Details
Stereochemistry | RACEMIC |
Molecular Formula | C19H21N3O5 |
Molecular Weight | 371.3871 |
Optical Activity | ( + / - ) |
Defined Stereocenters | 0 / 1 |
E/Z Centers | 0 |
Charge | 0 |
SHOW SMILES / InChI
SMILES
COC(=O)C1=C(C)NC(C)=C(C1C2=CC=CC3=NON=C23)C(=O)OC(C)C
InChI
InChIKey=HMJIYCCIJYRONP-UHFFFAOYSA-N
InChI=1S/C19H21N3O5/c1-9(2)26-19(24)15-11(4)20-10(3)14(18(23)25-5)16(15)12-7-6-8-13-17(12)22-27-21-13/h6-9,16,20H,1-5H3
Molecular Formula | C19H21N3O5 |
Molecular Weight | 371.3871 |
Charge | 0 |
Count |
|
Stereochemistry | RACEMIC |
Additional Stereochemistry | No |
Defined Stereocenters | 0 / 1 |
E/Z Centers | 0 |
Optical Activity | ( + / - ) |
Isradipine (tradenames DynaCirc, Prescal) is a calcium channel blocker of the dihydropyridine class. It is usually prescribed for the treatment of high blood pressure in order to reduce the risk of stroke and heart attack. Except for diuretic activity, the mechanism of which is not clearly understood, the pharmacodynamics effects of isradipine observed in whole animals can also be explained by calcium channel blocking activity, especially dilating effects in arterioles, which reduce systemic resistance and lower blood pressure, with a small increase in resting heart rate. Isradipine binds to calcium channels with high affinity and specificity and inhibits calcium flux into cardiac and arterial smooth muscle cells. It exhibits greater selectivity towards arterial smooth muscle cells owing to alternative splicing of the alpha-1 subunit of the channel and increased prevalence of inactive channels in smooth muscle cells. Although like other dihydropyridine calcium channel blockers, isradipine has negative inotropic effects in vitro; studies conducted in intact anesthetized animals have shown that the vasodilating effect occurs at doses lower than those do which affect contractility. In patients with normal ventricular function, isradipine's afterload reducing properties lead to some increase in cardiac output. Effects in patients with impaired ventricular function have not been fully studied. Most adverse reactions were mild and related to the vasodilatory effects of isradipine (dizziness, edema, palpitations, flushing, tachycardia), and many were transient. About 5% of isradipine patients left studies prematurely because of adverse reactions (vs. 3% of placebo patients and 6% of active control patients), principally due to headache, edema, dizziness, palpitations, and gastrointestinal disturbances.
CNS Activity
Approval Year
Targets
Primary Target | Pharmacology | Condition | Potency |
---|---|---|---|
Target ID: CHEMBL2095229 Sources: https://www.ncbi.nlm.nih.gov/pubmed/10766758 |
Conditions
Condition | Modality | Targets | Highest Phase | Product |
---|---|---|---|---|
Primary | ISRADIPINE Approved UseIsradipine capsules are indicated in the management of hypertension. It may be used alone or concurrently with thiazide-type diuretics. Launch Date2015 |
Cmax
Value | Dose | Co-administered | Analyte | Population |
---|---|---|---|---|
11.44 ng/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/2965165/ |
5 mg single, oral dose: 5 mg route of administration: Oral experiment type: SINGLE co-administered: |
ISRADIPINE plasma | Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FASTED |
|
29.84 ng/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/2965165/ |
10 mg single, oral dose: 10 mg route of administration: Oral experiment type: SINGLE co-administered: |
ISRADIPINE plasma | Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FASTED |
|
5.89 ng/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/2965165/ |
2.5 mg single, oral dose: 2.5 mg route of administration: Oral experiment type: SINGLE co-administered: |
ISRADIPINE plasma | Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FASTED |
AUC
Value | Dose | Co-administered | Analyte | Population |
---|---|---|---|---|
14.52 ng × h/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/2965165/ |
5 mg single, oral dose: 5 mg route of administration: Oral experiment type: SINGLE co-administered: |
ISRADIPINE plasma | Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FASTED |
|
31.01 ng × h/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/2965165/ |
10 mg single, oral dose: 10 mg route of administration: Oral experiment type: SINGLE co-administered: |
ISRADIPINE plasma | Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FASTED |
|
7.31 ng × h/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/2965165/ |
