*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : TU5786000
CHEMICAL NAME           : Premarin
CAS REGISTRY NUMBER     : 12126-59-9
LAST UPDATED            : 199510
DATA ITEMS CITED        : 8
COMPOUND DESCRIPTOR     : Tumorigen
                          Reproductive Effector
                          Human
                          Hormone
                          Natural Product
SYNONYMS/TRADE NAMES :
   * CEE
   * Conjugated equine estrogen
   * Estrogens, conjugates
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 325 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TXAPA9 Toxicology and Applied Pharmacology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1959-  Volume(issue)/page/year:
   18,185,1971
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 1740 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NIIRDN Drugs in Japan (Ethical Drugs).  (Yakugyo Jiho Co., Ltd., Tokyo,
   Japan)  Volume(issue)/page/year: -,178,1990
 
                          ** TUMORIGENIC DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 51 mg/kg/2Y-C
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Skin and Appendages - tumors
   Behavioral - changes in motor activity (specific assay)
REFERENCE :
   TXAPA9 Toxicology and Applied Pharmacology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1959-  Volume(issue)/page/year:
   11,489,1967
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Human - woman
DOSE                    : 3 mg/kg
SEX/DURATION            : female 2-6 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - female fertility index (e.g. # females pregnant
   per # sperm positive females; # females pregnant per # females mated)
REFERENCE :
   CCPTAY Contraception.  (Geron-X, Inc., POB 1108, Los Altos, CA 94022)  V.1-
   1970-  Volume(issue)/page/year: 17,443,1978
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Human - woman
DOSE                    : 25500 ug/kg
SEX/DURATION            : female 49 week(s) pre-mating
TOXIC EFFECTS :
   Reproductive - Fertility - other measures of fertility
REFERENCE :
   ACEDAB Acta Endocrinologica, Supplementum (Copenhagen).  (Periodica,
   Skolegade 12 E, DK-2500 Valby, Denmark)  No.1-    1948-
   Volume(issue)/page/year: 105,7,1966
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 7 mg/kg
SEX/DURATION            : female 15-17 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Effects on Embryo or Fetus - extra-embryonic structures
   (e.g., placenta, umbilical cord)
REFERENCE :
   BBACAQ Biochimica et Biophysica Acta.  (Elsevier Science Pub. B.V., POB 211,
   1000 AE Amsterdam, Netherlands)  V.1-    1947- Volume(issue)/page/year:
   385,257,1975

                              *** REVIEWS ***
 
   IARC Cancer Review:Human Limited Evidence
   IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
   to Man.  (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
   V.1-    1972-  Volume(issue)/page/year: 21,147,1979

   IARC Cancer Review:Animal Inadequate Evidence
   IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
   to Man.  (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
   V.1-    1972-  Volume(issue)/page/year: 21,147,1979

 
                            *** END OF RECORD ***