Product Information
CAL-GEST 500 MG TABLET CHEW is a generic product labeled by Rugby Laboratories, priced at $0.0168 per EA under NDC 00536100715. Its NADAC has been published 625 times since Sep 3, 2014.
Strength
500 mg/1
Manufacturer
Rugby LaboratoriesNDC
00536100715
Classification
Generic
Dosage Form
TABLET, CHEWABLE
Route
ORAL
Effective Date
8/19/2026
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 625 times since Sep 3, 2014, and over the history we have for it it has risen 13.5%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.0168 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 | $0.0147 |
| Largest weekly change | +18.7% (Feb 19, 2020) |
| Weeks tracked | 625 |
| Tracking since | Sep 3, 2014 |
Generic Alternatives
The matcher finds 3 manufacturers offering a NADAC-published product with this drug's active ingredient and strength in a comparable dosage form (cheapest from each manufacturer, up to 10 shown below). Switching to the cheapest would cut per-unit acquisition cost by roughly 21% at current NADAC. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
Related Drugs
Same classification
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 $0.0168 per EA (NDC 00536100715), effective Aug 19, 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 13.5%. It has been tracked across 625 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 manufacturers publish a NADAC-priced product with the same active ingredient and strength in a comparable dosage form. The lowest-priced option, QC ANTACID 500 MG CHEW TABLET, is $0.0134 per EA — about 21% 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.