What the FDA labels say about taking them together
Meperidine and vilazodone
Vilazodone's FDA label of May 22, 2024 names meperidine in its warnings and precautions section; the meperidine labels PlainMeds reads (2) do not name vilazodone. The vilazodone label: “The risk is increased with concomitant use of other serotonergic drugs and with drugs that impair metabolism of serotonin, i.e., MAOIs.”
Check it at the source: the meperidine FDA label on DailyMed (effective November 29, 2025, EPIC PHARMA, LLC); the vilazodone FDA label on DailyMed (effective May 22, 2024, Teva Pharmaceuticals, Inc.).
What does the meperidine label say about vilazodone?
Meperidine's label (effective November 29, 2025) and its 1 other brand-application label 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 (Meperidine Hydrochloride), EPIC PHARMA, LLC, effective November 29, 2025 (SPL set fae5cc34-5917-4445-9516-25f97ffca8db), via openFDA; the full label on DailyMed
What does the vilazodone label say about meperidine?
Vilazodone label, warnings and precautionsThe risk is increased with concomitant use of other serotonergic drugs (including triptans, tricyclic antidepressants, fentanyl, meperidine, methadone, lithium, tramadol, tryptophan, buspirone, amphetamines, and St. John’s Wort) and with drugs that impair metabolism of serotonin, i.e., MAOIs [see Contraindications ( 4 ) and Drug Interactions ( 7 )].
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
| Meperidine | Vilazodone | |
|---|---|---|
| Labeled for | Pain | Depression |
| Boxed warning | Yes | Yes |
| Pharmacy cost (NADAC) | $0.157 per mL 50 mg/5 mL solution | $0.732 per tablet 10 mg tablet |
| Shortage now | Listed; available | No 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?
- Check more medicines together
- up to five at once