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Details

Stereochemistry UNKNOWN
Molecular Formula C27H28N2O7
Molecular Weight 492.5204
Optical Activity ( + )
Additional Stereochemistry Yes
Defined Stereocenters 0 / 1
E/Z Centers 1
Charge 0

SHOW SMILES / InChI
Structure of CILNIDIPINE, (+)-

SMILES

COCCOC(=O)C1=C(C)NC(C)=C(C1C2=CC=CC(=C2)[N+]([O-])=O)C(=O)OC\C=C\C3=CC=CC=C3

InChI

InChIKey=KJEBULYHNRNJTE-DHZHZOJOSA-N
InChI=1S/C27H28N2O7/c1-18-23(26(30)35-14-8-11-20-9-5-4-6-10-20)25(21-12-7-13-22(17-21)29(32)33)24(19(2)28-18)27(31)36-16-15-34-3/h4-13,17,25,28H,14-16H2,1-3H3/b11-8+

HIDE SMILES / InChI

Molecular Formula C27H28N2O7
Molecular Weight 492.5204
Charge 0
Count
Stereochemistry RACEMIC
Additional Stereochemistry No
Defined Stereocenters 0 / 1
E/Z Centers 1
Optical Activity ( + / - )

Description
Curator's Comment: Description was created based on several sources, including http://www.nevapress.com/cdr/full/17/4/341.pdf | https://www.ncbi.nlm.nih.gov/pubmed/19426250

Cilnidipine (FRC-8653) is a dihydropyridine (DHP) type of calcium channel antagonist. The L-type Ca2+ channel blockade by cilnidipine affects predominantly vascular smooth muscle, thereby producing vasodilation of peripheral resistance vessels and coronary arteries. The blockade of N-type Ca2+ channels affects predominantly peripheral nerve endings of sympathetic neurons, thereby dilating blood vessels by lowering plasma catecholamine levels. Furthermore, renoprotective and neuroprotective effects as well as cardioprotective action of cilnidipine have been demonstrated in clinical practice or animal examinations. Cilnidipine was originated by Fuji & Rebio Pharmaceutical Co., Ltd. and developed jointly with Ajinomoto for the treatment of hypertension. Cilnidipine has been launched in Japan.

CNS Activity

Curator's Comment: Cilnidipine is brain penetrant and CNS active in animal studies. No human data available.

Approval Year

Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
4.7 ng/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
5.4 ng/mL
10 mg single, oral
dose: 10 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
15.7 ng/mL
20 mg single, oral
dose: 20 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
9.5 ng/mL
10 mg 1 times / day multiple, oral
dose: 10 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
13.5 ng/mL
10 mg 1 times / day multiple, oral
dose: 10 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
16.5 ng/mL
10 mg 1 times / day steady-state, oral
dose: 10 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
2.4 ng/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
8.6 ng/mL
10 mg single, oral
dose: 10 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
23.7 ng × h/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
27.5 ng × h/mL
10 mg single, oral
dose: 10 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
60.1 ng × h/mL
20 mg single, oral
dose: 20 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
51.4 ng × h/mL
10 mg 1 times / day multiple, oral
dose: 10 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
101.8 ng × h/mL
10 mg 1 times / day multiple, oral
dose: 10 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
95.5 ng × h/mL
10 mg 1 times / day steady-state, oral
dose: 10 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
11.6 ng × h/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
46.1 ng × h/mL
10 mg single, oral
dose: 10 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
5.2 h
10 mg 1 times / day multiple, oral
dose: 10 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
8.1 h
10 mg 1 times / day steady-state, oral
dose: 10 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
2.8 h
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
4.9 h
10 mg single, oral
dose: 10 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
CILNIDIPINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
Funbound

Funbound

ValueDoseCo-administeredAnalytePopulation
0.7%
CILNIDIPINE serum
Homo sapiens
Doses

Doses

DosePopulationAdverse events​
20 mg 1 times / day multiple, oral
Highest studied dose
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Other AEs: Skin eruption, Flushing of face...
Other AEs:
Skin eruption (grade 1, 7%)
Flushing of face (grade 1, 14%)
Sources:
AEs

AEs

AESignificanceDosePopulation
Flushing of face grade 1, 14%
20 mg 1 times / day multiple, oral
Highest studied dose
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
Skin eruption grade 1, 7%
20 mg 1 times / day multiple, oral
Highest studied dose
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, ADULT
Health Status: unhealthy
Age Group: ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
PubMed

PubMed

TitleDatePubMed
Renoprotective effect of the L/N-type calcium channel antagonist cilnidipine on puromycin aminonucleoside-induced nephrosis in rats.
2009
Prophylactic effects of an N- and L-type Ca2+ antagonist, cilnidipine, against cardiac hypertrophy and dysfunction in stroke-prone, spontaneously hypertensive rats.
2005-12-08
Comparison of the direct negative dromotropic effect of a new calcium channel blocker, cilnidipine, with that of nicardipine.
2005-05
[Effects of benidipine hydrochloride (Coniel) on blood pressure, heart rate and plasma norepinephrine concentration in spontaneously hypertensive rats].
1999-05
Comparison of 24-hour blood pressure, heart rate, and autonomic nerve activity in hypertensive patients treated with cilnidipine or nifedipine retard.
1998-08
Effect of cilnidipine, a novel dihydropyridine Ca++-channel antagonist, on N-type Ca++ channel in rat dorsal root ganglion neurons.
1997-03
Patents

Sample Use Guides

Normally once daily 5 to 10 mg of cilnidipine after breakfast orally for adult patient. The dose can be increased or reduced according to the age and symptoms. If the above dose is not effective enough, the dose can be increased to 20 mg once daily. For severe hypertension, 10 to 20 mg of cilnidipine orally once daily after breakfast.
Route of Administration: Oral
Cell viability of PC12 was not affected by low concentrations of cilnidipine up to 150 uM, but it was slightly decreased at 200 uM cilnidipine.
Substance Class Chemical
Created
by admin
on Mon Mar 31 23:10:02 GMT 2025
Edited
by admin
on Mon Mar 31 23:10:02 GMT 2025
Record UNII
S85436ZG85
Record Status Validated (UNII)
Record Version
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Name Type Language
(+)-FRC-8653
Preferred Name English
CILNIDIPINE, (+)-
Common Name English
3,5-PYRIDINEDICARBOXYLIC ACID, 1,4-DIHYDRO-2,6-DIMETHYL-4-(3-NITROPHENYL)-, 2-METHOXYETHYL 3-PHENYL-2-PROPENYL ESTER, (E)-(+)-
Systematic Name English
Code System Code Type Description
FDA UNII
S85436ZG85
Created by admin on Mon Mar 31 23:10:02 GMT 2025 , Edited by admin on Mon Mar 31 23:10:02 GMT 2025
PRIMARY
CAS
118934-77-3
Created by admin on Mon Mar 31 23:10:02 GMT 2025 , Edited by admin on Mon Mar 31 23:10:02 GMT 2025
NON-SPECIFIC STEREOCHEMISTRY
PUBCHEM
5282138
Created by admin on Mon Mar 31 23:10:02 GMT 2025 , Edited by admin on Mon Mar 31 23:10:02 GMT 2025
PRIMARY
CAS
132338-87-5
Created by admin on Mon Mar 31 23:10:02 GMT 2025 , Edited by admin on Mon Mar 31 23:10:02 GMT 2025
PRIMARY
Related Record Type Details
RACEMATE -> ENANTIOMER