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Reconstitution & dose calculator
Enter what you know. Dosei works out the rest — the exact amount to draw on the syringe, the concentration, and how many doses a vial holds.
Your numbers
Type in any field. Dosei automatically calculates the one you leave alone — clear a field to solve for it instead.
ml
Syringe scale
Draw to
10
units
or 0.1 ml
Each draw delivers 0.25 mg
Concentration2.5 mg/ml
Vial lasts20 doses
Water to add2 ml
Save presets in the app
Free in the app too — with logging
Dosei is a logging and calculation tool. It does not provide medical advice and is not a substitute for a clinician. Always confirm doses with your prescriber and read the medication's instructions. Reconstitution math depends on you entering the correct vial strength and water volume.