TD 50 provides a standardized quantitative measure that can be used for comparisons and analyses of many issues in carcinogenesis. The range of TD 50 values across chemicals that are rodent carcinogens is more than 100 million-fold. More than half the chemicals tested are positive in at least one experiment.A plot of all results on each experiment in the CPDB for this chemical is presented below.D 50 provides a standardized quantitative measure that can be used for comparisons and analyses of many issues in carcinogenesis. The range of TD 50 values across chemicals that are rodent carcinogens is more than 100 million-fold. More than half the chemicals tested are positive in at least one experiment.
The Most Common Antibiotics for Dogs. Some of the more common antibiotic medications that are prescribed to dogs are: Amoxicillin -- This antibiotic is mainly used to treat skin and tissue infections, as well as being prescribed to tackle respiratory and gastrointestinal infections.
Our understanding of animals helps us both understand why penicillin is dangerous to guinea pigs, and why we would not test penicillin on them to assess human safety. The reasons why guinea pigs differ in their reactions from most other mammalian species are very specific.