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Vivactil Dosage

Medically reviewed by Last updated on May 31, 2021.

Dosage form: tablet, film coated

Dosage should be initiated at a low level and increased gradually, noting carefully the clinical response and any evidence of intolerance.
Usual Adult Dosage
Fifteen to 40 mg a day divided into 3 or 4 doses. If necessary, dosage may be increased to 60 mg a day. Dosages above this amount are not recommended. Increases should be made in the morning dose.
Adolescent and Elderly Patients
In general, lower dosages are recommended for these patients. Five mg 3 times a day may be given initially, and increased gradually if necessary. In elderly patients, the cardiovascular system must be monitored closely if the daily dose exceeds 20 mg.
When satisfactory improvement has been reached, dosage should be reduced to the smallest amount that will maintain relief of symptoms.
Minor adverse reactions require reduction in dosage. Major adverse reactions or evidence of hypersensitivity require prompt discontinuation of the drug.
The safety and effectiveness of protriptyline in pediatric patients have not been established.

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