Insulin

    Humalog Day Supply Calculator

    Generic: insulin lispro · 100 units/mL · 10 mL vial (1,000 units) or 3 mL KwikPen (300 units)

    Open free days supply calculator

    Worked example

    Inject 8 units before meals three times daily plus 12 units at bedtime

    Dispensed
    2 KwikPens (600 units)
    Daily use
    36 units/day (8+8+8+12)
    17
    days supply
    1. Total units = 2 pens × 300 units = 600 units
    2. Daily use = 8 units × 3 meals + 12 units at bedtime = 36 units/day
    3. Days supply = 600 ÷ 36 = 16.7 → round to 17 days

    Alabama Days Supply Cheat Sheet

    One printable page with the days supply math Alabama pharmacies check at the bench and on every insurance claim.

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    • Tablets, capsules, and tapers using the whole number rounding Alabama pharmacies expect
    • Insulin vials and pens, with units per package worked out for you
    • Inhalers, puffs, eye drops, and mL to drops conversions
    • The same math taught in the ALBOP approved technician training program from Dalton Pharmacy

    The days supply calculator stays free. Built by Tyler Dalton, PharmD.

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    Product details

    • Brand: Humalog
    • Generic: insulin lispro
    • Strength: 100 units/mL
    • Typical package: 10 mL vial (1,000 units) or 3 mL KwikPen (300 units)
    • Example NDC: 00002-7510-01
    • Calculator tab: Use the insulin section in our tool

    Pharmacy tech tips

    • Humalog is rapid-acting — add all meal and correction doses for daily units.
    • Carb-counting patients may vary meal doses; confirm with pharmacist if SIG is unclear.

    Frequently asked questions

    Humalog day supply with multiple daily doses?

    Add every listed dose for the day, then divide total units dispensed by that daily total.

    Related Insulin guides

    Same math, done for you. Enter the quantity and sig and get the day supply in seconds.