How Long Can a Vial of Insulin Be Used After It Is Started

Table 1.  Current Insulin Package Insert Information

Manufacturer	Insulin (brand name)	Discard after	How to store opened vial
Sanofi-Aventis	Glulisine (Apidra)	28 days	Refrigerated or room temperature
Sanofi-Aventis	Glargine (Lantus)	28 days	Refrigerated or room temperature
Novo Nordisk	Detemir (Levemir)	42 days	Refrigerated or room temperature
Novo Nordisk	Aspart (NovoLog)	28 days	Refrigerated or room temperature
Novo Nordisk	NovoLog MIX 70/30	28 days	Refrigerated preferred, room temperature acceptable
Eli Lilly	Lispro protamine/lispro (Humalog 50/50)	28 days	Refrigerated or room temperature
Eli Lilly	lispro (Humalog)	28 days	Refrigerated or room temperature
Eli Lilly	NPH (Humulin N)	Expiration date on vial	Refrigerated preferred, room temperature acceptable
Eli Lilly	Regular (Humulin R)	Expiration date on vial	Refrigerated preferred, room temperature acceptabl