What the FDA labels say about taking them together
Carbachol and cyclopentolate
Cyclopentolate's FDA label of June 25, 2024 names carbachol in its drug interactions section; the carbachol label PlainMeds reads does not name cyclopentolate.
Check it at the source: the carbachol FDA label on DailyMed (effective February 10, 2023, Alcon Laboratories, Inc.); the cyclopentolate FDA label on DailyMed (effective June 25, 2024, Alcon Laboratories, Inc.).
What does the carbachol label say about cyclopentolate?
Carbachol's label (effective February 10, 2023) does not name cyclopentolate in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (MIOSTAT), Alcon Laboratories, Inc., effective February 10, 2023 (SPL set f28d7a56-e079-4a8b-ad81-9a97c780de67), via openFDA; the full label on DailyMed
What does the cyclopentolate label say about carbachol?
Cyclopentolate label, drug interactionsDrug Interactions: Cyclopentolate may interfere with the ocular anti-hypertensive action of carbachol, pilocarpine, or ophthalmic cholinesterase inhibitors.
Source: FDA drug label (Cyclogyl), Alcon Laboratories, Inc., effective June 25, 2024 (SPL set 1d008c76-7210-4ace-90fa-7cd22762e12e), 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
| Carbachol | Cyclopentolate | |
|---|---|---|
| Labeled for | n/a | n/a |
| Boxed warning | No | No |
| Pharmacy cost (NADAC) | n/a | $2.65 per mL 1% eye drops |
| 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