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What the FDA labels say about taking them together

Ciprofloxacin and sucralfate

Ciprofloxacin's FDA label of March 2, 2026 names sucralfate in its drug interactions section, and sucralfate's label names ciprofloxacin too. The ciprofloxacin label: “Antacids, Sucralfate, Multivitamins and Other Products Containing Multivalent Cations; CIPRO should be taken at least two hours before or six hours after Multivalent cation-containing products administration.; …”

Check it at the source: the ciprofloxacin FDA label on DailyMed (effective March 2, 2026, Bayer HealthCare Pharmaceuticals Inc.); the sucralfate FDA label on DailyMed (effective September 2, 2026, Preferred Pharmaceuticals Inc.).

What does the ciprofloxacin label say about sucralfate?

Ciprofloxacin label, drug interactions

Antacids, Sucralfate, Multivitamins and Other Products Containing Multivalent Cations (magnesium/aluminum antacids; polymeric phosphate binders (for example, sevelamer, lanthanum carbonate); sucralfate; Videx ® (didanosine) chewable/buffered tablets or pediatric powder; other highly buffered drugs; or products containing calcium, iron, or zinc and dairy products); CIPRO should be taken at least two hours before or six hours after Multivalent cation-containing products administration [see Dosage and Administration ()].; Decrease CIPRO absorption, resulting in lower serum and urine levels

Source: FDA drug label (Cipro), Bayer HealthCare Pharmaceuticals Inc., effective March 2, 2026 (SPL set 888dc7f9-ad9c-4c00-8d50-8ddfd9bd27c0), via openFDA; the full label on DailyMed

What does the sucralfate label say about ciprofloxacin?

Sucralfate label, drug interactions

In all case studies to date (cimetidine, ciprofloxacin, digoxin, norfloxacin, ofloxacin, and ranitidine), dosing the concomitant medication 2 hours before sucralfate eliminated the interaction.

Source: FDA drug label (Sucralfate, NDA019183), Pacific Pharma, Inc., effective February 10, 2024 (SPL set 7407c58e-766f-4e93-a1bb-c77892ae0174), via openFDA

Source: FDA drug label (Sucralfate), NDA018333 (Abbvie), as published by Preferred Pharmaceuticals Inc., effective September 2, 2026 (SPL set 536b8c00-13ab-4397-a754-63a1c92bf883), 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

54Ciprofloxacin generic labelers
43Sucralfate generic labelers
CiprofloxacinSucralfate
Labeled forDiarrhea, Urinary tract infections, Bacterial infectionsAcid reflux and ulcers
Boxed warningYesNo
Pharmacy cost (NADAC)$0.123 per tablet 500 mg tablet$0.173 per tablet 1 g tablet
Shortage nowNo current entryNo 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?