VILAZODONE HYDROCHLORIDE

Vilazodone activity is due primarily to the parent drug. The pharmacokinetics of vilazodone (5 mg to 80 mg) are dose-proportional. Accumulation of vilazodone after administration of single vilazodone hydrochloride tablet doses did not vary with dose, and steady-state was achieved in about 3 days. Elimination of vilazodone is primarily by hepatic metabolism with a terminal half-life of approximately 25 hours. At steady-state, after daily dosing of vilazodone hydrochloride tablets 40 mg under fed ...

The efficacy of vilazodone hydrochloride tablets as a treatment for major depressive disorder was demonstrated in four multicenter, randomized, double-blind, placebo-controlled studies in adult (18 to 70 years of age) outpatients who met the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR) criteria for MDD. Three 8-week studies evaluated the efficacy of vilazodone hydrochloride tablets 40 mg (Studies 1 to 3) and one 10-week study (Study 4) evaluated the efficacy of vilazodone hydrochloride tablets 20 mg and 40 mg (see Table 5). In these studies, patients were randomized to eit...

The following adverse reactions are discussed in greater detail in other sections of the labeling:

• Suicidal Thoughts and Behaviors in Adolescents and Young Adults [see Warnings and Precautions (5.1)].
• Serotonin Syndrome [see Warnings and Precautions (5.2)].
• Increased Risk of Bleeding [see Warnings and Precautions (5.3)].
• Activation of Mania or Hypomania [see Warnings and Precautions (5.4)].
• Discontinuation Syndrome [see Warnings and Precautions (5.5)].
• Seizures [see Warnings and Prec...

Vilazodone hydrochloride tablets are contraindicated in:

• Patients taking, or within 14 days of stopping, monoamine oxidase inhibitors (MAOIs), including MAOIs such as linezolid or intravenous methylene blue, because of an increased risk of serotonin syndrome [see Warnings and Precautions (5.2), Drug Interactions (7)].
• Concomitant use of monoamine oxidase inhibitors (MAOIs), or use within 14 da...

• Serotonin Syndrome: Increased risk when co-administered with other serotonergic agents (e.g., SSRI, SNRI, triptans, amphetamines), but also when taken alone. If it occurs, discontinue vilazodone hydrochloride tablets and initiate supportive treatment (5.2).
• Increased Risk of Bleeding: Concomitant use of aspirin, nonsteroidal anti-inflammatory drugs (NSAIDs), other antiplatelet drugs, warfarin, and other anticoagulants may increase this risk (5.3).
• Activation of Mania/Hypomania: Screen pati...

7 DRUG INTERACTIONS

• CYP3A4 Inhibitors: The vilazodone hydrochloride tablet dose should not exceed 20 mg once daily when co-administered with strong CYP3A4 inhibitors (2.4, 7).
• CYP3A4 Inducers: Consider increasing vilazodone hydrochloride tablets dosage by 2-fold, up to 80 mg once-daily over 1 to 2 weeks when used concomitantly with strong CYP3A4 inducers for greater than 14 days (2.4, 7). 7.1 Dr...