Insulin Glargine (Lantus)
Long-acting basal insulin analog with a relatively flat, peakless pharmacokinetic profile providing ~24h coverage. Acidic solution (pH 4.0) forms microprecipitate at subcutaneous tissue pH (7.4), enabling slow release from depot. Once-daily injection.
Projected serum levels — 30 units (≈ 1.0 mg), once daily
Maintenance schedule: 30 units (≈ 1.0 mg) once daily (subcutaneous).
Loading schedule: 49.6 units on day 1, then 30 units (≈ 1.0 mg) once daily — reaching therapeutic levels sooner.
Modeled steady state after ~2 days: peak ≈ 0.86 mg, trough ≈ 0.55 mg body load. Population-based estimate over 15 days for a reference dose at a 70 kg reference body mass — the interactive app scales curves to your doses, timing, and body mass.
Key facts
- Category
- Hormone
- Route modeled
- Subcutaneous
- Model confidence
- inferred
- Half-life
- 12 h
- Common dose
- 30 units (≈ 1.0 mg)
- Suggested maximum
- 100 units/day
- Reference dose range
- 10–100 units (single dose)
- Suggested cadence
- once daily
Documented interactions
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moderate
Insulin Aspart (NovoLog) + Insulin Glargine (Lantus)
Insulin Aspart (NovoLog) and Insulin Glargine (Lantus) both push the igf1 receptor and insulin receptor in the same direction.
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moderate
Insulin Lispro (Humalog) + Insulin Glargine (Lantus)
Insulin Glargine (Lantus) and Insulin Lispro (Humalog) both push the igf1 receptor and insulin receptor in the same direction.
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moderate
Insulin NPH (Humulin N) + Insulin Glargine (Lantus)
Insulin Glargine (Lantus) and Insulin NPH (Humulin N) both push the igf1 receptor and insulin receptor in the same direction.
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moderate
Insulin Regular (Humulin R) + Insulin Glargine (Lantus)
Insulin Glargine (Lantus) and Insulin Regular (Humulin R) both push the igf1 receptor and insulin receptor in the same direction.
Serum checks 4 modeled interaction pairings for insulin glargine (lantus) across your whole stack — absorption conflicts, enzyme inhibition, and nutrient depletion included.
Research behind this entry
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Basal Insulin and Cardiovascular and Other Outcomes in Dysglycemia (ORIGIN)
Landmark 12,537-patient trial finding that insulin glargine maintained normoglycemia over 6.2 years with neutral cardiovascular effect and no increase in cancer, establishing long-term safety of basal insulin in…
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The Treat-to-Target Trial: Randomized Addition of Glargine or Human NPH Insulin to Oral Therapy of Type 2 Diabetic Patients
Pivotal treat-to-target trial showing insulin glargine achieved equivalent HbA1c reduction to NPH but with significantly less nocturnal hypoglycemia, establishing glargine as preferred basal insulin for type 2 diabetes.
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Less Nocturnal Hypoglycemia and Better Post-Dinner Glucose Control with Bedtime Insulin Glargine Compared with Bedtime NPH Insulin during Insulin Combination Therapy in Type 2 Diabetes
Demonstrated that bedtime glargine reduced nocturnal hypoglycemia by 44% vs NPH while providing better post-dinner glucose control, confirming the clinical advantage of glargine's flat pharmacokinetic profile.
3 published studies referenced in the app, each with a plain-language summary.