Page last updated: 2024-11-09

methylatropine

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Description

methylatropine: RN given refers to endo-(+-)-isomer; structure in Negwer, 5th ed, #3766 [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

Cross-References

ID SourceID
PubMed CID656598
CHEMBL ID1187724
MeSH IDM0049294

Synonyms (24)

Synonym
OPREA1_273790
methylatropine
[(1r,5s)-8,8-dimethyl-8-azoniabicyclo[3.2.1]octan-3-yl] 3-hydroxy-2-phenylpropanoate
methyl atropine
n-methylatropine
31610-87-4
unii-80719i460h
80719i460h ,
8-azoniabicyclo(3.2.1)octane, 3-(3-hydroxy-1-oxo-2-phenylpropoxy)-8,8-dimethyl-, endo-(+-)-
(+-)-n-methylatropine
n-methylatropinium
8-azoniabicyclo(3.2.1)octane, 3-(3-hydroxy-1-oxo-2-phenylpropoxy)-8,8-dimethyl-, (3-endo)-
methylatropinium
methylatropinium cation
methylatropinium ion
CHEMBL1187724
(+/-)-n-methylatropine
8-azoniabicyclo(3.2.1)octane, 3-(3-hydroxy-1-oxo-2- phenylpropoxy)-8,8-dimethyl-, (3-endo)-
methylatropine [who-dd]
homatropine methylbromide impurity e [ep impurity]
DTXSID5046932
.eumydrin
DB13833
Q27269116

Research Excerpts

Treatment

Methylatropine pretreatment significantly increased islet blood flow during hypoglycemia by 181%. Pretreatment with methyl atropine (1 mg/kg) or hexamethonium had no significant effect on ME-induced hypotension.

ExcerptReferenceRelevance
"methylatropine pretreatment, and plasma insulin decreased slightly after selective hepatic vagotomy."( Impaired vagus nerve-mediated control of insulin secretion in Wistar fatty rats.
Daimon, M; Igarashi, M; Manaka, H; Niijima, A; Ohnuma, H; Sasaki, H; Sugiyama, K; Tominaga, M; Yamatani, K, 1998
)
1.02
"Methylatropine pretreatment significantly increased islet blood flow during hypoglycemia by 181%."( Pancreatic islet blood flow in conscious rats during hyperglycemia and hypoglycemia.
Goto, D; Iwase, M; Tashiro, K; Uchizono, Y; Yoshinari, M, 2001
)
1.03
"pretreatment with methylatropine (1 mg/kg) or hexamethonium (30 mg/kg) had no significant effect on ME-induced hypotension."( Cardiovascular effects of methyleugenol, a natural constituent of many plant essential oils, in normotensive rats.
Figueiredo, AF; Gloria, PD; Lahlou, S; Leal-Cardoso, JH; Magalhães, PJ, 2004
)
0.65
"4 Pretreatment with methylatropine and phentolamine combined caused a small insulin response, which was inhibited by propranolol."( The mechanism of 2-deoxy-glucose-induced insulin secretion in the mouse.
Ahrén, B; Bood, M; Karlsson, S, 1987
)
0.59

Toxicity

ExcerptReferenceRelevance
" A late phase developed hours after VCN dosing, and the toxic signs included depression, convulsions, and respiratory failure followed by death at high doses."( Assessment of the acute acrylonitrile-induced neurotoxicity in rats.
Ahmed, AE; Elshabrawy, O; Farooqui, MY; Ghanayem, BI; Mumtaz, MM,
)
0.13
" Experiments were performed in rats to examine the effect on anguidine lethality of treatment with several agents that alter gut function or toxic effects of other chemicals in the gut."( Reduction of anguidine toxicity in rats by atropine and methylatropine.
Conner, BH; Conner, MW; Malarkey, DE; Newberne, PM; Rogers, AE, 1989
)
0.52
" Saline-treated guinea pigs with prior fear conditioning became digitalis toxic at a significantly lower dose of the drug than control guinea pigs that had not had exposure to signaled shock."( Cholinergic activation produces psychosomatic digitalis toxicity.
Cagin, NA; Natelson, BH, 1981
)
0.26

Pharmacokinetics

ExcerptReferenceRelevance
" Pharmacokinetic analysis showed no significant differences for rocuronium during the 3 anesthetic techniques."( Clinical pharmacology of rocuronium (Org 9426): study of the time course of action, dose requirement, reversibility, and pharmacokinetics.
Hennis, PJ; Leclercq, MG; Smeulers, NJ; van den Broek, L; van Santen, GJ; Wierda, JM,
)
0.13

Compound-Compound Interactions

ExcerptReferenceRelevance
"The behavioral effects of phencyclidine (PCP) and ketamine administered alone and in combination with naloxone, atropine, methyl atropine, chlorpromazine and d-amphetamine were studied in squirrel monkeys trained to press a response lever under a fixed-ratio 30 schedule maintained by the termination of a stimulus associated with electric shock presentation."( Behavioral effects of phencyclidine and ketamine alone and in combination with other drugs.
Byrd, LD; Howell, LL; Standish, LJ, 1987
)
0.27
"The therapeutic value of 80 micrograms atropine methonitrate delivered per metered aerosol and its combination with 450 micrograms reproterol was investigated in a controlled double-blind cross-over trial in 17 patients with chronic bronchitis and airway obstruction."( Comparative studies of atropine methonitrate and its combination with reproterol in chronic airway obstruction.
Aurich, R; Macha, HN, 1982
)
0.26

Dosage Studied

Pilocarpine and oxotremorine effects are not appreciably affected either by pretreatment with methylatropine. To characterize the antimuscarinic potencies, doses were calculated that produce a 10-fold shift to the right of the dose-response curves for A.

