What the FDA labels say about taking them together
Atropine and thioridazine
Thioridazine's FDA label of November 11, 2025 names atropine in its warnings section; the atropine labels PlainMeds reads (4) do not name thioridazine.
Check it at the source: the atropine FDA label on DailyMed (effective May 18, 2026, Hospira, Inc.); the thioridazine FDA label on DailyMed (effective November 11, 2025, Mylan Institutional Inc.).
What does the atropine label say about thioridazine?
Atropine's label (effective May 18, 2026) and its 3 other brand-application labels do not name thioridazine in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Atropine Sulfate), Hospira, Inc., effective May 18, 2026 (SPL set ad8916e7-206e-409e-2582-30d072845dd4), via openFDA; the full label on DailyMed
What does the thioridazine label say about atropine?
Thioridazine label, warningsAttention should be paid to the fact that phenothiazines are capable of potentiating central nervous system depressants (e.g., anesthetics, opiates, alcohol, etc.) as well as atropine and phosphorus insecticides.
Source: FDA drug label (Thioridazine Hydrochloride), Mylan Institutional Inc., effective November 11, 2025 (SPL set 52fea941-0b47-41c1-b00d-f88150e8ab93), 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
| Atropine | Thioridazine | |
|---|---|---|
| Labeled for | n/a | n/a |
| Boxed warning | No | Yes |
| Pharmacy cost (NADAC) | $7.74 per mL 1% eye drops | $0.571 per tablet 25 mg tablet |
| Shortage now | In shortage | 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