*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : DD8968000
CHEMICAL NAME : Benzimidazole,
1-(p-fluorobenzyl)-2-((1-(2-(p-methoxyphenyl)ethyl)pi
perid-4-yl)amino)-
CAS REGISTRY NUMBER : 68844-77-9
BEILSTEIN REFERENCE NO. : 4830190
LAST UPDATED : 199703
DATA ITEMS CITED : 14
MOLECULAR FORMULA : C28-H31-F-N4-O
MOLECULAR WEIGHT : 458.63
WISWESSER LINE NOTATION : T56 BN DNJ B1R DF& CM- DT6NTJ A2R DO1
COMPOUND DESCRIPTOR : Drug
Reproductive Effector
Human
SYNONYMS/TRADE NAMES :
* Astemizol
* Astemizole
* 1-(p-Fluorobenzyl)-2-((1-(2-(p-methoxyphenyl)ethyl)piperid-4-yl)amino)be
nzimidazole
* Hismanal
* R 42512
*** HEALTH HAZARD DATA ***
** ACUTE TOXICITY DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Human - woman
DOSE/DURATION : 5400 ug/kg
TOXIC EFFECTS :
Behavioral - general anesthetic
Cardiac - EKG changes not diagnostic of specified effects
Cardiac - pulse rate increase, without fall in BP
REFERENCE :
PECAE5 Pediatric Emergency Care. (Williams & Wilkins, 428 E. Preston St.,
Baltimore, MD 21202) V.1- 1985- Volume(issue)/page/year: 9,23,1993
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Human - woman
DOSE/DURATION : 4 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity)
REFERENCE :
HUTODJ Human Toxicology. (Macmillan Press Ltd., Houndmills, Basingstoke,
Hants., RG 21 2XS, UK) V.1- 1981- Volume(issue)/page/year: 5,43,1986
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Human - woman
DOSE/DURATION : 4 mg/kg
TOXIC EFFECTS :
Behavioral - coma
Cardiac - arrhythmias (including changes in conduction)
Gastrointestinal - nausea or vomiting
REFERENCE :
BMJOAE British Medical Journal. (British Medical Assoc., BMA House,
Tavistock Sq., London WC1H 9JR, UK) V.1- 1857- Volume(issue)/page/year:
292,660,1986
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Human - woman
DOSE/DURATION : 4 mg/kg
TOXIC EFFECTS :
Cardiac - change in rate
REFERENCE :
JTCTDW Journal of Toxicology, Clinical Toxicology. (Marcel Dekker, 270
Madison Ave., New York, NY 10016) V.19- 1982- Volume(issue)/page/year:
31,121,1993
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : >2560 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans
Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4-
1898- Volume(issue)/page/year: 251,39,1981
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 355 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag,
Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951-
Volume(issue)/page/year: 33,381,1983
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 28200 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag,
Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951-
Volume(issue)/page/year: 33,381,1983
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 2560 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans
Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4-
1898- Volume(issue)/page/year: 251,39,1981
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 1928 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho
Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970-
Volume(issue)/page/year: 26,239,1995
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 35 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho
Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970-
Volume(issue)/page/year: 26,239,1995
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : >320 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans
Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4-
1898- Volume(issue)/page/year: 251,39,1981
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : 21800 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag,
Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951-
Volume(issue)/page/year: 33,381,1983
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - guinea pig
DOSE/DURATION : 933 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans
Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4-
1898- Volume(issue)/page/year: 251,39,1981
** REPRODUCTIVE DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE : 220 mg/kg
SEX/DURATION : female 1-22 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight
gain)
Reproductive - Effects on Newborn - behavioral
Reproductive - Effects on Newborn - physical
REFERENCE :
CBPCEE Comparative Biochemistry and Physiology, C: Pharmacology, Toxicology
and Endocrinology. (Elsevier Science, 660 White Plains Rd., Tarrytown, NY
10591) V.74- 1983- Volume(issue)/page/year: 114,123,1996
*** END OF RECORD ***