What the FDA labels say about taking them together
Citalopram and thioridazine
Citalopram's FDA label of October 9, 2023 names thioridazine in its warnings and precautions section; the thioridazine label PlainMeds reads does not name citalopram.
Check it at the source: the citalopram FDA label on DailyMed (effective October 9, 2023, Allergan, Inc.); the thioridazine FDA label on DailyMed (effective November 11, 2025, Mylan Institutional Inc.).
What does the citalopram label say about thioridazine?
Citalopram label, warnings and precautionsSuch drugs include Class 1A (e.g., quinidine, procainamide) or Class III (e.g., amiodarone, sotalol) antiarrhythmic medications, antipsychotic medications (e.g., chlorpromazine, thioridazine), antibiotics (e.g., gatifloxacin, moxifloxacin), or any other class of medications known to prolong the QTc interval (e.g., pentamidine, levomethadyl acetate, methadone).
Source: FDA drug label (Celexa), NDA020822 (Abbvie), as published by Allergan, Inc., effective October 9, 2023 (SPL set 4259d9b1-de34-43a4-85a8-41dd214e9177), via openFDA; the full label on DailyMed
What does the thioridazine label say about citalopram?
Thioridazine's label (effective November 11, 2025) does not name citalopram in these sections. A label lists what its studies and reports found; it is not a complete list.
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
| Citalopram | Thioridazine | |
|---|---|---|
| Labeled for | Depression | n/a |
| Boxed warning | Yes | Yes |
| Pharmacy cost (NADAC) | $0.026 per tablet 10 mg tablet | $0.571 per tablet 25 mg tablet |
| 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