2.5 mg single, oral dose: 2.5 mg route of administration: Oral experiment type: SINGLE co-administered: |
ISRADIPINE plasma | Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FASTED |
T1/2
Value | Dose | Co-administered | Analyte | Population |
---|---|---|---|---|
2.85 h EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/2965165/ |
5 mg single, oral dose: 5 mg route of administration: Oral experiment type: SINGLE co-administered: |
ISRADIPINE plasma | Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FASTED |
|
2.68 h EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/2965165/ |
10 mg single, oral dose: 10 mg route of administration: Oral experiment type: SINGLE co-administered: |
ISRADIPINE plasma | Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FASTED |
|
2.93 h EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/2965165/ |
2.5 mg single, oral dose: 2.5 mg route of administration: Oral experiment type: SINGLE co-administered: |
ISRADIPINE plasma | Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FASTED |
Doses
Dose | Population | Adverse events |
---|---|---|
30 mg single, oral Highest studied dose |
healthy, 27 - 44 n = 8 Health Status: healthy Age Group: 27 - 44 Sex: M Population Size: 8 Sources: |
|
0.015 mg/kg single, intravenous Highest studied dose Dose: 0.015 mg/kg Route: intravenous Route: single Dose: 0.015 mg/kg Sources: Page: p.1103 |
unhealthy, 58+/-8 n = 8 Health Status: unhealthy Condition: Chest pain| stable angina Age Group: 58+/-8 Sex: M Population Size: 8 Sources: Page: p.1103 |
|
10 mg 1 times / day multiple, oral MTD Dose: 10 mg, 1 times / day Route: oral Route: multiple Dose: 10 mg, 1 times / day Sources: Page: p.1823, 1826, 1827 |
unhealthy, 58.5 n = 26 Health Status: unhealthy Condition: Parkinson's disease Age Group: 58.5 Sex: M+F Population Size: 26 Sources: Page: p.1823, 1826, 1827 |
Disc. AE: Drop of blood pressure, Leg edema... AEs leading to discontinuation/dose reduction: Drop of blood pressure Sources: Page: p.1823, 1826, 1827Leg edema Dizziness |
100 mg single, oral (max) Overdose Dose: 100 mg Route: oral Route: single Dose: 100 mg Sources: |
healthy Health Status: healthy Sources: |
Other AEs: Lethargy, Sinus tachycardia... Other AEs: Lethargy Sources: Sinus tachycardia Hypotension |
200 mg single, oral Overdose Dose: 200 mg Route: oral Route: single Dose: 200 mg Co-administed with:: ethanol Sources: |
healthy Health Status: healthy Sources: |
Other AEs: Flushing, Tachycardia... Other AEs: Flushing Sources: Tachycardia Electrocardiogram ST segment depression Hypotension |
AEs
AE | Significance | Dose | Population |
---|---|---|---|
Dizziness | Disc. AE | 10 mg 1 times / day multiple, oral MTD Dose: 10 mg, 1 times / day Route: oral Route: multiple Dose: 10 mg, 1 times / day Sources: Page: p.1823, 1826, 1827 |
unhealthy, 58.5 n = 26 Health Status: unhealthy Condition: Parkinson's disease Age Group: 58.5 Sex: M+F Population Size: 26 Sources: Page: p.1823, 1826, 1827 |
Drop of blood pressure | Disc. AE | 10 mg 1 times / day multiple, oral MTD Dose: 10 mg, 1 times / day Route: oral Route: multiple Dose: 10 mg, 1 times / day Sources: Page: p.1823, 1826, 1827 |
unhealthy, 58.5 n = 26 Health Status: unhealthy Condition: Parkinson's disease Age Group: 58.5 Sex: M+F Population Size: 26 Sources: Page: p.1823, 1826, 1827 |
Leg edema | Disc. AE | 10 mg 1 times / day multiple, oral MTD Dose: 10 mg, 1 times / day Route: oral Route: multiple Dose: 10 mg, 1 times / day Sources: Page: p.1823, 1826, 1827 |
unhealthy, 58.5 n = 26 Health Status: unhealthy Condition: Parkinson's disease Age Group: 58.5 Sex: M+F Population Size: 26 Sources: Page: p.1823, 1826, 1827 |
Hypotension | 100 mg single, oral (max) Overdose Dose: 100 mg Route: oral Route: single Dose: 100 mg Sources: |
healthy Health Status: healthy Sources: |
|
Lethargy | 100 mg single, oral (max) Overdose Dose: 100 mg Route: oral Route: single Dose: 100 mg Sources: |
healthy Health Status: healthy Sources: |
|
Sinus tachycardia | 100 mg single, oral (max) Overdose Dose: 100 mg Route: oral Route: single Dose: 100 mg Sources: |
healthy Health Status: healthy Sources: |
|
Electrocardiogram ST segment depression | 200 mg single, oral Overdose Dose: 200 mg Route: oral Route: single Dose: 200 mg Co-administed with:: ethanol Sources: |
healthy Health Status: healthy Sources: |
|
Flushing | 200 mg single, oral Overdose Dose: 200 mg Route: oral Route: single Dose: 200 mg Co-administed with:: ethanol Sources: |
