Details
Stereochemistry | RACEMIC |
Molecular Formula | C20H24N2.C4H4O4 |
Molecular Weight | 408.4901 |
Optical Activity | ( + / - ) |
Defined Stereocenters | 0 / 1 |
E/Z Centers | 1 |
Charge | 0 |
SHOW SMILES / InChI
SMILES
OC(=O)\C=C/C(O)=O.CC(C1=C(CCN(C)C)CC2=C1C=CC=C2)C3=CC=CC=N3
InChI
InChIKey=SWECWXGUJQLXJF-BTJKTKAUSA-N
InChI=1S/C20H24N2.C4H4O4/c1-15(19-10-6-7-12-21-19)20-17(11-13-22(2)3)14-16-8-4-5-9-18(16)20;5-3(6)1-2-4(7)8/h4-10,12,15H,11,13-14H2,1-3H3;1-2H,(H,5,6)(H,7,8)/b;2-1-
DescriptionSources: https://www.drugbank.ca/drugs/DB08801
Sources: https://www.drugbank.ca/drugs/DB08801
Dimetindene (trade name Fenistil; other name dimethindene maleate) is a potent antipruritic antihistamine, characterized by the small size of its effective dose and its rapidity of action. Dimetindene is an antihistamine/anticholinergic that is a selective H1 antagonist. Its effect sets in after 20 to 60 minutes and lasts several hours. Dimetindene drops as well as Dimetindene syrup is particularly indicated in pediatric practice. Dimetindene is indicated as symptomatic treatment of allergic reactions: urticaria, allergies of the upper respiratory tract such as hay fever and perennial rhinitis, food, and drug allergies; pruritus of various origins, except pruritus due to cholestasis; insect bites. Dimetindene is also indicated for pruritus in eruptive skin diseases such as chicken-pox. Dimetindene can be as an adjuvant in eczema and other pruriginous dermatoses of allergic origin.
CNS Activity
Originator
Approval Year
Targets
Primary Target | Pharmacology | Condition | Potency |
---|---|---|---|
Target ID: CHEMBL231 Sources: https://www.ncbi.nlm.nih.gov/pubmed/12593665 |
0.692 nM [Ki] |
Conditions
Condition | Modality | Targets | Highest Phase | Product |
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Sources: http://pcm.me/fenistil-%C2%AE/ |
Primary | Fenistil Approved UseUnknown |
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Sources: http://pcm.me/fenistil-%C2%AE/ |
Primary | Fenistil Approved UseUnknown |
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Sources: http://pcm.me/fenistil-%C2%AE/ |
Primary | Fenistil Approved UseUnknown |
Cmax
Value | Dose | Co-administered | Analyte | Population |
---|---|---|---|---|
14.6 ng/mL |
4 mg single, oral dose: 4 mg route of administration: Oral experiment type: SINGLE co-administered: |
DIMETHINDENE plasma | Homo sapiens population: HEALTHY age: ADULT sex: UNKNOWN food status: UNKNOWN |
AUC
Value | Dose | Co-administered | Analyte | Population |
---|---|---|---|---|
101.3 ng × h/mL |
4 mg single, oral dose: 4 mg route of administration: Oral experiment type: SINGLE co-administered: |
DIMETHINDENE plasma | Homo sapiens population: HEALTHY age: ADULT sex: UNKNOWN food status: UNKNOWN |
T1/2
Value | Dose | Co-administered | Analyte | Population |
---|---|---|---|---|
5.41 h |
4 mg single, oral dose: 4 mg route of administration: Oral experiment type: SINGLE co-administered: |
DIMETHINDENE plasma | Homo sapiens population: HEALTHY age: ADULT sex: UNKNOWN food status: UNKNOWN |
Doses
Dose | Population | Adverse events |
---|---|---|
0.28 mg 2 times / day multiple, intranasal Recommended Dose: 0.28 mg, 2 times / day Route: intranasal Route: multiple Dose: 0.28 mg, 2 times / day Sources: |
unhealthy, 18 -69 n = 76 Health Status: unhealthy Condition: seasonal allergic rhinitis Age Group: 18 -69 Sex: M+F Population Size: 76 Sources: |
|
0.1 % 1 times / day single, topical Highest studied dose Dose: 0.1 %, 1 times / day Route: topical Route: single Dose: 0.1 %, 1 times / day Sources: |
healthy, 33 (21-54) n = 24 Health Status: healthy Age Group: 33 (21-54) Sex: M+F Population Size: 24 Sources: |
|
6 mg 1 times / day single, oral Highest studied dose Dose: 6 mg, 1 times / day Route: oral Route: single Dose: 6 mg, 1 times / day Sources: |
healthy, adult n = 60 Health Status: healthy Age Group: adult Sex: M Population Size: 60 Sources: |
PubMed
Title | Date | PubMed |
---|---|---|
[Antimycobacterial antihistaminics]. | 1989 Aug |
