many syringe units is a 2 mg dose of ARA-290?
On a standard U-100 insulin syringe, a 2 mg dose of ARA-290 is 80 units when the 5 mg vial is reconstituted with 2 mL of bacteriostatic water (2.50 mg/mL). If you use 1 mL of bac water instead, draw 40 units (5.00 mg/mL).
What is the standard ARA-290 dose?
Community-reported protocols for ARA-290 typically use 2 mg–4 mg once daily via Subcutaneous. 2 mg is a common starting dose. Based on clinical trial dosing; very few community users report self-administering ARA-290 due to limited availability
How long does a vial of ARA-290 last at 2 mg once daily?
A 5 mg vial of ARA-290 contains roughly 2 doses at 2 mg per injection. At once daily dosing, that is approximately 2 days (about 0 weeks) of supply per vial. Reconstituted ARA-290 should generally be used within 28 days when refrigerated.
Where do you inject ARA-290?
ARA-290 is typically injected subcutaneous. Common sites reported in the literature and by users include: Subcutaneous (abdomen), Subcutaneous (thigh), Intravenous (clinical setting). Rotate sites with each injection to reduce localized irritation.
Can I use sterile water instead of bacteriostatic water for ARA-290?
Bacteriostatic water (containing 0.9% benzyl alcohol as a preservative) is strongly preferred for multi-dose vials like ARA-290 because it inhibits microbial growth and lets a single vial be used over multiple weeks. Sterile water has no preservative and should generally be reserved for single-use preparations only.
More on ARA-290
Medical Disclaimer
This website is for educational and informational purposes only. The information provided is not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare professional before using any peptide or supplement.