Is lantus and lantus solostar the same?

Yes. Lantus SoloStar is the same insulin glargine medication as Lantus, just in a different delivery format.

- Lantus: usually refers to the insulin glargine in vial form (and sometimes the brand name overall).
- Lantus SoloStar: the prefilled insulin pen (SoloStar) containing the same insulin glargine at 100 units/mL.

Dosing is given in units, and 1 unit in the SoloStar pen equals 1 unit drawn from a vial. If you’re switching between forms, use the same unit dose and check with your healthcare provider to be sure the switch is appropriate for you.