No case of overdose from oromucosal or dental use has been reported.
After oral administration of 5-10 ml of clove oil in children below 2 years of age, life threatening conditions were observed. Adverse effects included coma, acidosis, a generalised seizure, disordered blood clotting, and acute liver damage.
Overdose may lead to CNS depression, urinary abnormalities, anion-gap acidosis, deterioration of liver function, coma, seizure and low blood glucose levels. Treatment should be supportive and symptomatic; there have been reports in the literature that N-acetylcysteine has been successfully used as an antidote.