Synapsin Dosing & Reconstitution Calculator

Add 5 mL of bacteriostatic water to a 5 mg vial, injecting slowly down the inside wall. Swirl gently; never shake. This yields a concentration of 1000 µg/mL.

A typical research dose is 300 µg. Consult the ASCEND calculator for your specific vial concentration and draw volume.

A 5 mg vial reconstituted with 5 mL BAC water yields approximately 16 doses at 300 µg each.

With a 5 mg vial reconstituted in 5 mL bacteriostatic water, the concentration is 1000 µg/mL. For a 300 µg dose: Volume = 300 µg ÷ 1000 µg/mL = 0.3 mL. Draw to the 30 line on a 100-unit insulin syringe. You can adjust these values in the ASCEND calculator for any vial size.

A Synapsin dosage calculator converts your vial size and BAC water volume into an exact syringe draw in IU. Enter your vial strength (5 mg), reconstitution volume (5 mL), and target dose to get the precise line to draw on an insulin syringe.

Draw volume (mL) = Dose (µg) divided by Concentration (µg/mL). For a 5 mg vial with 5 mL BAC water: concentration = 1000 µg/mL. For a 300 µg dose, the ASCEND calculator gives the exact IU line on your syringe instantly.