Compare peptides

Pick up to 3 peptides and see their key facts side by side. Useful for narrowing a search before deciding which page to read in full.

Picked peptides

1 of 3 selected.

Reset

Insulin

Field	Insulin × Last updated 2 months ago
Aliases	Regular human insulin, Humulin R, Novolin R, Insulin lispro, Insulin glargine
Category	Metabolic
Formula	C₂₅₇H₃₈₃N₆₅O₇₇S₆
Molecular weight	5807.6 Da
Half-life	~5 min (IV regular); ~2 hours (SC regular)
Mechanism (summary)	"Insulin" is a drug class, not one marketed compound. There are multiple human insulins and engineered analogs, with formulation-specific kinetics, dosing, and storage rules. The hormone is essential for survival in type 1 diabetes and a core escalation step in type 2 diabetes. Representative regular human insulin labels (Humulin R, Novolin R) anchor the safety and pharmacology summary here.
Dosing notes	Dosing is inherently individualized. Type 1 diabetes typically totals 0.4–1.0 units/kg/day across basal and prandial components. Type 2 diabetes basal often starts at 10 units/day or 0.1–0.2 units/kg/day. Regular human insulin (Humulin R) is dosed 30 minutes before eating; intravenous regular insulin is restricted to monitored clinical settings. Always defer to the specific formulation label.

Storage	Storage is brand- and formulation-specific. Humulin R vials are protected from heat and light, not frozen, and held at room temperature for a total of 31 days once opened. Novolin R allows unopened refrigerated storage until expiration or room-temperature storage up to 42 days; opened vials are kept at room temperature and discarded after 42 days. Other insulins (analogs, mixed, pens) have their own storage rules — always check the specific label.

Storage

Storage is brand- and formulation-specific. Humulin R vials are protected from heat and light, not frozen, and held at room temperature for a total of 31 days once opened. Novolin R allows unopened refrigerated storage until expiration or room-temperature storage up to 42 days; opened vials are kept at room temperature and discarded after 42 days. Other insulins (analogs, mixed, pens) have their own storage rules — always check the specific label.