Insulin Glargine SoloStar Pen Supply Duration
A single insulin glargine SoloStar pen injector (100 units/mL, 3 mL) will supply approximately 6-7 days when administering 44 units at bedtime daily.
Calculation Breakdown
- Each SoloStar pen contains 300 total units of insulin glargine (100 units/mL × 3 mL = 300 units) 1
- With a daily dose of 44 units at bedtime, the pen will provide: 300 units ÷ 44 units/day = 6.8 days (approximately 6-7 days) 1
- The SoloStar pen allows dose selection from 1 to 80 units in steps of 1 unit, making the 44-unit dose easily deliverable 1
Practical Dosing Considerations
- This 44-unit daily dose falls within typical maintenance ranges for patients with type 2 diabetes, who generally require approximately ≥1 unit/kg/day due to insulin resistance 2
- For a patient weighing approximately 44-88 kg, this dose represents 0.5-1.0 units/kg/day, which is within standard dosing parameters 2, 3
- When basal insulin exceeds 0.5 units/kg/day and approaches 1.0 units/kg/day, consider adding prandial insulin rather than continuing to escalate basal insulin alone to avoid "overbasalization" 2, 3
Administration Guidelines
- Insulin glargine should be administered at a consistent time each day (in this case, bedtime) to maintain stable blood glucose levels 2
- The SoloStar pen is a single-patient-use prefilled pen that should never be shared with other people, even if the needle has been changed 1
- Always use a new sterile needle for each injection to prevent blocked needles, contamination, and infection 1
Storage and Handling
- Store unopened pens in the refrigerator 1
- Take the pen out of the refrigerator at least 1 hour before injection, as cold insulin is more painful to inject 1
- Do not use the pen after the expiration date printed on the label 1