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[Antipruritic effect of antihistaminic and local anesthetic topical agents after iontophoretic histamine stimulation]. | 1996 May |
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Influence of peak measurement parameters on the quality of chiral electrophoretic separations. | 2003 Aug |
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Pruritic urticarial papules and plaques of pregnancy (PUPPP)--a case report. | 2003 May-Jun |
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Influence of methanol on the enantioresolution of antihistamines with carboxymethyl-beta-cyclodextrin in capillary electrophoresis. | 2004 Aug |
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Anaphylaxis to intravenous sinistrin. | 2004 Dec |
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[Dimethindene determination in various dosage forms by means of capillary isotachophoresis]. | 2005 Sep |
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Anaphylactic shock caused by buffalo's mozzarella cheese. | 2008 Jul |
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Analytical method for simultaneously measuring ex vivo drug receptor occupancy and dissociation rate: application to (R)-dimethindene occupancy of central histamine H1 receptors. | 2009 |
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Glioblastoma cells express functional cell membrane receptors activated by daily used medical drugs. | 2009 Dec |
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Induction of anti-tumor immunity by trifunctional antibodies in patients with peritoneal carcinomatosis. | 2009 Feb 14 |
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Evaluation of the paclitaxel-ifosfamide-cisplatin (TIP) combination in relapsed and/or metastatic cervical cancer. | 2009 Oct 6 |
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The basophil activation test in the diagnosis of allergy: technical issues and critical factors. | 2009 Sep |
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Permeability alterations after surgical trauma in normal rabbit peritoneum. | 2010 |
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10-year-old girl with severe edema caused by adder bite. | 2010 Dec |
Patents
Sample Use Guides
In Vivo Use Guide
Sources: http://pcm.me/fenistil-%C2%AE/
Drops: Infants up to 1 year, 10-30 drops; Infants of 1 to 3 years, 30-45 drops; Children over 3 years, 45-60 drops; Adults, 60-120 drops.
Syrup: Infants up to 1 year, 1-3 teaspoons; Infants of 1 to 3 years, 3-4 teaspoons; Children over 3 years, 4-6 teaspoons; Adults, 6-12 teaspoons. 1 teasponful Fenistil syrup = 5ml = 0.5mg
Coated tablets: Adults, 3-6 tablets.
Route of Administration:
Oral
In Vitro Use Guide
Sources: https://www.ncbi.nlm.nih.gov/pubmed/6832322
Experiments were carried out on isolated right ventricular papillary muscle of cat and guinea-pig, and on left atrial muscle of guinea-pig. The animals were anesthetized
with ether, and the muscles were dissected from the heart as quickly as possible and mounted in an organ chamber. The preparations were driven electrically at 2.0 or 0.5 Hz. The transmembrane potentials were recorded by means of conventional glass microelectrode technique. The slow response APs were elicited with histamine (10^-5 M) ) or caffeine (2 mM) in partially depolarized (up to -40 mV) left atrial and right ventricular.myocardium of guinea-pigs. The membrane was depolarized by means of elevated K + (26 mM)-Krebs solution. Dimetindene was freshly dissolved and added to the organ chamber containing Krebs solution (composition in mM): NaC1 118, KCl 4.7, CaC12 2.5, NaH2PO4 1.0, MgC12 1.2, NaHCO3 24.9, glucose 11.5, which was gassed with 95% 02 and 5% CO2 and kept at 37C
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NCI_THESAURUS |
C29578
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107677
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258334
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CHEMBL22108
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ACTIVE MOIETY
SUBSTANCE RECORD