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