pharmacopeia
GET
/api/v1/drug/nortriptyline

Boxed warning

Suicidality and Antidepressant Drugs Antidepressants increased the risk compared to placebo of suicidal thinking and behavior (suicidality) in children, adolescents, and young adults in short-term studies of major depressive disorder (MDD) and other psychiatric disorders. Anyone considering the use of nortriptyline hydrochloride capsules or any other antidepressant in a child, adolescent, or young adult must balance this risk with the clinical need. Short-term studies did not show an increase in the risk of suicidality with antidepressants compared to placebo in adults beyond age 24; there was a reduction in risk with antidepressants compared to placebo in adults aged 65 and older. Depression and certain other psychiatric disorders are themselves associated with increases in the risk of suicide. Patients of all ages who are started on antidepressant therapy should be monitored appropriately and observed closely for clinical worsening, suicidality, or unusual changes in behavior. Families and caregivers should be advised of the need for close observation and communication with the prescriber. Nortriptyline hydrochloride capsules are not approved for use in pediatric patients (see WARNINGS, Clinical Worsening and Suicide Risk; PRECAUTIONS, Information for Patients; and PRECAUTIONS, Pediatric Use).

2D structure
N-methyl-3-(2-tricyclo[9.4.0.03,8]pentadeca-1(15),3,5,7,11,13-hexaenylidene)propan-1-amine
SMILES CNCCC=C1C2=CC=CC=C2CCC3=CC=CC=C31
InChIKey PHVGLTMQBUFIQQ-UHFFFAOYSA-N

Mechanism of action

Sourced from openFDA

Mechanism-of-action classes: Monoamine Oxidase Inhibitors; Norepinephrine Uptake Inhibitors; Serotonin Uptake Inhibitors.

Monoamine OxidaseNorepinephrine UptakeSerotonin Uptake

Indications

Sourced from openFDA
  • Nortriptyline hydrochloride capsules are indicated for the relief of symptoms of depression. Endogenous depressions are more likely to be alleviated than are other depressive states.

Contraindications

Sourced from openFDA
  • Monoamine Oxidase Inhibitors (MAOIs) The use of MAOIs intended to treat psychiatric disorders with nortriptyline hydrochloride or within 14 days of stopping treatment with nortriptyline hydrochloride is contraindicated because of an increased risk of serotonin syndrome. The use of nortriptyline hydrochloride within 14 days of stopping an MAOI intended to treat psychiatric disorders is also contraindicated (see WARNINGS and DOSAGE AND ADMINISTRATION).contraindicated

Dosage & administration

Sourced from openFDA

Nortriptyline hydrochloride is not recommended for children. Nortriptyline hydrochloride is administered orally in the form of capsules. Lower than usual dosages are recommended for elderly patients and adolescents. Lower dosages are also recommended for outpatients than for hospitalized patients who will be under close supervision. The physician should initiate dosage at a low level and increase it gradually, noting carefully the clinical response and any evidence of intolerance. Following remission, maintenance medication may be required for a longer period of time at the lowest dose that will maintain remission. If a patient develops minor side effects, the dosage should be reduced. The drug should be discontinued promptly if adverse effects of a serious nature or allergic manifestations occur. Usual Adult Dose 25 mg three or four times daily; dosage should begin at a low level and be increased as required. As an alternate regimen, the total daily dosage may be given once a day. When doses above 100 mg daily are administered, plasma levels of nortriptyline should be monitored and maintained in the optimum range of 50 to 150 ng/mL. Doses above 150 mg/day are not recommended. Elderly and Adolescent Patients 30 to 50 mg/day, in divided doses, or the total daily dosage may be given once a day. Switching a Patient To or From a Monoamine Oxidase Inhibitor (MAOI) Intended to Treat Psychiatric Disorders At least 14 days should elapse between discontinuation of an MAOI intended to treat psychiatric disorders and initiation of therapy with nortriptyline hydrochloride.

Warnings & precautions

Sourced from openFDA

Clinical Worsening and Suicide Risk Patients with major depressive disorder (MDD), both adult and pediatric, may experience worsening of their depression and/or the emergence of suicidal ideation and behavior (suicidality) or unusual changes in behavior, whether or not they are taking antidepressant medications, and this risk may persist until significant remission occurs. Suicide is a known risk of depression and certain other psychiatric disorders, and these disorders themselves are the strongest predictors of suicide. There has been a long-standing concern, however, that antidepressants may have a role in inducing worsening of depression and the emergence of suicidality in certain patients during the early phases of treatment. Pooled analyses of short-term placebo-controlled trials of antidepressant drugs (SSRIs and others) showed that these drugs increase the risk of suicidal thinking and behavior (suicidality) in children, adolescents, and young adults (ages 18 to 24) with major depressive disorder (MDD) and other psychiatric disorders. Short-term studies did not show an increase in the risk of suicidality with antidepressants compared to placebo in adults beyond age 24; there was a reduction with antidepressants compared to placebo in adults aged 65 and older. The pooled analyses of placebo-controlled trials in children and adolescents with MDD, obsessive compulsive disorder (OCD), or other psychiatric disorders included a total of 24 short-term trials of 9 antidepressant drugs in over 4400 patients.

