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Table 1 Mean lidocaine levels with ranges (μg ml−1)

From: Intravenous lidocaine infusion as a component of multimodal analgesia for colorectal surgery—measurement of plasma levels

Time (hours) 60 mg hr−1 120 mg hr−1 All patients
0.5 2.3 (0.6–4.5) 3.3 (1.3–6.6) 2.8
6 3.0 (0.9–4.9) 5.1 (2.9–10.5) 4.2
12 4.2 (0.8–9.4) 5.3 (1.5–12.3) 4.9
All times 3.2 4.6 4.0