Dose-Dependent Effects of Lidocaine
| Plasma Lidocaine Concentration (μg/mL) | Effect | | 1-5 | Analgesia | | 5-10 | Circumoral numbness | | Tinnitus | | Skeletal muscle twitching | | Systemic hypotension | | Myocardial depression | | 10-15 | Seizures | | Unconsciousness | | 15-25 | Apnea | | Coma | | >25 | Cardiovascular depression |
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