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.
1 Other related drugs include ampicillin, amoxicillin and ticarcillin. 2  Many bacteria develop resistance to penicillin G. 3  Penicillin G is a prescription drug and can only be obtained from a veterinarian or by prescription from a veterinarian.