Enter your vial size and bacteriostatic water, then the target dose in milligrams. The calculator returns the concentration and the units to draw on a U-100 syringe.
Reviewed for accuracy · Last reviewed July 7, 2026The example mixes a 10 mg vial with 2 mL of water for 5 mg/mL, where the approved 1.75 mg dose is 0.35 mL, or 35 units on a U-100 insulin syringe. Change any field and the draw updates.
The 1.75 mg figure is the FDA-approved Vyleesi dose for premenopausal women with HSDD, taken as needed. Independently sourced vials are the same molecule but are not tested to the same standard, and the approval does not extend to men or postmenopausal women.
This page is an independent educational reference and is not medical advice. Talk to a doctor before starting any compound.