Question 1

How many units is a 1 mg dose of Retatrutide (5mg vial, 2ml diluent)?

Accepted Answer

40 units on a standard U-100 insulin syringe (0.4 ml). Mixing a 5mg vial of Retatrutide with 2ml of bacteriostatic water gives a concentration of 2.5 mg/ml. On a U-100 insulin syringe that means: 1 mg = 40 units · 2 mg = 80 units · 4 mg = 160 units.

Question 2

What is the concentration of 5mg of Retatrutide in 2ml?

Accepted Answer

5mg ÷ 2ml = 2.5 mg/ml.

Question 3

Which syringe do these unit marks refer to?

Accepted Answer

A standard U-100 insulin syringe, where 100 units = 1 ml. On U-50 or U-30 syringes the same volume reads as half or 30% of the U-100 marks. These are mathematical conversions for organizational purposes only — not medical advice.

Dose	Draw volume	U-100 units
1 mg	0.4 ml	40 U
2 mg	0.8 ml	80 U
4 mg	1.6 ml	160 U

Retatrutide 5mg in 2ml — syringe units chart