Journal of Dental Research, Vol 60, 182-186, Copyright © 1981 by International & American Associations for Dental Research Online Journals
Alteration of lidocaine- or procaine-induced convulsions by manipulation of brain amines
A. E. Ciarlone
Lidocaine and procaine seizure thresholds were studied. The i.p. median
convulsant dose (CD50) of lidocaine and procaine with saline pre-treatment
was 95 and 240 mg/kg, respectively. Dopamine depletion by pre-treatment
with d1-alpha-methyl-p-tyrosine plus dihydroxyphenylserine resulted in a
significant drop of CD50 to 69 and 175 mg/kg for lidocaine and procaine,
respectively. Serotonin depletion by pre-treatment with
p-chlorophenylalanine resulted in a significant drop of CD50 to 68 mg/kg
for lidocaine, but no significant change for procaine.