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Citalopram

Basic information Safety Supplier Related

Citalopram Basic information

Product Name:
Citalopram
Synonyms:
  • 5-ISOBENZOFURANCARBONITRILE, 1,3-DIHYDRO-1-(3-(DIMETHYLAMINO)PROPYL)-1-(4-FLUOROPHENYL)-
  • 1-[3-(DIMETHYLAMINO)PROPYL]-1-(4-FLUOROPHENYL)-1,3-DIHYDRO-5-ISOBENZOFURANCARBONITRILE
  • LU-10-171
  • CELEXA
  • (+/-)-CITALOPRAM
  • CITALOPRAM
  • CITALOPRAM, HYDROBROMIDE SALT
  • NITALAPRAM
CAS:
59729-33-8
MF:
C20H21FN2O
MW:
324.39
EINECS:
261-891-1
Product Categories:
  • Isotope
  • ALUDEX
  • Cnbio
  • Serotonin receptor
Mol File:
59729-33-8.mol
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Citalopram Chemical Properties

Melting point:
156-157 °C
Boiling point:
bp0.03 175-181°
Density 
1.18±0.1 g/cm3(Predicted)
storage temp. 
Sealed in dry,2-8°C
solubility 
Methanol (Slightly), Water (Slightly)
form 
Solid
pka
pKa 9.38(H2O) (Uncertain)
color 
White to Off-White
CAS DataBase Reference
59729-33-8(CAS DataBase Reference)
NIST Chemistry Reference
Citalopram(59729-33-8)
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Safety Information

RIDADR 
3249
HazardClass 
6.1(b)
PackingGroup 
III
Hazardous Substances Data
59729-33-8(Hazardous Substances Data)
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Citalopram Usage And Synthesis

Description

Citalopram is a specific serotonin-uptake inhibitor useful in the treatment of depression. In endogenous depression citalopram was reported to be as effective as amitriptyline and mianserin, while being inferior to clomipramine in both endogenous and non-endogenous depression.

Originator

Lundbeck (Denmark)

Uses

scabicide

Uses

antidepressant monoamine oxidase inhibitor (MAOIs)

Definition

ChEBI: A nitrile that is 1,3-dihydro-2-benzofuran-5-carbonitrile in which one of the hydrogens at position 1 is replaced by a p-fluorophenyl group, while the other is replaced by a 3-(dimethylamino)propyl group.

brand name

Cipramil

Biological Functions

Citalopram (Celexa) has an elimination half-life of 35 hours and is 80% bound to plasma proteins. Of all of the SSRIs it has the least effect on the cytochrome P450 system and has the most favorable profile regarding drug–drug interactions.

General Description

Citalopram (Celexa) is a racemic mixture and is very SERTselective. The N-monodemethylated compound is slightlyless potent but is as selective. The aryl substituents are importantfor activity. The ether function is important andprobably interacts with the protonated amino group to givea suitable shape for SERT binding.

Biological Activity

Highly selective and potent 5-HT uptake inhibitor with no effect on noradrenalin or dopamine uptake (IC 50 values are 1.8, 8800 and 41000 nM respectively). Has negligible activity at a wide range of receptors and is clinically used as an antidepressant. Also available as part of the Serotonin Uptake Inhibitor Tocriset™ .

Clinical Use

SSRI antidepressant:
Depressive illness

Panic disorder

Drug interactions

Potentially hazardous interactions with other drugs
Analgesics: increased risk of bleeding with aspirin and NSAIDs; risk of CNS toxicity increased with tramadol.
Anti-arrhythmics: increased risk of ventricular arrhythmias with amiodarone, disopyramide and dronedarone - avoid.
Antibacterials: possibly increased risk of ventricular arrhythmias with IV erythromycin, moxifloxacin, pentamidine and telithromycin.
Anticoagulants: effect of coumarins possibly enhanced; possibly increased risk of bleeding with dabigatran.
Antidepressants: avoid with MAOIs and moclobemide, increased risk of toxicity; avoid with St John’s wort; possibly enhanced serotonergic effects with dapoxetine and duloxetine; can increase tricyclics antidepressant concentration; increased agitation and nausea with tryptophan; possible increased risk of convulsions with vortioxetine.
Antiepileptics: convulsive threshold lowered.
Antihistamines: increased risk of ventricular arrhythmias with mizolastine - avoid.
Antimalarials: avoid with artemether/lumefantrine and piperaquine with artenimol; possible increased risk of ventricular arrhythmias with chloroquine and quinine.
Antipsychotics: possibly increased clozapine concentration; increased risk of ventricular arrhythmias with haloperidol and pimozide - avoid.
Antivirals: concentration possibly increased by ritonavir.
Beta-blockers: increased risk of ventricular arrhythmias with sotalol - avoid.
Dopaminergics: avoid with selegiline; increased risk of CNS toxicity with rasagiline.
5 HT1 agonist: increased risk of CNS toxicity - avoid; possibly increased risk of serotonergic effects with naratriptan.
Linezolid: use with care, possibly increased risk of side effects.
Lithium: increased risk of CNS effects.
Methylthioninium: risk of CNS toxicity - avoid if possible.

Metabolism

Citalopram is metabolised by demethylation, deamination, and oxidation to active and inactive metabolites. The demethylation of citalopram to one of its active metabolites, demethylcitalopram, involves the cytochrome P450 isoenzymes CYP3A4 and CYP2C19; the metabolism of citalopram is also partly dependent on CYP2D6. Didemethylcitalopram has also been identified as a metabolite of citalopram. It is excreted mainly via the liver (85%) with the remainder via the kidneys. About 12% is excreted in the urine as unchanged drug.

Citalopram Preparation Products And Raw materials

Raw materials

CitalopramSupplier

3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Email
3bsc@sina.com
LGM Pharma
Tel
1-(800)-881-8210
Email
inquiries@lgmpharma.com
Nanjing Chemlin Chemical Co., Ltd
Tel
025-83697070
Email
info@chemlin.com.cn
BOC Sciences
Tel
16314854226
Email
info@bocsci.com
Artis Chemistry (Shanghai) Co. Ltd.
Tel
86-21-60936353
Email
synthesis@artis-chem.com