Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Monoisotopic mass
263.167399677
InChI
InChI=1S/C19H21N/c1-20-14-6-11-19-17-9-4-2-7-15(17)12-13-16-8-3-5-10-18(16)19/h2-5,7-11,20H,6,12-14H2,1H3
InChI Key
InChIKey=PHVGLTMQBUFIQQ-UHFFFAOYSA-N
IUPAC Name
methyl({3-[(2E)-tricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3(8),4,6,12,14-hexaen-2-ylidene]propyl})amine
Traditional IUPAC Name
nortriptyline
SMILES
CNCCC=C1C2=CC=CC=C2CCC2=CC=CC=C12
pKa (Strongest Basic)
10.47
Refractivity
96.21 m3·mol-1
Dược Lực Học :
Similar to protriptyline, nortriptyline is a tricyclic antidepressant of the dibenzocycloheptene type and is the active metabolite of amitriptyline.
Cơ Chế Tác Dụng :
Nortriptyline hydrochloride, the N-demethylated active metabolite of amitriptyline, is a dibenzocycloheptene-derivative tricyclic antidepressant (TCA). TCAs are structurally similar to phenothiazines. They contain a tricyclic ring system with an alkyl amine substituent on the central ring. In non-depressed individuals, nortriptyline does not affect mood or arousal, but may cause sedation. In depressed individuals, nortriptyline exerts a positive effect on mood. TCAs are potent inhibitors of serotonin and norepinephrine reuptake. Secondary amine TCAs, such as nortriptyline, are more potent inhibitors of norepinephrine reuptake than tertiary amine TCAs, such as amitriptyline. TCAs also down-regulate cerebral cortical β-adrenergic receptors and sensitize post-synaptic serotonergic receptors with chronic use. The antidepressant effects of TCAs are thought to be due to an overall increase in serotonergic neurotransmission. TCAs also block histamine-H1 receptors, α1-adrenergic receptors and muscarinic receptors, which accounts for their sedative, hypotensive and anticholinergic effects (e.g. blurred vision, dry mouth, constipation, urinary retention), respectively. See toxicity section below for a complete listing of side effects. Nortriptyline exerts less anticholinergic and sedative side effects compared to the tertiary amine TCAs, amitriptyline and clomipramine. Nortriptyline may be used to treat depression, chronic pain (unlabeled use), irritable bowel syndrome (unlabeled use), diabetic neuropathy (unlabeled use), post-traumatic stress disorder (unlabeled use), and for migraine prophylaxis (unlabeled use).
It is believed that nortriptyline either inhibits the reuptake of the neurotransmitter serotonin at the neuronal membrane or acts at beta-adrenergic receptors. Tricyclic antidepressants do not inhibit monoamine oxidase nor do they affect dopamine reuptake.
Dược Động Học :
▧ Absorption :
Well absorbed from the GI tract. Peak plasma concentrations occur 7-8.5 hours following oral administration.
▧ Protein binding :
Highly protein-bound in plasma and tissues.
▧ Metabolism :
Undergoes hepatic metabolism via the same pathway as other TCAs.
▧ Route of Elimination :
Approximately one-third of a single orally administered dose is excreted in urine within 24 hours. Small amounts are excreted in feces via biliary elimination.
▧ Half Life :
16 to 90+ hours
Độc Tính :
Symptoms of overdose include cardiac dysrhythmias, severe hypotension, shock, congestive heart failure, pulmonary edema, convulsions, and CNS depression, including coma. Changes in the electrocardiogram, particularly in QRS axis or width, are clinically significant indicators of tricyclic antidepressant toxicity.
Side effects include: sedation, hypotension, blurred vision, dry mouth, constipation, urinary retention, postural hypotension, tachycardia, hypertension, ECG changes, heart failure, impaired memory and delirium, and precipitation of hypomanic or manic episodes in bipolar depression.
Withdrawal symptoms include gastrointestinal disturbances, anxiety, and insomnia.
Chỉ Định :
For the treatment of depression, chronic pain, irritable bowel syndrome, sleep disorders, diabetic neuropathy, agitation and insomnia, and migraine prophylaxis.
Tương Tác Thuốc :
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Altretamine
Risk of hypotension
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Artemether
Additive QTc-prolongation may occur. Concomitant therapy should be avoided.
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Atazanavir
Atazanavir may increase the effect and toxicity of the tricyclic antidepressant, nortriptyline, by decreasing its metabolism. Monitor for changes in the therapeutic and adverse effects of nortriptyline if atazanavir if initiated, discontinued or dose changed.
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Butabarbital
Barbiturates like butabarbital may increase the metabolism of tricyclic antidepressants like nortriptyline. Monitor for decreased therapeutic effects of tricyclic antidepressants if a barbiturate is initiated/dose increased, or increased effects if a barbiturate is discontinued/dose decreased. The tricyclic antidepressant dosage will likely need to be increased during concomitant barbiturate therapy, and reduced upon barbiturate discontinuation.
