What the FDA labels say about taking them together
Chloroquine and remdesivir
Remdesivir's FDA label of July 29, 2026 names chloroquine in its drug interactions section; the chloroquine label PlainMeds reads does not name remdesivir. The remdesivir label: “Discontinue VEKLURY if ALT elevation is accompanied by signs or symptoms of liver inflammation. Risk of reduced antiviral activity when coadministered with chloroquine phosphate or hydroxychloroquine sulfate:”
Check it at the source: the chloroquine FDA label on DailyMed (effective July 2, 2026, Rising Pharma Holdings, Inc.); the remdesivir FDA label on DailyMed (effective July 29, 2026, Gilead Sciences, Inc.).
What does the chloroquine label say about remdesivir?
Chloroquine's label (effective July 2, 2026) does not name remdesivir in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Chloroquine Phosphate), Rising Pharma Holdings, Inc., effective July 2, 2026 (SPL set 06c69e2b-211b-4746-9f3a-f86d36520570), via openFDA; the full label on DailyMed
What does the remdesivir label say about chloroquine?
Remdesivir label, drug interactionsDRUG INTERACTIONS 7.1 Effects of Other Drugs on VEKLURY Due to potential antagonism based on data from cell culture experiments, concomitant use of VEKLURY with chloroquine phosphate or hydroxychloroquine sulfate is not recommended [see Warnings and Precautions (5.3) and Microbiology (12.4) ].
Remdesivir label, warnings and precautionsDiscontinue VEKLURY if ALT elevation is accompanied by signs or symptoms of liver inflammation. ( 5.2 ) Risk of reduced antiviral activity when coadministered with chloroquine phosphate or hydroxychloroquine sulfate:
Source: FDA drug label (Veklury), Gilead Sciences, Inc., effective July 29, 2026 (SPL set c0978fa8-53ff-4ca2-82a7-567fd3e958ca), 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
| Chloroquine | Remdesivir | |
|---|---|---|
| Labeled for | n/a | COVID-19 |
| Boxed warning | No | No |
| Pharmacy cost (NADAC) | $6.65 per tablet 500 mg tablet | 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