Comparative Pharmacology
Head-to-head clinical analysis: AVENTYL versus PROTRIPTYLINE HYDROCHLORIDE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AVENTYL versus PROTRIPTYLINE HYDROCHLORIDE.
AVENTYL vs PROTRIPTYLINE HYDROCHLORIDE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Nortriptyline, the active ingredient, inhibits the reuptake of norepinephrine and serotonin in the central nervous system, potentiating their effects. It also has anticholinergic and antihistaminergic properties.
Tricyclic antidepressant; inhibits reuptake of norepinephrine and serotonin at presynaptic neuronal membrane, increasing their concentrations in the synaptic cleft. May also downregulate beta-adrenergic and serotonin receptors.
Adults: 25 mg orally 3 to 4 times daily, maximum 150 mg/day.
15 mg orally 3 to 4 times daily, not to exceed 60 mg per day.
None Documented
None Documented
Terminal elimination half-life: 19-24 hours; requires 4-6 days to reach steady state.
Terminal elimination half-life: 54-92 hours (mean ~74 hours); due to long half-life, steady-state is reached in 11-18 days.
Renal (30% as unchanged drug and metabolites); biliary/fecal (70% as metabolites)
Primarily renal (50-70% as metabolites, <5% unchanged); biliary/fecal elimination accounts for ~10-20%.
Category C
Category C
Tricyclic Antidepressant
Tricyclic Antidepressant