"What are antidepressants and how do they work?
Antidepressants are a class of drugs that reduce symptoms of depressive disorders by correcting chemical imbalances of neurotransmitters in the brain. Chemical imbalances may be respo"...
Pamelor™ (nortriptyline HCl) is indicated for the relief of symptoms of depression. Endogenous depressions are more likely to be alleviated than are other depressive states.
DOSAGE AND ADMINISTRATION
Pamelor is not recommended for children.
Pamelor is administered orally in the form oforal solution.. 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 Pamelor. Conversely, at least 14 days should be allowed after stopping Pamelor before starting an MAOI intended to treat psychiatric disorders (see CONTRAINDICATIONS).
Use Of Pamelor With Other MAOIs, Such As Linezolid Or Methylene Blue
Do not start Pamelor in a patient who is being treated with linezolid or intravenous methylene blue because there is increased risk of serotonin syndrome. In a patient who requires more urgent treatment of a psychiatric condition, other interventions, including hospitalization, should be considered (see CONTRAINDICATIONS).
In some cases, a patient already receiving Pamelor therapy may require urgent treatment with linezolid or intravenous methylene blue. If acceptable alternatives to linezolid or intravenous methylene blue treatment are not available and the potential benefits of linezolid or intravenous methylene blue treatment are judged to outweigh the risks of serotonin syndrome in a particular patient, Pamelor should be stopped promptly, and linezolid or intravenous methylene blue can be administered. The patient should be monitored for symptoms of serotonin syndrome for two weeks or until 24 hours after the last dose of linezolid or intravenous methylene blue, whichever comes first. Therapy with Pamelor may be resumed 24 hours after the last dose of linezolid or intravenous methylene blue (see WARNINGS).
The risk of administering methylene blue by non-intravenous routes (such as oral tablets or by local injection) or in intravenous doses much lower than 1 mg/kg with Pamelor is unclear. The clinician should, nevertheless, be aware of the possibility of emergent symptoms of serotonin syndrome with such use (see WARNINGS).
Pamelor™ (nortriptyline HCl) Oral Solution USP
Pamelor™ (nortriptyline HCl) oral solution USP, equivalent to 10 mg base per 5 mL, is supplied in 16-fluid-ounce bottles (NDC 0406-9918-16). Alcohol content 4%.
Store And Dispense
Store at 20° to 25°C (68° to 77°F) [see USP Controlled Room Temperature].
Dispense in tight, light-resistant container.
Manufactured by: Novartis Consumer Health, Inc. Lincoln, Nebraska 68517. Manufactured for: Mallinckrodt Inc. Hazelwood, MO 63042 USA. Revised: May 2014
Last reviewed on RxList: 7/24/2014
This monograph has been modified to include the generic and brand name in many instances.
Additional Pamelor Information
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