Diphenmanil (methylsulfate)

Diphemanil methylsulfate is a quaternary ammonium anticholinergic. It binds muscarinic acetycholine receptors and thereby decreases secretory excretion of stomach acids as well as saliva and sweat.IC50 value: Target: mAChRDiphemanil Methylsulfate exerts its action by primarily binding the muscarinic M3 receptor. M3 receptors are located in the smooth muscles of the blood vessels, as well as in the lungs. This means they cause vasodilation and bronchoconstriction. They are also in the smooth muscles of the gastrointestinal tract (GIT), which help in increasing intestinal motility and dilating sphincters. The M3 receptors are also located in many glands which help to stimulate secretion in salivary glands and other glands of the body.

Signaling Pathways >> GPCR/G Protein >> mAChR

Signaling Pathways >> Neuronal Signaling >> mAChR

Research Areas >> Endocrinology

[1]. Küng M, Diamond L. Effect of inhaled diphemanil methylsulfate, a parasympatholytic agent, on histamine induced bronchoconstriction in asymptomatic asthmatics. Ann Allergy. 1984 Jan;52(1):22-5.

[2]. Vidal AM, Rey E, Pons G et al. Pharmacokinetics of diphemanil methylsulphate in healthy subjects. Eur J Clin Pharmacol. 1992;42(6):689-91.

[3]. Vidal AM, Chéron G, Rey E et al. Pharmacokinetics of diphemanil methylsulphate in infants. Eur J Clin Pharmacol. 1993;45(1):89-91.

[4]. Chéron G, Vidal AM, Rey E et al. [Pharmacokinetics of diphemanil methylsulfate in infants]. Arch Pediatr. 1994 Jan;1(1):33-7.

[5]. Adamantidis M, Dumotier B, Caron J, Dupuis B. [Electrophysiologic effects and arrhythmogenic potential of diphemanil methylsulfate on rabbit purkinje fibers. Correlations with clinical observations of QT prolongation in pediatrics]. Arch Mal Coeur Vaiss.

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MOLECULAR FORMULA :

C20-H24-N.C-H3-O4-S

MOLECULAR WEIGHT :

389.55

WISWESSER LINE NOTATION :

T6K DYTJ A1 A1 DUYR&R &WSO&O1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

1107 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

PSEBAA Proceedings of the Society for Experimental Biology and Medicine. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1903/04- Volume(issue)/page/year: 78,576,1951

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intravenous

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

5 mg/kg

TOXIC EFFECTS :

Sense Organs and Special Senses (Eye) - mydriasis (pupillary dilation) Autonomic Nervous System - smooth muscle relaxant (mechanism undefined, spasmolytic)

REFERENCE :

OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 23,461,1982

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

317 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

PSEBAA Proceedings of the Society for Experimental Biology and Medicine. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1903/04- Volume(issue)/page/year: 78,576,1951

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

47 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

PSEBAA Proceedings of the Society for Experimental Biology and Medicine. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1903/04- Volume(issue)/page/year: 78,576,1951

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intravenous

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

4012 ug/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: 103,100,1955

TYPE OF TEST :

LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :

Intravenous

SPECIES OBSERVED :

Mammal - dog

DOSE/DURATION :

42 mg/kg

TOXIC EFFECTS :

Lungs, Thorax, or Respiration - other changes

REFERENCE :

PSEBAA Proceedings of the Society for Experimental Biology and Medicine. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1903/04- Volume(issue)/page/year: 78,576,1951

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - guinea pig

DOSE/DURATION :

404 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

PSEBAA Proceedings of the Society for Experimental Biology and Medicine. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1903/04- Volume(issue)/page/year: 78,576,1951