Bivamelagon Dosing Calculator
Bivamelagon (LB54640): first oral MC4R agonist for hypothalamic obesity by Rhythm Pharmaceuticals.
Pre-filled with the most-reported clinical reconstitution protocol for Bivamelagon. 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 Bivamelagon protocol, recalculated for each vial size â reconstitution volumes, concentrations, and syringe-draw units update automatically.
Quick answer · Clinical protocol
A 30 mg vial of Bivamelagon reconstituted with 2 mL of bacteriostatic water yields a concentration of 15.00 mg/mL. At that concentration, a 400 mg dose of Bivamelagon equals 2666.7 units on a U-100 insulin syringe (26.667 mL). Bivamelagon is typically administered once daily.
Bivamelagon 30 mg reconstitution and dosage: 1 mL vs 2 mL bac water
For a 30 mg vial of Bivamelagon, 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 30 mg vial.
| BAC water added | Concentration | Volume per 400 mg dose | Draw on U-100 syringe (units) |
|---|---|---|---|
| 1 mL | 30.00 mg/mL | 13.333 mL | 1333.3 units |
| 2 mL | 15.00 mg/mL | 26.667 mL | 2666.7 units |
Bivamelagon dosage chart: per-injection to weekly total
Common Bivamelagon protocol doses centered on the 400 mg baseline (research range 400 mgâ600 mg), with weekly totals at once daily frequency.
| Dose level | Per injection | Frequency | Weekly total |
|---|---|---|---|
| Lower | 200 mg | Once daily | 1400 mg |
| Baseline | 400 mg | Once daily | 2800 mg |
| Higher | 600 mg | Once daily | 4200 mg |
| Upper range | 800 mg | Once daily | 5600 mg |
Weekly totals assume consistent once daily dosing. Adjust the calculator below for your specific vial size and dose.
Calculate your Bivamelagon dose
Bivamelagon reconstitution & storage
No reconstitution required. Bivamelagon is an oral tablet taken once daily.
Storage conditions not publicly disclosed. As a small molecule oral tablet, room temperature storage is expected.
Bivamelagon dosing FAQ
How much bacteriostatic water should I add to a 30 mg vial of Bivamelagon?
The community standard is 2 mL of bacteriostatic water for a 30 mg Bivamelagon vial. That gives a concentration of 15.00 mg/mL, so a 400 mg dose is 2666.7 units on a U-100 insulin syringe. Adding 1 mL instead doubles the concentration to 30.00 mg/mL and halves the draw to 1333.3 units. Less water = smaller injection volume but harder to measure precisely.
How many syringe units is a 400 mg dose of Bivamelagon?
On a standard U-100 insulin syringe, a 400 mg dose of Bivamelagon is 2666.7 units when the 30 mg vial is reconstituted with 2 mL of bacteriostatic water (15.00 mg/mL). If you use 1 mL of bac water instead, draw 1333.3 units (30.00 mg/mL).
What is the standard Bivamelagon dose?
Clinical protocols for Bivamelagon typically use 400 mgâ600 mg once daily via subcutaneous injection. 400 mg is a common starting dose. The 600 mg dose achieved 9.3% BMI reduction at 14 weeks. The 400 mg dose achieved 7.7% BMI reduction. Hunger scores decreased by more than 2.8 points at both dose levels.
Where do you inject Bivamelagon?
Bivamelagon is typically administered subcutaneously. Common subcutaneous sites are the lower abdomen (at least an inch from the navel), the outer thigh, and the love handles. Rotate sites with each injection to reduce localized irritation and bruising.
Can I use sterile water instead of bacteriostatic water for Bivamelagon?
Bacteriostatic water (containing 0.9% benzyl alcohol as a preservative) is strongly preferred for multi-dose vials like Bivamelagon 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 Bivamelagon
Bivamelagon overview
Mechanism of action, primary uses, and research summary
Bivamelagon dosing protocols
Full clinical and research-based dosing reference
Bivamelagon community protocols
Real-world usage patterns from peptide communities
Bivamelagon side effects
Reported adverse effects and safety considerations
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.