Toxicity studies on lidamidine hydrochloride (WHR-1142A), a novel antidiarrheal agent. 1978

B J Chou, and G N Mir, and W R Brown, and W R Rapp, and J Yelnosky

The acute oral LD50 of 1-(2,6-dimethylphenyl)-3-amidinourea hydrochloride (WHR-1142A, lidamidine hyrochloride) was 260 (208, 328) mg/kg in male mice, 267 (212, 336) mg/kg in male rats and 160 (130, 197) mg/kg in female rats. A daily oral dose of 10 mg/kg for 30 days was well tolerated in the rat and monkey. Histologic changes were reversible and for the most part could be explained on the basis of one or more of the several pharmacologic effects of WHR-1142A. A short-lived hyperglycemic effect was a prominent effect in mice and rats. This effect was seen occasionally in high doses in the monkey, suggesting a species difference.

UI MeSH Term Description Entries
D007928 Lethal Dose 50 The dose amount of poisonous or toxic substance or dose of ionizing radiation required to kill 50% of the tested population. LD50,Dose 50, Lethal
D008253 Macaca mulatta A species of the genus MACACA inhabiting India, China, and other parts of Asia. The species is used extensively in biomedical research and adapts very well to living with humans. Chinese Rhesus Macaques,Macaca mulatta lasiota,Monkey, Rhesus,Rhesus Monkey,Rhesus Macaque,Chinese Rhesus Macaque,Macaca mulatta lasiotas,Macaque, Rhesus,Rhesus Macaque, Chinese,Rhesus Macaques,Rhesus Macaques, Chinese,Rhesus Monkeys
D008297 Male Males
D001835 Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms. Body Weights,Weight, Body,Weights, Body
D005260 Female Females
D000578 Amidines Derivatives of oxoacids RnE(
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000882 Haplorhini A suborder of PRIMATES consisting of six families: CEBIDAE (some New World monkeys), ATELIDAE (some New World monkeys), CERCOPITHECIDAE (Old World monkeys), HYLOBATIDAE (gibbons and siamangs), CALLITRICHINAE (marmosets and tamarins), and HOMINIDAE (humans and great apes). Anthropoidea,Monkeys,Anthropoids,Monkey
D000930 Antidiarrheals Miscellaneous agents found useful in the symptomatic treatment of diarrhea. They have no effect on the agent(s) that cause diarrhea, but merely alleviate the condition. Antidiarrheal,Antidiarrheal Agent,Antidiarrheal Drug,Antiperistaltic,Antiperistaltics,Antidiarrheal Agents,Antidiarrheal Drugs,Antiperistaltic Agents,Antiperistaltic Drugs,Agent, Antidiarrheal,Agents, Antidiarrheal,Agents, Antiperistaltic,Drug, Antidiarrheal,Drugs, Antidiarrheal,Drugs, Antiperistaltic
D013045 Species Specificity The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species. Species Specificities,Specificities, Species,Specificity, Species

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