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Medi-First Antacid

NDC 47682-820 · Unifirst First Aid Corporation

Generic namecalcium carbonate
Dosage formTABLET, CHEWABLE
RouteORAL
Active ingredient(s)CALCIUM CARBONATE
Strength420 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

47682-820-13 — 250 PACKET in 1 BOX (47682-820-13) / 2 TABLET, CHEWABLE in 1 PACKET (47682-820-99)

47682-820-33 — 50 PACKET in 1 BOX (47682-820-33) / 2 TABLET, CHEWABLE in 1 PACKET (47682-820-99)

47682-820-48 — 125 PACKET in 1 BOX (47682-820-48) / 2 TABLET, CHEWABLE in 1 PACKET (47682-820-99)

47682-820-50 — 25 PACKET in 1 BOX (47682-820-50) / 2 TABLET, CHEWABLE in 1 PACKET (47682-820-99)

47682-820-99 — 2 TABLET, CHEWABLE in 1 PACKET (47682-820-99)

Related Codes

Same active ingredient

FDA lists these products with the same active ingredient.

42507-921 — Calcium Carbonate, 42681-0004 — Antacid Tablets, 42681-0028 — Calcium Carbonate, 42681-0029 — Calcium Carbonate, 42961-208 — Calcium Carbonate, 46122-007 — Calcium carbonate, 46122-225 — Calcium carbonate, 46122-345 — famotidine, calcium carbonate and magnesium hydroxide, 47682-201 — calcium carbonate, 47682-285 — calcium carbonate, 47682-850 — Calcium Carbonate 750 mg, 47682-920 — calcium carbonate, 48433-106 — Calcium Carbonate, 48951-8006 — Pandanus Calc. carb., 49035-046 — calcium carbonate, 49035-048 — Calcium Carbonate, 49035-058 — Calcium Carbonate, 49035-101 — Antacid Tablets, 49035-167 — Calcium Carbonate, 49035-321 — famotidine, calcium carbonate and magnesium hydroxide, +648 more

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