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What the FDA labels say about taking them together

Colesevelam and glimepiride

Colesevelam's FDA label of December 28, 2023 names glimepiride in its drug interactions section, and glimepiride's label names colesevelam too. The colesevelam label: “In vivo drug interactions studies showed a decrease in sulfonylureas when coadministered with colesevelam hydrochloride.”

Check it at the source: the colesevelam FDA label on DailyMed (effective December 28, 2023, A-S Medication Solutions); the glimepiride FDA label on DailyMed (effective May 12, 2025, Micro Labs Limited).

What does the colesevelam label say about glimepiride?

Colesevelam label, drug interactions

Sulfonylureas Clinical Impact: In vivo drug interactions studies showed a decrease in sulfonylureas when coadministered with colesevelam hydrochloride. Intervention: Administer sulfonylureas 4 hours prior to colesevelam hydrochloride. Examples: Glimepiride, glipizide, and glyburide

Source: FDA drug label (COLESEVELAM HYDROCHLORIDE), NDA021176 (Cosette), as published by A-S Medication Solutions, effective December 28, 2023 (SPL set 0127afae-8d8d-43f2-97f9-4f99f6947e81), via openFDA; the full label on DailyMed

What does the glimepiride label say about colesevelam?

Glimepiride label, drug interactions

Glimepiride should be administered at least 4 hours prior to colesevelam.

Source: FDA drug label (Glimepiride), Micro Labs Limited, effective May 12, 2025 (SPL set 60e9397e-83b9-489e-9683-6f87e458bbaa), 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

15Colesevelam generic labelers
27Glimepiride generic labelers
ColesevelamGlimepiride
Labeled forHigh cholesterol, Type 2 diabetesType 2 diabetes
Boxed warningNoNo
Pharmacy cost (NADAC)$0.262 per tablet 625 mg tablet$0.0507 per tablet 4 mg 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)

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