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Kirkland Ultra Stregth Antacid 171AB

NDC 63981-171 · COSTCO WHOLESALE COMPANY

Generic nameCalcium carbonate
Dosage formTABLET
RouteORAL
Active ingredient(s)CALCIUM CARBONATE
Strength1000 mg/1
Pharmacologic classBlood Coagulation Factor [EPC], Calcium [CS], Cations, Divalent [CS], Increased Coagulation Factor Activity [PE], Phosphate Binder [EPC], Phosphate Chelating Activity [MoA]
Marketing categoryOTC MONOGRAPH DRUG

Packages

63981-171-80 — 265 TABLET in 1 BOTTLE (63981-171-80)

Related Codes

Same active ingredient

FDA lists these products with the same active ingredient.

63868-703 — Calcium Carbonate, 63941-010 — Calcium Carbonate, 63941-021 — Calcium Carbonate, 63941-022 — Calcium carbonate, 63941-031 — Antacid Tablets (Calcium Carbonate), 63941-071 — Calcium Carbonate ,Magnesium Hydroxide, 63941-101 — Calcium Carbonate, 63941-107 — Calcium carbonate ,Magnesium hydroxide,Simethicone, 63941-115 — Smooth Antacid Tablets, 63941-624 — calcium carbonate, magnesium hydroxide, 66715-6355 — Calcium Carbonate 750 mg, 66715-6422 — Famotidine, Calcium Carbonate, Magnesium Hydroxide Chewable Tablet, 66715-6522 — Famotidine, Calcium Carbonate, Magnesium Hydroxide Chewable Tablet, 66715-7822 — Famotidine, Calcium Carbonate, Magnesium Hydroxide Chewable Tablet, 66715-8151 — Calcium Carbonate 750 mg, 66715-8553 — Calcium Carbonate 750 mg, 66715-9822 — Famotidine, Calcium Carbonate, Magnesium Hydroxide Chewable Tablet, 67091-356 — Calcium Carbonate, 67091-357 — Calcium Carbonate, 67091-358 — Calcium carbonate, +648 more

From the FDA National Drug Code Directory, retrieved August 24, 2026. Product listings are submitted by labelers; FDA does not verify them.

Read from: FDA National Drug Code Directory, product.txt and package.txt (accessdata.fda.gov/cder/ndctext.zip) — Snapshot retrieved 2026-08-24, loaded 2026-08-24; CMS Medicare Part B Drug Average Sales Price (ASP) Pricing Files (cms.gov/medicare/payment/part-b-drugs/asp-pricing-files) -- the NDC-HCPCS crosswalk and Part B payment limit files — 2026 Q3 (July 2026 release). All data sources · How to read the labels