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Butalbital
Barbiturates such as butalbital may increase the metabolism of tricyclic antidepressants such as nortriptyline. Monitor for decreased therapeutic effects of tricyclic antidepressants if a barbiturate is initiated/dose increased, or increased effects if a barbiturate is discontinued/dose decreased. The tricyclic antidepressant dosage will likely need to be increased during concomitant barbiturate therapy, and reduced upon barbiturate discontinuation.
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Carbamazepine
Carbamazepine may decrease the serum concentration of the tricyclic antidepressant, nortriptyline, by increasing its metabolism. Monitor for changes in the therapeutic and adverse effects of nortriptyline if carbamazepine is initiated, discontinued or dose changed.
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Cimetidine
Cimetidine may increase the effect of the tricyclic antidepressant, nortriptyline, by decreasing its metabolism. Monitor for changes in the therapeutic and adverse effects of nortriptyline if cimetidine is initiated, discontinued or dose changed.
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Cisapride
Increased risk of cardiotoxicity and arrhythmias
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Clonidine
The tricyclic antidepressant, nortriptyline, decreases the effect of clonidine.
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Desvenlafaxine
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome.
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Dihydroquinidine barbiturate
Dihydroquinidine barbiturate increases the effect of the tricyclic antidepressant, nortriptyline.
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Dobutamine
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of dobutamine.
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Donepezil
Possible antagonism of action
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Dopamine
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of dopamine.
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Duloxetine
Possible increase in the levels of this agent when used with duloxetine
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Ephedra
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of ephedra.
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Ephedrine
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of ephedrine.
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Epinephrine
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of epinephrine.
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Fenoterol
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of fenoterol.
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Fluconazole
Fluconazole may increase the effect and toxicity of the tricyclic antidepressant, nortriptyline, by decreasing its metabolism. Additive QTc-prolonging effects may also occur. Monitor for changes in the therapeutic and adverse effects of nortriptyline if fluconazole is initiated, discontinued or dose changed. Monitor for the development of torsades de pointes during concomitant therapy.
-
Fluoxetine
The SSRI, fluoxetine, may increase the serum concentration of the tricyclic antidepressant, nortriptyline, by decreasing its metabolism. Additive modulation of serotonin activity also increases the risk of serotonin syndrome. Monitor for development of serotonin syndrome during concomitant therapy. Monitor for changes in the therapeutic and adverse effects of nortriptyline if fluoxetine is initiated, discontinued or dose changed.
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Fluvoxamine
The SSRI, fluvoxamine, may increase the serum concentration of the tricyclic antidepressant, nortriptyline, by decreasing its metabolism. Additive modulation of serotonin activity also increases the risk of serotonin syndrome. Monitor for development of serotonin syndrome during concomitant therapy. Monitor for changes in the therapeutic and adverse effects of nortriptyline if fluvoxamine is initiated, discontinued or dose changed.
-
Galantamine
Possible antagonism of action
-
Grepafloxacin
Increased risk of cardiotoxicity and arrhythmias
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Guanethidine
The tricyclic antidepressant, nortriptyline, decreases the effect of guanethidine.
-
Isocarboxazid
Possibility of severe adverse effects
-
Isoprenaline
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of isoproterenol.
-
Ketoconazole
Ketoconazole, a moderate CYP2D6 inhibitor, may increase the serum concentration of nortriptyline by increasing its metabolism. Monitor for changes in the therapeutic and adverse effects of nortriptyline if ketoconazole is initiated, discontinued or dose changed.
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Lumefantrine
Additive QTc-prolongation may occur. Concomitant therapy should be avoided.
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Mephentermine
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of mephentermine.
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Metaraminol
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of metaraminol.
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Methoxamine
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of methoxamine.
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Moclobemide
Possible severe adverse reaction with this combination
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Norepinephrine
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of norepinephrine.
-
Orciprenaline
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of orciprenaline.
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Phenelzine
Possibility of severe adverse effects
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Phenylephrine
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of phenylephrine.
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Phenylpropanolamine
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of phenylpropanolamine.
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Pirbuterol
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of pirbuterol.
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Procaterol
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of procaterol.
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Pseudoephedrine
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of pseudoephedrine.
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Quinidine
Additive QTc-prolonging effects may occur. Quinidine may also increase the serum concentration of the tricyclic antidepressant, nortriptyline, by decreasing its metabolism. Monitor for changes in the therapeutic and adverse effects of nortriptyline if quinidine is initiated, discontinued or dose changed. Monitor for the development of torsades de pointes during concomitant therapy.
-
Quinidine barbiturate
Quinidine barbiturate increases the effect of the tricyclic antidepressant, nortriptyline.
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Rasagiline
Possibility of severe adverse effects
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Rifabutin
The rifamycin, rifabutin, may decrease the effect of the tricyclic antidepressant, nortriptyline, by increasing its metabolism. Monitor for changes in the therapeutic and adverse effects of nortriptyline if rifabutin is initiated, discontinued or dose changed.
