What the FDA labels say about taking them together
Cilostazol and clarithromycin
Clarithromycin's FDA label of April 9, 2026 names cilostazol in its drug interactions section; the cilostazol label PlainMeds reads does not name clarithromycin.
Check it at the source: the cilostazol FDA label on DailyMed (effective September 10, 2026, Apotex Corp.); the clarithromycin FDA label on DailyMed (effective April 9, 2026, Solaris Pharma Corporation).
What does the cilostazol label say about clarithromycin?
Cilostazol's label (effective September 10, 2026) does not name clarithromycin in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (cilostazol), Apotex Corp., effective September 10, 2026 (SPL set ceac1ae3-c343-28ca-c083-b748d21a15e6), via openFDA; the full label on DailyMed
What does the clarithromycin label say about cilostazol?
Clarithromycin label, drug interactionsOther Drugs Metabolized by CYP3A: Alfentanil Bromocriptine Cilostazol Methylprednisole Vinblastine Phenobarbital St. John’s Wort Use With Caution There have been spontaneous or published reports of CYP3A based interactions of clarithromycin with alfentanil, methylprednisolone, cilostazol, bromocriptine, vinblastine, phenobarbital, and St. John’s Wort.
Source: FDA drug label (Clarithromycin), Solaris Pharma Corporation, effective April 9, 2026 (SPL set 4d42821d-ce7a-7d64-e063-6294a90a0875), 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
| Cilostazol | Clarithromycin | |
|---|---|---|
| Labeled for | n/a | Bacterial infections, Acid reflux and ulcers |
| Boxed warning | Yes | No |
| Pharmacy cost (NADAC) | $0.132 per tablet 100 mg tablet | $0.466 per tablet 500 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