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Details

Stereochemistry ACHIRAL
Molecular Formula C20H24N.CH3O4S
Molecular Weight 389.508
Optical Activity NONE
Defined Stereocenters 0 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of DIPHEMANIL METHYLSULFATE

SMILES

COS([O-])(=O)=O.C[N+]1(C)CCC(CC1)=C(C2=CC=CC=C2)C3=CC=CC=C3

InChI

InChIKey=BREMLQBSKCSNNH-UHFFFAOYSA-M
InChI=1S/C20H24N.CH4O4S/c1-21(2)15-13-19(14-16-21)20(17-9-5-3-6-10-17)18-11-7-4-8-12-18;1-5-6(2,3)4/h3-12H,13-16H2,1-2H3;1H3,(H,2,3,4)/q+1;/p-1

HIDE SMILES / InChI

Molecular Formula CH3O4S
Molecular Weight 111.097
Charge -1
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Molecular Formula C20H24N
Molecular Weight 278.4113
Charge 1
Count
Stereochemistry RACEMIC
Additional Stereochemistry No
Defined Stereocenters 0 / 1
E/Z Centers 0
Optical Activity NONE

Diphemanil methylsulfate (Prantal), a quarternary amine, is a highly specific parasympathetic blocking agent.

Originator

Curator's Comment: reference retrieved from http://www.drugfuture.com/chemdata/diphemanil-methylsulfate.html

Approval Year

TargetsConditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
PRANTAL

Approved Use

Diphemanil Methylsulfate is used for Peptic ulcer, Gastric hyperacidity, Hypermotility in gastritis, Pylorospasm, Hyperhidrosis and other conditions.
Primary
PRANTAL

Approved Use

Diphemanil Methylsulfate is used for Peptic ulcer, Gastric hyperacidity, Hypermotility in gastritis, Pylorospasm, Hyperhidrosis and other conditions.
Primary
PRANTAL

Approved Use

Diphemanil Methylsulfate is used for Peptic ulcer, Gastric hyperacidity, Hypermotility in gastritis, Pylorospasm, Hyperhidrosis and other conditions.
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
47.9 μg/L
250 mg single, oral
dose: 250 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DIPHEMANIL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
433 μg × h/L
250 mg single, oral
dose: 250 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DIPHEMANIL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
8.35 h
250 mg single, oral
dose: 250 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DIPHEMANIL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
8.6 h
3 mg/kg single, oral
dose: 3 mg/kg
route of administration: Oral
experiment type: SINGLE
co-administered:
DIPHEMANIL plasma
Homo sapiens
population: UNHEALTHY
age: NEWBORN
sex: UNKNOWN
food status: FASTED
Doses

Doses

DosePopulationAdverse events​
2 mg single, respiratory
Highest studied dose
Dose: 2 mg
Route: respiratory
Route: single
Dose: 2 mg
Sources:
unhealthy, 25 years (range: 19-40 years)
Health Status: unhealthy
Age Group: 25 years (range: 19-40 years)
Sources:
2 % single, topical
Highest studied dose
Dose: 2 %
Route: topical
Route: single
Dose: 2 %
Sources:
unhealthy, 27-66 years
Health Status: unhealthy
Age Group: 27-66 years
Sex: M+F
Sources:
Other AEs: Dry mouth...
Other AEs:
Dry mouth (2 patients)
Sources:
250 mg single, oral
Dose: 250 mg
Route: oral
Route: single
Dose: 250 mg
Sources:
healthy, 30.8 years (range: 26 -42 years)
Health Status: healthy
Age Group: 30.8 years (range: 26 -42 years)
Sex: M
Sources:
Other AEs: Dry mouth, Headache...
Other AEs:
Dry mouth (1 patient)
Headache (1 patient)
Sources:
AEs

AEs

AESignificanceDosePopulation
Dry mouth 2 patients
2 % single, topical
Highest studied dose
Dose: 2 %
Route: topical
Route: single
Dose: 2 %
Sources:
unhealthy, 27-66 years
Health Status: unhealthy
Age Group: 27-66 years
Sex: M+F
Sources:
Dry mouth 1 patient
250 mg single, oral
Dose: 250 mg
Route: oral
Route: single
Dose: 250 mg
Sources:
healthy, 30.8 years (range: 26 -42 years)
Health Status: healthy
Age Group: 30.8 years (range: 26 -42 years)
Sex: M
Sources:
Headache 1 patient
250 mg single, oral
Dose: 250 mg
Route: oral
Route: single
Dose: 250 mg
Sources:
healthy, 30.8 years (range: 26 -42 years)
Health Status: healthy
Age Group: 30.8 years (range: 26 -42 years)
Sex: M
Sources:
PubMed

