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What the FDA labels say about taking them together

Digoxin and vilazodone

Vilazodone's FDA label of May 22, 2024 names digoxin in its drug interactions section; the digoxin labels PlainMeds reads (3) do not name vilazodone. The vilazodone label: “Concomitant use of VIIBRYD increased digoxin concentrations.”

Check it at the source: the digoxin FDA label on DailyMed (effective December 5, 2024, Advanz Pharma (US) Corp.); the vilazodone FDA label on DailyMed (effective May 22, 2024, Teva Pharmaceuticals, Inc.).

What does the digoxin label say about vilazodone?

Digoxin's label (effective December 5, 2024) and its 2 other brand-application labels do not name vilazodone in these sections. A label lists what its studies and reports found; it is not a complete list.

Source: FDA drug label (LANOXIN), Advanz Pharma (US) Corp., effective December 5, 2024 (SPL set d91e3646-4c63-4512-ab22-db39c085c4dc), via openFDA; the full label on DailyMed

What does the vilazodone label say about digoxin?

Vilazodone label, drug interactions

Concomitant use of vilazodone hydrochloride increased digoxin concentrations [see Clinical Pharmacology ( 12.3 )].

Source: FDA drug label (Viibryd, NDA022567), Allergan, Inc., effective October 1, 2023 (SPL set 4c55ccfb-c4cf-11df-851a-0800200c9a66), via openFDA

Source: FDA drug label (Vilazodone Hydrochloride), Teva Pharmaceuticals, Inc., effective May 22, 2024 (SPL set 3a4745a0-de23-4b40-923e-0d7dfe6b8634), via openFDA; the full label on DailyMed

These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.

Both medicines on the record

26Digoxin generic labelers
12Vilazodone generic labelers
DigoxinVilazodone
Labeled forHeart failure, Atrial fibrillationDepression
Boxed warningNoYes
Pharmacy cost (NADAC)$0.133 per tablet 125 mcg tablet$0.732 per tablet 10 mg tablet
Shortage nowNo current entryNo current entry

Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)

What next?