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Rifampicin
The rifamycin, rifampin, may decrease the effect of the tricyclic antidepressant, nortriptyline, by increasing its metabolism. Monitor for changes in the therapeutic and adverse effects of nortriptyline if rifampin is initiated, discontinued or dose changed.
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Ritonavir
Ritonavir may increase the effect and toxicity of the tricyclic antidepressant, nortriptyline, by decreasing its metabolism. Monitor for changes in the therapeutic and adverse effects of nortriptyline if ritonavir if initiated, discontinued or dose changed.
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Rivastigmine
Possible antagonism of action
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Salbutamol
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of salbutamol.
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Sibutramine
Increased risk of CNS adverse effects
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Sparfloxacin
Increased risk of cardiotoxicity and arrhythmias
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Tacrine
The therapeutic effects of the central acetylcholinesterase inhibitor, Tacrine, and/or the anticholinergic, Nortriptyline, may be reduced due to antagonism. The interaction may be beneficial when the anticholinergic action is a side effect. Monitor for decreased efficacy of both agents.
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Tacrolimus
Additive QTc-prolongation may occur increasing the risk of serious ventricular arrhythmias. Concomitant therapy should be used with caution.
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Terbinafine
Terbinafine may increase the effect and toxicity of the tricyclic antidepressant, nortriptyline, by decreasing its metabolism. Monitor for changes in the therapeutic and adverse effects of nortriptyline if terbinafine is initiated, discontinued or dose changed.
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Terbutaline
The tricyclic antidepressant, nortriptyline, increases the sympathomimetic effect of terbutaline.
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Terfenadine
Increased risk of cardiotoxicity and arrhythmias
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Thiothixene
May cause additive QTc-prolonging effects. Increased risk of ventricular arrhythmias. Consider alternate therapy. Thorough risk:benefit assessment is required prior to co-administration.
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Toremifene
Additive QTc-prolongation may occur, increasing the risk of serious ventricular arrhythmias. Consider alternate therapy. A thorough risk:benefit assessment is required prior to co-administration.
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Tramadol
Tramadol increases the risk of serotonin syndrome and seizures.
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Tranylcypromine
Increased risk of serotonin syndrome. Concomitant therapy should be avoided. A significant washout period, dependent on the half-lives of the agents, should be employed between therapies.
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Trazodone
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome.
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Trimethobenzamide
Trimethobenzamide and Nortriptyline, two anticholinergics, may cause additive anticholinergic effects and enhance their adverse/toxic effects. Monitor for enhanced anticholinergic effects.
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Trimipramine
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome. Additive QTc-prolongation may also occur, increasing the risk of serious ventricular arrhythmias. Concomitant therapy should be used with caution.
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Triprolidine
Triprolidine and Nortriptyline, two anticholinergics, may cause additive anticholinergic effects and enhance their adverse/toxic effects. Additive CNS depressant effects may also occur. Monitor for enhanced anticholinergic and CNS depressant effects.
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Trospium
Trospium and Nortriptyline, two anticholinergics, may cause additive anticholinergic effects and enhanced adverse/toxic effects. Monitor for enhanced anticholinergic effects.
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Venlafaxine
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome.
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Vilazodone
Monitor for toxic effects of tricyclic antidepressants if a selective serotonin reuptake inhibitor (SSRI) is initiated or the dose is increased. The influence of the SSRI may take several days or weeks to be fully realized or resolved.
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Voriconazole
Additive QTc prolongation may occur. Consider alternate therapy or monitor for QTc prolongation as this can lead to Torsade de Pointes (TdP).
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Vorinostat
Additive QTc prolongation may occur. Consider alternate therapy or monitor for QTc prolongation as this can lead to Torsade de Pointes (TdP).
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Ziprasidone
Additive QTc-prolonging effects may increase the risk of severe arrhythmias. Concomitant therapy is contraindicated.
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Zolmitriptan
Use of two serotonin modulators, such as zolmitriptan and nortriptyline, increases the risk of serotonin syndrome. Consider alternate therapy or monitor for serotonin syndrome during concomitant therapy.
-
Zuclopenthixol
Additive QTc prolongation may occur. Consider alternate therapy or use caution and monitor for QTc prolongation as this can lead to Torsade de Pointes (TdP).
Liều Lượng & Cách Dùng :
Capsule - Oral - 10 mg
Capsule - Oral - 25 mg
Capsule - Oral - 50 mg
Capsule - Oral - 75 mg
Solution - Oral - 10 mg/5 ml
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Nhà Sản Xuất
-
Sản phẩm biệt dược : Allegron
-
Sản phẩm biệt dược : Aventyl
-
Sản phẩm biệt dược : Noritren
-
Sản phẩm biệt dược : Norpress
-
Sản phẩm biệt dược : Nortrilen
-
Sản phẩm biệt dược : Pamelor
-
Sản phẩm biệt dược : Sensoval
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