PubMed

TitleDatePubMed
Treatment of Frey's syndrome with topical 2% diphemanil methylsulfate (Prantal): a double-blind evaluation of 15 patients.
1990-06
Effect of inhaled diphemanil methylsulfate, a parasympatholytic agent, on histamine induced bronchoconstriction in asymptomatic asthmatics.
1984-01
Prantal in dermatology.
1952-05
Prantal in the treatment of hyperhidrosis.
1951-10
Patents

Sample Use Guides

Diphenylmethane methylsulfate was prescribed for the treatment of hyperhidrosis in a divided daily dosage of 200—400 mg. Fifteen patients with severe gustatory sweating after total parotidectomy and facial nerve preservation were alternatively treated with topically applied placebo and topically applied 2% diphemanil methylsulfate. 2 mg dose of diphemanil, administered by oral inhalation 20 minutes before histamine challenge, is ineffective in protecting against induced bronchospasm in asymptomatic adult asthmatics.
Route of Administration: Other
In Vitro Use Guide
Unknown
Substance Class Chemical
Created
by admin
on Mon Mar 31 18:15:59 GMT 2025
Edited
by admin
on Mon Mar 31 18:15:59 GMT 2025
Record UNII
W2ZG23MGYI
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
DIPHEMANIL METILSULFATE
INN   MART.   WHO-DD  
INN  
Preferred Name English
DIPHEMANIL METHYLSULFATE
GREEN BOOK   MI   ORANGE BOOK  
Common Name English
NSC-41725
Code English
PIPERIDINIUM, 4-(DIPHENYLMETHYLENE)-1,1-DIMETHYL-, METHYL SULFATE
Common Name English
DIPHEMANIL METHYLSULFATE [GREEN BOOK]
Common Name English
4-(DIPHENYLMETHYLENE)-1,1-DIMETHYLPIPERIDINIUM METHYL SULPHATE
Systematic Name English
DIPHEMANIL METHYLSULPHATE
Common Name English
DIPHEMANIL METHYLSULFATE [ORANGE BOOK]
Common Name English
Diphemanil metilsulfate [WHO-DD]
Common Name English
4-DIPHENYLMETHYLENE-1,1-DIMETHYL-PIPERIDINIUM METHYLSULFATE
Systematic Name English
PIPERIDINIUM, 4-(DIPHENYLMETHYLENE)-1,1-DIMETHYL-, METHYL SULPHATE
Common Name English
PRANTAL
Code English
DIPHEMANIL METHYLSULFATE [MI]
Common Name English
4-(Diphenylmethylene)-1,1-dimethylpiperidinium methyl sulfate
Systematic Name English
DIPHEMANIL METILSULFATE [MART.]
Common Name English
diphemanil metilsulfate [INN]
Common Name English
Classification Tree Code System Code
CFR 21 CFR 310.201
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
NCI_THESAURUS C29704
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
Code System Code Type Description
CAS
62-97-5
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
WIKIPEDIA
DIPHEMANIL METILSULFATE
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
NSC
41725
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
EVMPD
SUB07208MIG
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
FDA UNII
W2ZG23MGYI
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
EPA CompTox
DTXSID9022948
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
PUBCHEM
6126
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
CHEBI
59782
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
NCI_THESAURUS
C65419
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
SMS_ID
100000082877
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
ChEMBL
CHEMBL1201340
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
DRUG BANK
DB00729
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
MESH
C028209
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
INN
342
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
MERCK INDEX
m4606
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY Merck Index
RXCUI
23364
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY RxNorm
ECHA (EC/EINECS)
200-552-4
Created by admin on Mon Mar 31 18:15:59 GMT 2025 , Edited by admin on Mon Mar 31 18:15:59 GMT 2025
PRIMARY
Related Record Type Details
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PARENT -> SALT/SOLVATE
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ACTIVE MOIETY