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. 2008 Oct;1(8):39–48.

Table 5.

Insulin Preparations

Drug Onset Peak Duration Comments Cost (10-mL vial)
Rapid-acting
Insulin Aspart (NovoLog) 10–20 min 1–3 h 3–5 h Administer within 15 min before or immediately after meals $94.25
Insulin Glulisine (Apidra) 25 min 45–48 min 4–5 h $90.68
Insulin Lispro (Humalog) 15–30 min 0.5–2.5 h 3–6.5 h $89.99
Short-acting
Insulin Regular (Novolin R, Humulin R) 30–60 min 1–5 h 6–10 h Administer 30 min before meals $45.99-$49.99
Intermediate-acting
Insulin NPH (Novolin N, Humulin N) 1–2 h 6–14 h 16–24+ h Cloudy appearance $46.99-$49.99
Long-acting
Insulin Detemir (Levemir) 1.1–2 h 3.2–9.3 h 5.7–24 h (dose-dependent) Don't mix with other insulins $95.30
Insulin Glargine (Lantus) 1.1 h None 24 h $97.73
Premixed
70% Insulin Aspart Protamine/30% Insulin
Aspart (NovoLog Mix 70/30)
10–20 min 1–4 h 24 h Cloudy appearance; administer within 15 min before meals $95.03
75% Insulin Lispro Protamine/25%
Insulin Lispro Protamine (Humalog Mix 75/25)
15–30 min 2 h 22 h $96.89
50% Insulin Lispro Protamine/50%
Insulin Lispro Protamine (Humalog Mix 50/50)
Not available
70% Insulin NPH/30%
Insulin Regular (Humulin 70/30, Novolin 70/30)
30 min 1.5–12 h 24 h Cloudy appearance; administer within 30 min before meals $46.26-$49.99
50% Insulin NPH/50%
Insulin Regular (Humulin 50/50)
30–60 min 1.5–4.5 h 7.5–24 h $49.99

Sources: Lacy CF, Armstrong LL, Goldman MP, Lance LL, eds. Drug Information Handbook. 17th ed. Hudson, OH: Lexi-Comp; 2008. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists; 2008. Cost: www.drugstore.com.