A principle of the method is that in the main study only moderately toxic doses are used, and the administration of doses that are expected to be lethal should be avoided. This Guideline is intended primarily for use with rat. Groups of animals of a single sex (normally females) are dosed in a stepwise procedure using the fixed doses of 5, 50, 300 and 2000 mg/kg (exceptionally 5000 mg/kg). The initial dose level is selected on the basis of a sighting study as the dose expected to produce some signs of toxicity without causing severe toxic effects or mortality. Further groups of animals may be dosed at higher or lower fixed doses, depending on the presence or absence of signs of toxicity or mortality. This procedure continues until the dose causing evident toxicity or death is identified, or when no effects are seen at the highest dose or when deaths occur at the lowest dose. The test substance is administered in a single dose by gavage using a stomach tube or a suitable intubation canula. Animals should be fasted prior to dosing. A total of five animals of one sex will normally be used for each dose level investigated. The results of this study include: measurements (weighing at least weekly) and daily detailed observations, as well as gross necropsy. The method provides information on the hazardous properties and allows the substance to be classified for acute toxicity according to the Globally Harmonised System of classification and labelling of chemicals.

A principle of the method is that in the main study only moderately toxic doses are used, and the administration of doses that are expected to be lethal should be avoided. This Guideline is intended primarily for use with rat. Groups of animals of a ...

Toxicological Survey of African Medicinal Plants provides a detailed overview of toxicological studies relating to traditionally used medicinal plants in Africa, with special emphasis on the methodologies and tools used for data collection and interpretation. The book considers the physical parameters of these plants and their effect upon various areas of the body and human health, including chapters dedicated to genotoxicity, hepatotoxicity, nephrotoxicity, cardiotoxicity, neurotoxicity, and specific organs and systems.Following this discussion of the effects of medicinal plants is a critical review of the guidelines and methods in use for toxicological research as well as the state of toxicology studies in Africa. With up-to-date research provided by a team of experts, Toxicological Survey of African Medicinal Plants is an invaluable resource for researchers and students involved in pharmacology, toxicology, phytochemistry, medicine, pharmacognosy, and pharmaceutical biology. - Offers a critical review of the methods used in toxicological survey of medicinal plants - Provides up-to-date toxicological data on African medicinal plants and families - Serves as a resource tool for students and scientists in the various areas of toxicology

This is a test guideline for testing for Acute Oral Tosxidity using the Acute Toxic Class Method.

This open access book presents recent advances in the pure sciences that are of significance in the quest for alternatives to the use of animals in research and describes a variety of practical applications of the three key guiding principles for the more ethical use of animals in experiments – replacement, reduction, and refinement, collectively known as the 3Rs. Important examples from across the world of implementation of the 3Rs in the testing of cosmetics, chemicals, pesticides, and biologics, including vaccines, are described, with additional information on relevant regulations. The coverage also encompasses emerging approaches to alternative tests and the 3Rs. The book is based on the most informative contributions delivered at the Asian Congress 2016 on Alternatives and Animal Use in the Life Sciences. It will be of value for those working in R&D, for graduate students, and for educators in various fields, including the pharmaceutical and cosmetic sciences, pharmacology, toxicology, and animal welfare. The free, open access distribution of Alternatives to Animal Testing is enabled by the Creative Commons Attribution license in International version 4: CC BY 4.0.