Adverse reactions

Sourced from openFDA

Note - Included in the following list are a few adverse reactions that have not been reported with this specific drug. However, the pharmacologic similarities among the tricyclic antidepressant drugs require that each of the reactions be considered when nortriptyline is administered. Cardiovascular - Hypotension, hypertension, tachycardia, palpitation, myocardial infarction, arrhythmias, heart block, stroke. Psychiatric - Confusional states (especially in the elderly) with hallucinations, disorientation, delusions; anxiety, restlessness, agitation; insomnia, panic, nightmares; hypomania; exacerbation of psychosis. Neurologic - Numbness, tingling, paresthesias of extremities; incoordination, ataxia, tremors; peripheral neuropathy; extrapyramidal symptoms; seizures, alteration in EEG patterns; tinnitus. Anticholinergic - Dry mouth and, rarely, associated sublingual adenitis; blurred vision, disturbance of accommodation, mydriasis; constipation, paralytic ileus; urinary retention, delayed micturition, dilation of the urinary tract. Allergic - Skin rash, petechiae, urticaria, itching, photosensitization (avoid excessive exposure to sunlight); edema (general or of face and tongue), drug fever, cross-sensitivity with other tricyclic drugs. Hematologic - Bone marrow depression, including agranulocytosis; eosinophilia; purpura; thrombocytopenia. Gastrointestinal - Nausea and vomiting, anorexia, epigastric distress, diarrhea, peculiar taste, stomatitis, abdominal cramps, black-tongue.

Overdosage

Sourced from openFDA

Deaths may occur from overdosage with this class of drugs. Multiple drug ingestion (including alcohol) is common in deliberate tricyclic antidepressant overdose. As the management is complex and changing, it is recommended that the physician contact a poison control center for current information on treatment. Signs and symptoms of toxicity develop rapidly after tricyclic antidepressant overdose, therefore, hospital monitoring is required as soon as possible. Manifestations Critical manifestations 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. Other signs of overdose may include: confusion, restlessness, disturbed concentration, transient visual hallucinations, dilated pupils, agitation, hyperactive reflexes, stupor, drowsiness, muscle rigidity, vomiting, hypothermia, hyperpyrexia, or any of the acute symptoms listed under ADVERSE REACTIONS.

Approval history

Sourced from openFDA
  • Aug 1, 1977NDANDA018013Specgx Llc
  • Mar 30, 1992ANDAANDA073556Dr Reddys Labs Sa
  • Mar 27, 1995ANDAANDA074132Teva
  • May 8, 2000ANDAANDA075520Taro
  • Aug 23, 2000ANDAANDA075606Pharm Assoc
  • Feb 24, 2021ANDAANDA213441Zydus Lifesciences
  • Aug 15, 2023ANDAANDA217731Rubicon Research

FAERS reports

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Reference statistics only. FAERS reports are voluntarily submitted and are not incidence rates, safety signals, or causal evidence. Counts reflect reporting volume — how often a reaction was reported, not how often it occurs. For decision-grade use, consult openFDA and the FAERS Public Dashboard directly.
5,616 total reports matchedLatest report Share = reports listing the reaction ÷ total matched reports. Rows can sum to >100% because a single report often lists multiple reactions.
  1. 1Drug Ineffective81014%
  2. 2Off Label Use74213%
  3. 3Pain71313%
  4. 4Headache69912%
  5. 5Fatigue61411%
  6. 6Nausea5379.6%
  7. 7Hyperhidrosis5169.2%
  8. 8Hypersensitivity4768.5%
  9. 9Drug Hypersensitivity4377.8%
  10. 10Hypertension4127.3%
  11. 11Constipation4107.3%
  12. 12Rheumatoid Arthritis4027.2%
  13. 13Hepatic Enzyme Increased3977.1%
  14. 14Overdose3876.9%
  15. 15Joint Swelling3766.7%

Literature

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Recent PubMed references pinned to Nortriptyline as a MeSH major topic. Citations link to pubmed.ncbi.nlm.nih.gov.

Clinical trials

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The 10 most recently updated of 65 ClinicalTrials.gov registrations naming Nortriptyline as an intervention. Registration is not evidence of efficacy or safety — reference crosswalk only.

Pharmacogenomics

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CPIC-curated drug–gene pairs for Nortriptyline. Levels describe the strength of curated evidence and guideline status — never a recommendation to test or to adjust therapy.

Structural analogs

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Ranked by 2D fingerprint (Tanimoto) similarity over PubChem structures. Structural proximity only — not a claim of therapeutic equivalence.

Frequently asked questions

How does Nortriptyline work?
Mechanism-of-action classes: Monoamine Oxidase Inhibitors; Norepinephrine Uptake Inhibitors; Serotonin Uptake Inhibitors.
What is Nortriptyline used for?
According to FDA labeling, Nortriptyline carries indications including: Nortriptyline hydrochloride capsules are indicated for the relief of symptoms of depression. Endogenous depressions are more likely to be alleviated than are other depressive states.. This is a reference summary of labeled uses, not medical advice or a treatment recommendation.
What class of drug is Nortriptyline?
Nortriptyline is classified as Non-selective monoamine reuptake inhibitors, Tricyclic Antidepressant, Monoamine Oxidase Inhibitors, Norepinephrine Uptake Inhibitors, Serotonin Uptake Inhibitors, Decreased Serotonin Degradation, Increased Central Nervous System Norepinephrine Activity.
What are the brand names for Nortriptyline?
Nortriptyline is marketed under brand names including Pamelor.
What are the contraindications for Nortriptyline?
Nortriptyline labeling lists contraindications including: Monoamine Oxidase Inhibitors (MAOIs) The use of MAOIs intended to treat psychiatric disorders with nortriptyline hydrochloride or within 14 days of stopping treatment with nortriptyline hydrochloride is contraindicated because of an increased risk of serotonin syndrome. The use of nortriptyline hydrochloride within 14 days of stopping an MAOI intended to treat psychiatric disorders is also contraindicated (see WARNINGS and DOSAGE AND ADMINISTRATION).. Always consult the full prescribing information and a clinician.
Note. Data for nortriptyline is illustrative MVP content compiled from public sources. pharmacopeia is for educational and informational use only and is not a substitute for professional medical advice.

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