The reproductive toxicity test divides into sections I, section II, and section III reproductive toxicity test. Part I reproductive toxicity test: also known as general reproductive toxicity test. The drug administers before the animal mating, and the purpose is to evaluate whether the germ cells have any adverse effects on the conception ability, the reproductive system, and the offspring after receiving the drug. Part II Reproductive Toxicity Test: Teratogenic susceptibility period toxicity test. Administration during the organogenesis period aims to reveal the possible embryotoxicity and teratogenicity of the drug. Part Ⅲ Reproductive toxicity test: also known as perinatal toxicity test. During the perinatal period and lactation period, the drug administers to observe the drug's effect on the growth and development of the fetus after birth. https://www.medicilon.com/services/pharma-toxicology/