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Acute toxicity studies of ebrotidine
M T Grau1, A Romero, F Villamayor
1Centro de Investigación Farmacéutica Grupo Ferrer, Barcelona, Spain.
Arzneimittel-Forschung
|April 1, 1997
Summary
Acute toxicity studies of ebrotidine revealed indeterminable oral LD50 values in rats and mice. Intraperitoneal and intravenous routes showed moderate toxicity, with LD50 values ranging from 100 to 366 mg/kg.
Area of Science:
- Pharmacology and Toxicology
- Drug Safety Assessment
Background:
- Ebrotidine (CAS 100981-43-9, FI-3542) is a chemical compound requiring toxicological evaluation.
- Understanding the acute toxicity profile is crucial for assessing potential risks associated with ebrotidine formulations.
Purpose of the Study:
- To determine the acute toxicity of two ebrotidine formulations in rats and mice.
- To establish median lethal dose (LD50) values via oral, intraperitoneal, and intravenous routes.
Main Methods:
- Acute toxicity testing was performed on rats and mice using oral and intraperitoneal administration of a suspension formulation.
- Intravenous and oral administration of an injectable solution formulation was also conducted in mice, with intravenous administration in rats.
Main Results:
- Oral LD50 values for ebrotidine were indeterminable in both rats and mice across all tested formulations.
- Intraperitoneal LD50 values were determined as 316 mg/kg in rats and 366 mg/kg in mice.
- Intravenous LD50 values were 100 mg/kg in rats and 107 mg/kg in mice.
Conclusions:
- Ebrotidine exhibits moderate acute toxicity when administered via intraperitoneal and intravenous routes in rodents.
- The oral route of administration for ebrotidine appears to have very low acute toxicity or is poorly absorbed, as indicated by indeterminable LD50 values.