Product Information
CAL-GEST 500 MG TABLET CHEW is a generic product labeled by Rugby Laboratories, priced at $0.0175 per EA under NDC 00536100715. Its NADAC has been published 617 times since Sep 3, 2014.
Strength
500 mg/1
Manufacturer
Rugby LaboratoriesNDC
00536100715
Classification
Generic
Dosage Form
TABLET, CHEWABLE
Route
ORAL
Last Updated
6/17/2026
Active Ingredients
CALCIUM CARBONATEApproval Type
OTC MONOGRAPH DRUG
FDA Application
M001On Market Since
10/30/2019
Pharmacological Classes
Price Statistics
The NADAC for CAL-GEST 500 MG TABLET CHEW has been published 617 times since Sep 3, 2014, and over the history we have for it it has risen 18.1%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.0175 per EA |
|---|---|
| All-time high | $0.0175 (Apr 16, 2025) |
| All-time low | $0.0121 (Jul 18, 2018) |
| 52-week high | $0.0175 |
| 52-week low | $0.0168 |
| Median price | $0.0143 |
| Average price | $0.0146 |
| Largest weekly change | +18.7% (Feb 19, 2020) |
| Weeks tracked | 617 |
| Tracking since | Sep 3, 2014 |
Generic Alternatives
The matcher finds 3 NADAC-published products sharing this drug's active ingredient, strength, and dosage form across 3 manufacturers (up to 10 shown below). Switching to the cheapest would cut per-unit acquisition cost by roughly 24% at current NADAC. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
Frequently asked questions
What is the NADAC price of CAL-GEST 500 MG TABLET CHEW?
The current National Average Drug Acquisition Cost (NADAC) for CAL-GEST 500 MG TABLET CHEW, manufactured by Rugby Laboratories, is $0.0175 per EA (NDC 00536100715), effective Jun 24, 2026.
How has the price of CAL-GEST 500 MG TABLET CHEW changed over time?
Over the history we have for it, the NADAC for CAL-GEST 500 MG TABLET CHEW has risen 18.1%. It has been tracked across 617 weekly CMS publications since Sep 3, 2014.
What are the highest and lowest recorded NADAC prices for CAL-GEST 500 MG TABLET CHEW?
Since Sep 3, 2014, the NADAC for CAL-GEST 500 MG TABLET CHEW has ranged from a low of $0.0121 (Jul 18, 2018) to a high of $0.0175 (Apr 16, 2025), with a median of $0.0143 per EA.
Are there cheaper alternatives to CAL-GEST 500 MG TABLET CHEW?
Yes. 3 NADAC-published products share the same active ingredient, strength, and dosage form. The lowest-priced option, QC ANTACID 500 MG CHEW TABLET, is $0.0134 per EA — about 24% below CAL-GEST 500 MG TABLET CHEW.
Who manufactures CAL-GEST 500 MG TABLET CHEW?
CAL-GEST 500 MG TABLET CHEW (NDC 00536100715) is labeled by Rugby Laboratories, and CMS classifies it as a generic product.
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