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Two medicines, side by side

Insulin aspart vs insulin glargine

Insulin aspart and insulin glargine are both labeled for type 2 diabetes and type 1 diabetes. Drugs@FDA records approvals of insulin aspart since 2017 and of insulin glargine since 2015. Pharmacies paid $6.95 per mL (Insulin aspart 100 unit/mL vial) and $2.90 per mL (Insulin glargine-yfgn u100 pen) (NADAC, October 7, 2026); the strengths differ, so the two prices are not like for like. Insulin glargine's other strengths are brand-only: $5.92 per mL (Rezvoglar 100 unit/mL kwikpen). How each works, in its label's words: Insulin aspart, “Insulins, including insulin aspart, the active ingredient in FIASP, exert their specific action through binding to insulin receptors.”; Insulin glargine, “The primary activity of insulin, including insulin glargine, is regulation of glucose metabolism.”

Check it at the source: the insulin aspart FDA label on DailyMed (effective June 21, 2023); the insulin glargine FDA label on DailyMed (effective June 16, 2026).

Highlights of the insulin aspart record

Insulin aspart (Novolog) · label of June 21, 2023

Used for

From the label: indications

FIASP is indicated to improve glycemic control in adult and pediatric patients with diabetes mellitus. • FIASP is a rapid-acting human insulin analog indicated to improve glycemic control in adult and pediatric patients with diabetes mellitus ( 1 ).

On the market

Earliest approval on file
September 29, 2017
Generic labelers
none listed
Pharmacy cost
$6.95 per mL

Supply and safety

Shortage
No current entry
Recalls
5

Highlights of the insulin glargine record

Insulin glargine (Lantus) · label of June 16, 2026

Used for

From the label: indications

BASAGLAR ® is indicated to improve glycemic control in adults and pediatric patients with type 1 diabetes mellitus and in adults with type 2 diabetes mellitus. BASAGLAR ® is a long-acting human insulin analog indicated to improve glycemic control in adults and pediatric patients with type 1 diabetes mellitus and in adults with type 2 diabetes mellitus. […]

On the market

Earliest approval on file
December 16, 2015
Generic labelers
none listed
Pharmacy cost
$2.90 per mL

Supply and safety

Shortage
A presentation being discontinued
Recalls
2

Source: FDA drug labels via openFDA (Insulin aspart label of June 21, 2023, Insulin glargine label of June 16, 2026); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do insulin aspart and insulin glargine differ on the record?

How each works, in its label's words: Insulin aspart, “Insulins, including insulin aspart, the active ingredient in FIASP, exert their specific action through binding to insulin receptors.”; Insulin glargine, “The primary activity of insulin, including insulin glargine, is regulation of glucose metabolism.”

Both are in FDA's class insulin analogs.

Insulin aspartInsulin glargine
Labeled forType 2 diabetes, Type 1 diabetesType 2 diabetes, Type 1 diabetes
Pharmacologic classInsulin AnalogInsulin Analog
How it works (label)The primary activity of FIASP is the regulation of glucose metabolism. Insulins, including insulin aspart, the active ingredient in FIASP, exert their specific action through binding to insulin receptors.The primary activity of insulin, including insulin glargine, is regulation of glucose metabolism.
Half-life (label)Elimination The apparent terminal half-life after subcutaneous administration of FIASP is about 1.1 hours.n/a
Earliest approval on file (Drugs@FDA)September 29, 2017December 16, 2015
First generic approvednonenone
Generic labelers (NDC)none listednone listed
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$6.95 per mL (Insulin aspart 100 unit/mL vial)$2.90 per mL (Insulin glargine-yfgn u100 pen)
12-month price changeno change-51%
Boxed warningNoNo
Shortage nowNo current entryA presentation being discontinued
Recalls recorded52
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)63,003245,619
DEA schedulenonenone

Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)

What next?

Alternatives to insulin aspart
every medicine labeled for the same conditions