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What the FDA labels say about taking them together

Colestipol and ursodiol

Ursodiol's FDA label of July 31, 2023 names colestipol in its drug interactions section; the colestipol labels PlainMeds reads (3) do not name ursodiol.

Check it at the source: the colestipol FDA label on DailyMed (effective February 19, 2024, Zydus Pharmaceuticals USA Inc.); the ursodiol FDA label on DailyMed (effective July 31, 2023, Actavis Pharma, Inc.).

What does the colestipol label say about ursodiol?

Colestipol's label (effective February 19, 2024) and its 2 other brand-application labels do not name ursodiol in these sections. A label lists what its studies and reports found; it is not a complete list.

Source: FDA drug label (Colestipol hydrochloride), Zydus Pharmaceuticals USA Inc., effective February 19, 2024 (SPL set 71f12e0d-373a-4867-b37c-f24d99c5ce95), via openFDA; the full label on DailyMed

What does the ursodiol label say about colestipol?

Ursodiol label, drug interactions

Drug Interactions Bile acid sequestering agents such as cholestyramine and colestipol may interfere with the action of ursodiol by reducing its absorption.

Source: FDA drug label (Urso 250, NDA020675), Allergan, Inc., effective January 12, 2023 (SPL set e8fc4fc2-fe5c-4cba-b6e0-5ceaf2157a61), via openFDA

Source: FDA drug label (Ursodiol), Actavis Pharma, Inc., effective July 31, 2023 (SPL set a061bb07-a85d-4b08-877f-ce02156f0de7), 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

8Colestipol generic labelers
28Ursodiol generic labelers
ColestipolUrsodiol
Labeled forHigh cholesteroln/a
Boxed warningNoNo
Pharmacy cost (NADAC)$0.658 per tablet 1 g tablet$0.429 per capsule 300 mg capsule
Shortage nowNo current entryA presentation being discontinued

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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