Insulin
Lantus Day Supply Calculator
Generic: insulin glargine · 100 units/mL · 10 mL vial (1,000 units) or 3 mL SoloStar pen (300 units)
Worked example
Inject 30 units subcutaneously at bedtime
- Total units = 1 vial × 1,000 units = 1,000 units
- Daily use = 30 units at bedtime
- Days supply = 1,000 ÷ 30 = 33.3 → round to 33 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.
- 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.
Meet your Alabama training requirement
Days supply is the math you will use at the bench. Alabama Pharm Tech is ALBOP-approved training that walks you through this math step by step, plus everything else you need to finish on time.
- ALBOP-approved training program
- Start today, finish on your schedule
- Pharmacy math practice with worked solutions
- One payment of $199, everything included
Product details
- Brand: Lantus
- Generic: insulin glargine
- Strength: 100 units/mL
- Typical package: 10 mL vial (1,000 units) or 3 mL SoloStar pen (300 units)
- Example NDC: 00088-5020-01
- Calculator tab: Use the insulin section in our tool
Pharmacy tech tips
- Lantus is basal insulin — most patients take one daily dose.
- Pen: 1 SoloStar pen = 300 units (3 mL × 100 units/mL).
- Verify whether the Rx specifies vials or pens before billing.
Frequently asked questions
How do you calculate Lantus day supply?
Multiply packages by units per package, then divide by total daily units. Example: 1 vial (1,000 units) at 30 units/day = 33 days supply.
How many units are in a Lantus pen?
Each Lantus SoloStar pen contains 300 units (3 mL at 100 units/mL).
Related Insulin guides
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