What the FDA labels say about taking them together
Levodopa and multiple vitamins
Multiple vitamins's FDA label of November 20, 2024 names levodopa in its drug interactions section; the levodopa label PlainMeds reads does not name multiple vitamins. The multiple vitamins label: “Pyridoxine may decrease blood levels of levodopa and levodopa efficacy may decrease”
Check it at the source: the levodopa FDA label on DailyMed (effective July 20, 2026, Merz Pharmaceuticals, LLC); the multiple vitamins FDA label on DailyMed (effective November 20, 2024).
What does the levodopa label say about multiple vitamins?
Levodopa's label (effective July 20, 2026) does not name multiple vitamins in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Inbrija), Merz Pharmaceuticals, LLC, effective July 20, 2026 (SPL set 077c0f39-a3a2-4b2b-a184-09131889dcfb), via openFDA; the full label on DailyMed
What does the multiple vitamins label say about levodopa?
Multiple vitamins label, drug interactionsPyridoxine may decrease blood levels of levodopa and levodopa efficacy may decrease
Source: FDA drug label (Infuvite Pediatric), Sandoz Inc, effective November 20, 2024 (SPL set 6d06546e-8b0a-4490-82d9-397bd902a044), 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
| Levodopa | Multiple vitamins | |
|---|---|---|
| Labeled for | Parkinson's disease | n/a |
| Boxed warning | No | No |
| Pharmacy cost (NADAC) | n/a | n/a |
| Shortage now | No current entry | 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