ExcerptRelevanceReference
" The mean digoxin dosage at the development of fatal arrhythmias after the 100 micrograms/kg of FK 33,824 was 30% lower than the control group."( Opioid receptor agonists D-Ala-2-Me-Phe-4-Met-(O)-ol enkephalin and ethylketocyclazocine in the brain accentuate digoxin-induced arrhythmias.
Rabkin, SW,
)
0.13
" Log ID50s calculated for the antagonists from the dose-response curves were found to correlate significantly with the log Kis of the antagonists for the muscarinic M3 receptor subtype."( Pressor response to posterior hypothalamic administration of carbachol is mediated by muscarinic M3 receptor.
Martin, JR, 1992
)
0.28
" In phase 1, maximal bronchodilation was determined by dose-response studies on separate days."( Efficacy of atropine methylnitrate alone and in combination with albuterol in children with asthma.
Hill, MR; Nelson, HS; Sladek, WA; Sur, S; Szefler, SJ; Vichyanond, P, 1990
)
0.28
" Atropine sulphate administered locally into the skin antagonised the response to carbachol: the dose-response curve for carbachol was shifted to the right without any depression of the maximum of the curve."( Effects of locally and systemically administered cholinoceptor antagonists on the secretory response of human eccrine sweat glands to carbachol.
Bradshaw, CM; Longmore, J; Szabadi, E, 1985
)
0.27
" Dose-response curves for pilocarpine and oxotremorine effects are not appreciably affected either by pretreatment with methylatropine (1."( Microwave facilitation of methylatropine antagonism of central cholinomimetic drug effects.
Fujimoto, JM; Ishii, TK; Lange, DG; Quock, RM, 1986
)
0.78
" To characterize the antimuscarinic potencies of pirenzepine and N-methylatropine, for both antagonists doses were calculated that produce a 10-fold shift to the right of the dose-response curves for A) the pressor response to McN-A-343 (i."( A comparison of the antimuscarinic effects of pirenzepine and N-methylatropine on ganglionic and vascular muscarinic receptors in the rat.
Lambrecht, G; Moser, U; Mutschler, E; Wess, J, 1984
)
0.74
" The dose-response curve for rats with gastric vagotomy was shifted to the right."( Histamine-elicited drinking is dependent upon gastric vagal afferents and peripheral angiotensin II in the rat.
Kraly, FS; Miller, LA, 1982
)
0.26
"The diabetogenic action of the beta-cell toxin, alloxan, is transient when administered to mice at a dosage of 50 mg/kg."( Blockade of muscarinic transmission increases the frequency of diabetes after low-dose alloxan challenge in the mouse.
Ahrén, B; Mulder, H; Sundkvist, G; Sundler, F, 1996
)
0.29
" In the abdominal constriction test, LXM-10 had a significant dose-response effect, and the maximal inhibition ratio was 79."( Antinociceptive effects of the novel spirocyclopiperazinium salt compound LXM-10 in mice.
Li, CL; Li, RT; Sun, Q; Ye, J; Yue, CQ, 2007
)
0.34
" However, the effects of this dosing schedule administered after a brain insult and the underlying molecular mechanisms in the hippocampus are unknown."( Alpha-Linolenic Acid-Induced Increase in Neurogenesis is a Key Factor in the Improvement in the Passive Avoidance Task After Soman Exposure.
Apland, JP; Chen, J; Grunberg, N; Marini, AM; McDonough, J; Pan, H; Piermartiri, TC, 2015
)
0.42
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (394)

TimeframeStudies, This Drug (%)All Drugs %
pre-1990184 (46.70)18.7374
1990's107 (27.16)18.2507
2000's73 (18.53)29.6817
2010's30 (7.61)24.3611
2020's0 (0.00)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 18.68

According to the monthly volume, diversity, and competition of internet searches for this compound, as well the volume and growth of publications, there is estimated to be moderate demand-to-supply ratio for research on this compound.

MetricThis Compound (vs All)
Research Demand Index18.68 (24.57)
Research Supply Index6.06 (2.92)
Research Growth Index4.16 (4.65)
Search Engine Demand Index21.17 (26.88)
Search Engine Supply Index2.00 (0.95)

This Compound (18.68)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials12 (2.88%)5.53%
Reviews3 (0.72%)6.00%
Case Studies4 (0.96%)4.05%
Observational0 (0.00%)0.25%
Other397 (95.43%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]