Lantus dosage guide: how much to take and when
Choosing the right dose of Lantus (Insulin Glargine) is the most important practical decision after starting therapy. Lantus is supplied as pre-filled pen, vial in 100 IU/mL, and the right dose for a given person depends on the indication, age, comorbidities and tolerance to the active ingredient Insulin Glargine.
Starting dose and titration
According to the prescribing information, most adults begin Lantus at the lowest available strength of 100 IU/mL and titrate up only if symptom control is insufficient and tolerability is good. Higher doses are reserved for selected cases. Older adults, people with renal or hepatic impairment, and those taking interacting medications should usually start at the lowest dose.
When to adjust
Dose adjustment is guided by symptom response and side effect burden, not by arbitrary schedules. Insulin glargine binds the insulin receptor with similar affinity to human insulin, activating intracellular signalling that increases glucose uptake in muscle and adipose tissue, suppresses hepatic g… If side effects are limiting at a given dose, going down a step is usually preferred over stopping abruptly. If the response is incomplete after several weeks, a higher dose can be tried under medical supervision.
Frequently asked questions
What is the standard starting dose of Lantus? ▾
Most adults start Lantus at the lowest strength of 100 IU/mL, with adjustment based on symptom response and tolerance. Older adults and those with reduced kidney or liver function generally start lower. The prescriber decides the exact starting dose for each person.
Can I take a higher dose of Lantus if it isn't working? ▾
Higher doses of Lantus should only be used after consulting the prescriber. Doubling on your own is unsafe, especially with active ingredients in the Diabetes Treatment class. The prescriber can confirm whether titration is appropriate or whether the medication needs to be changed.
More on Lantus
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.