*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : KF4997000
CHEMICAL NAME : Erythromycin, 6-O-methyl-
CAS REGISTRY NUMBER : 81103-11-9
LAST UPDATED : 199807
DATA ITEMS CITED : 16
MOLECULAR FORMULA : C38-H69-N-O13
MOLECULAR WEIGHT : 748.08
COMPOUND DESCRIPTOR : Drug
Human
SYNONYMS/TRADE NAMES :
* A-56268
* Clarithromycin
* Clathromycin
* 6-O-Methylerythromycin
* 6-O-Methylerythromycin A
* TE-031
*** HEALTH HAZARD DATA ***
** ACUTE TOXICITY DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Human - woman
DOSE/DURATION : 30 mg/kg/3D-I
TOXIC EFFECTS :
Cardiac - pulse rate increase, without fall in BP
Cardiac - change in rate
REFERENCE :
AEMED3 Annals of Emergency Medicine. (American College of Emergency
Physicians, 1125 Executive Circle, Irving, TX 75038)
Volume(issue)/page/year: 30,542,1997
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 1270 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay)
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 22,1433,1988
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 669 mg/kg
TOXIC EFFECTS :
Sense Organs and Special Senses (Eye) - ptosis
Behavioral - somnolence (general depressed activity)
Lungs, Thorax, or Respiration - respiratory depression
REFERENCE :
NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki,
Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year:
36(Suppl 3),274,1988
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : >5 gm/kg
TOXIC EFFECTS :
Skin and Appendages - corrosive (after topical exposure)
REFERENCE :
NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki,
Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year:
36(Suppl 3),274,1988
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 1230 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay)
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 22,1433,1988
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 850 mg/kg
TOXIC EFFECTS :
Sense Organs and Special Senses (Eye) - ptosis
Behavioral - somnolence (general depressed activity)
Lungs, Thorax, or Respiration - respiratory depression
REFERENCE :
NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki,
Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year:
36(Suppl 3),274,1988
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : >5 gm/kg
TOXIC EFFECTS :
Skin and Appendages - corrosive (after topical exposure)
REFERENCE :
NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki,
Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year:
36(Suppl 3),274,1988
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 173 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: 22,769,1991
TYPE OF TEST : LD - Lethal dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : >5 gm/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity)
Gastrointestinal - nausea or vomiting
Blood - hemorrhage
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 22,1453,1988
** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 5600 mg/kg/28D-I
TOXIC EFFECTS :
Gastrointestinal - other changes
Liver - changes in liver weight
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - transaminases
REFERENCE :
NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki,
Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year:
36(Suppl 3),289,1988
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 7280 mg/kg/26W-I
TOXIC EFFECTS :
Liver - hepatitis (hepatocellular necrosis), diffuse
Liver - other changes
Kidney, Ureter, Bladder - changes in bladder weight
REFERENCE :
NKRZAZ Chemotherapy (Tokyo). (Nippon Kagaku Ryoho Gakkai, 2-20-8 Kamiosaki,
Shinagawa-Ku, Tokyo 141, Japan) V.1- 1953- Volume(issue)/page/year:
36(Suppl 3),311,1988
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 420 mg/kg/21D-I
TOXIC EFFECTS :
Kidney, Ureter, Bladder - urine volume increased
Kidney, Ureter, Bladder - other changes in urine composition
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - phosphatases
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 22,1606,1988
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : 11200 mg/kg/28D-I
TOXIC EFFECTS :
Liver - other changes
Blood - normocytic anemia
Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 22,1453,1988
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : 8400 mg/kg/4W-I
TOXIC EFFECTS :
Liver - other changes
Kidney, Ureter, Bladder - changes in tubules (including acute renal failure,
acute tubular necrosis)
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 22,1485,1988
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : 3640 mg/kg/26W-I
TOXIC EFFECTS :
Sense Organs and Special Senses (Eye) - lacrimation
Behavioral - food intake (animal)
Gastrointestinal - nausea or vomiting
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 22,1533,1988
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Primate - monkey
DOSE/DURATION : 11200 mg/kg/28D-I
TOXIC EFFECTS :
Liver - hepatitis (hepatocellular necrosis), diffuse
Kidney, Ureter, Bladder - changes in tubules (including acute renal failure,
acute tubular necrosis)
Related to Chronic Data - death
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 22,1502,1988
*** END OF RECORD ***
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