healthy Health Status: healthy Sources: |
|
Hypotension | 200 mg single, oral Overdose Dose: 200 mg Route: oral Route: single Dose: 200 mg Co-administed with:: ethanol Sources: |
healthy Health Status: healthy Sources: |
|
Tachycardia | 200 mg single, oral Overdose Dose: 200 mg Route: oral Route: single Dose: 200 mg Co-administed with:: ethanol Sources: |
healthy Health Status: healthy Sources: |
Overview
CYP3A4 | CYP2C9 | CYP2D6 | hERG |
---|---|---|---|
Drug as perpetrator
Target | Modality | Activity | Metabolite | Clinical evidence |
---|---|---|---|---|
Sources: https://pubmed.ncbi.nlm.nih.gov/11560876/ Page: - |
yes | |||
Sources: https://pubmed.ncbi.nlm.nih.gov/11560876/ Page: - |
yes |
Tox targets
Target | Modality | Activity | Metabolite | Clinical evidence |
---|---|---|---|---|
Sources: https://pubmed.ncbi.nlm.nih.gov/11487504/ Page: - |
||||
Sources: https://pubmed.ncbi.nlm.nih.gov/12007180/ Page: 1.0 |
PubMed
Title | Date | PubMed |
---|---|---|
The new calcium antagonist isradipine. Effect on blood pressure and the left ventricle in black hypertensive patients. | 1990 Jan |
|
Antiischemic and hemodynamic effects of intravenous isradipine, a new calcium antagonist, in coronary heart disease: a comparative double-blind cross-over study with nifedipine. | 1990 Nov |
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The place of isradipine in the treatment of hypertension. | 1991 Feb |
|
Low-dose isradipine once daily effectively controls 24-h blood pressure in essential hypertension. | 1991 Feb |
|
MIDAS, the Multicenter Isradipine/Diuretic Atherosclerosis Study. Design features and baseline data. | 1991 Feb |
|
The calcium antagonist PN 200-110 inhibits the reinforcing properties of cocaine. | 1991 Mar |
|
MIDAS: hypertension and atherosclerosis. A trial of the effects of antihypertensive drug treatment on atherosclerosis. MIDAS Research Group. | 1992 |
|
[Multicenter study of isradipine in the treatment of hypertension]. | 1992 Apr |
|
Isradipine treatment for hypertension in general practice in Hong Kong. | 1992 Jun |
|
A randomized comparative study of the electrophysiological and electrocardiographic effects of isradipine vs verapamil. | 1993 |
|
Obesity as a determinant for response to antihypertensive treatment. | 1993 Aug 28 |
|
Carotid plaque associations among hypertensive patients. | 1993 Feb 22 |
|
[The antihypertensive effect of isradipine and additional pharmacodynamic effects]. | 1993 Mar |
|
A multicenter comparison of isradipine and felodipine in the treatment of mild-to-moderate hypertension. The Physician's Study Group. | 1993 Mar |
|
Parenteral isradipine reduces blood pressure in hypertensive crisis. | 1993 Mar |
|
Disparate cardiovascular response to stress tests during isradipine and fosinopril therapy. | 1993 Sep 1 |
|
Calcium-channel entry blocker therapy for hypertensive patients with concomitant renal impairment: a focus on isradipine. | 1994 Dec |
|
How to study the role of hypertension in atherosclerosis. Lessons from MIDAS. Multicentre Isradipine Diuretic Atherosclerosis Study. | 1996 |
|
Effects of calcium entry blockers on distribution of blood volume. | 1996 Jul |
|
Trials investigating the anti-atherosclerotic effects of antihypertensive drugs. | 1996 Sep |
|
Final outcome results of the Multicenter Isradipine Diuretic Atherosclerosis Study (MIDAS). A randomized controlled trial. | 1996 Sep 11 |
|
Blood pressure and metabolic responses to moderate sodium restriction in isradipine-treated hypertensive patients. | 1997 Jan |
|
Contrasting effects of calcium channel blockade versus converting enzyme inhibition on proteinuria in African Americans with non-insulin-dependent diabetes mellitus and nephropathy. | 1997 May |
|
Isradipine in prediabetic hypertensive subjects. | 1998 Dec |
|
Responding for rewarding brain stimulation: cocaine and isradipine plus naltrexone. | 1998 Oct |
|
An open trial comparing isradipine with hydralazine and methyl dopa in the treatment of patients with severe pre-eclampsia. | 1999 May |
|
[Effects of calcium antagonists on atherosclerosis progression and intima media thickness]. | 2000 |
|
Functional expression and characterization of a voltage-gated CaV1.3 (alpha1D) calcium channel subunit from an insulin-secreting cell line. | 2001 Jul |
|
Life-threatening isradipine poisoning in a child. | 2002 Jun |
|
Isradipine enhancement of cerebral blood flow in abstinent cocaine abusers with and without chronic perfusion deficits. | 2002 Summer |
