Comparative Pharmacology
Head-to-head clinical analysis: VIVACAINE versus XYLOCAINE DENTAL.
Peer-Reviewed Evidence
Head-to-head clinical analysis: VIVACAINE versus XYLOCAINE DENTAL.
VIVACAINE vs XYLOCAINE DENTAL
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
VIVACAINE is a local anesthetic that blocks the generation and conduction of nerve impulses by decreasing sodium ion permeability across the neuronal membrane.
Lidocaine is an amide-type local anesthetic that stabilizes the neuronal membrane by inhibiting sodium ion influx, thereby blocking the initiation and conduction of nerve impulses.
5-10 mL of 1% solution (50-100 mg) via submucosal infiltration or nerve block; maximum 500 mg per procedure.
Xylocaine Dental (lidocaine HCl 2% with epinephrine 1:100,000 or 1:50,000): For infiltration/inferior alveolar nerve block, maximum dose 3.4 mg/kg (4.5 mg/kg with epinephrine 1:100,000) not to exceed 300 mg; usual adult dose: 1–5 mL (20–100 mg) administered via oral submucosal injection.
None Documented
None Documented
Terminal elimination half-life: 6–8 hours in healthy adults. In patients with hepatic impairment, half-life may be prolonged up to 12–15 hours; in severe renal impairment (CrCl <30 mL/min), half-life may extend to 10–12 hours.
1.5–2 hours in adults with normal hepatic function. Prolonged to 2–3 hours in patients with hepatic impairment or congestive heart failure; may exceed 5 hours in severe hepatic disease.
Renal excretion of unchanged drug and metabolites accounts for approximately 85–90% of elimination, with about 10–15% excreted in feces via biliary clearance. Less than 2% of the dose is recovered unchanged in urine; the remainder is as glucuronide conjugates and other metabolites.
Renal excretion of unchanged drug and metabolites accounts for >95% of the dose. Approximately 70% is excreted as the metabolite 4-hydroxy-2,6-xylidine; less than 10% is unchanged lidocaine. Biliary/fecal excretion is minimal (<5%).
Category C
Category C
Local Anesthetic
Local Anesthetic