|
Effects of naltrexone and isradipine, alone or in combination, on cocaine responses in humans. | 2003 Jul |
|
Cav1.4alpha1 subunits can form slowly inactivating dihydropyridine-sensitive L-type Ca2+ channels lacking Ca2+-dependent inactivation. | 2003 Jul 9 |
|
Functional characterization of the L-type Ca2+ channel Cav1.4alpha1 from mouse retina. | 2004 Feb |
|
Calcium channels are involved in calcium oxalate crystal formation in specialized cells of Pistia stratiotes L. | 2004 Jun |
|
Evaluation of fresh and cryopreserved hepatocytes as in vitro drug metabolism tools for the prediction of metabolic clearance. | 2004 Nov |
|
Comparison of blood pressure control with amlodipine and controlled-release isradipine: an open-label, drug substitution study. | 2005 Apr |
|
Isradipine decreases the hemodynamic response of cocaine and methamphetamine results from two human laboratory studies: results from two human laboratory studies. | 2005 Jun |
|
Calcium channel blocker-associated small bowel angioedema. | 2009 Apr |
|
Expression and 1,4-dihydropyridine-binding properties of brain L-type calcium channel isoforms. | 2009 Feb |
|
Blocking L-type calcium channels reduced the threshold of cAMP-induced steroidogenic acute regulatory gene expression in MA-10 mouse Leydig cells. | 2010 Jan |
|
Early identification of clinically relevant drug interactions with the human bile salt export pump (BSEP/ABCB11). | 2013 Dec |
Sample Use Guides
The recommended initial dose of isradipine is 2.5 mg b.i.d. alone or in combination with a thiazide diuretic. An antihypertensive response usually occurs within 2-3 hours. Maximal response may require 2-4 weeks. If a satisfactory reduction in blood pressure does not occur after this period, the dose may be adjusted in increments of 5 mg/day at 2-4 week intervals up to a maximum of 20 mg/day. Most patients, however, show no additional response to doses above 10 mg/day, and adverse effects are increased in frequency above 10 mg/day.
Route of Administration:
Oral
In Vitro Use Guide
Sources: https://www.ncbi.nlm.nih.gov/pubmed/1285938
Curator's Comment: Cytosolic Ca2+ concentration ([Ca2+]i) was investigated in erythrocytes from spontaneously hypertensive rats (SHR) and their normotensive controls (WKY), after an acute treatment with the Ca2+ antagonist isradipine. In vitro, isradipine dose-dependently decreased [Ca2+]i only in SHR (P = .006). The reduction by isradipine of the elevated [Ca2+]i in SHR suggests the presence of a greater dihydropyridine-sensitive Ca2+ influx in the SHR erythrocyte.
Unknown
Substance Class |
Chemical
Created
by
admin
on
Edited
Fri Dec 15 17:32:20 GMT 2023
by
admin
on
Fri Dec 15 17:32:20 GMT 2023
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Record UNII |
YO1UK1S598
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Record Status |
Validated (UNII)
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Record Version |
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NDF-RT |
N0000007556
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NCI_THESAURUS |
C333
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WHO-ATC |
C08CA03
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NDF-RT |
N0000000069
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QC08CA03
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LIVERTOX |
NBK548193
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NDF-RT |
N0000175421
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DB00270
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100000091633
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33910
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YO1UK1S598
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Isradipine
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Z-3
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C47577
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m6557
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CHEMBL1648
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ISRADIPINE
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YO1UK1S598
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1354207
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DTXSID4023179
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TARGET -> INHIBITOR |
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IMPURITY -> PARENT |
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ACTIVE MOIETY |