Product Information
GS ALLERGY (DIPHEN) 25 MG TAB is a generic product labeled by L. Perrigo Company, priced at $0.0366 per EA under NDC 00113047978. Its NADAC has been published 657 times since Nov 28, 2013.
Strength
25 mg/1
Manufacturer
L. Perrigo CompanyNDC
00113047978
Classification
Generic
Dosage Form
TABLET
Route
ORAL
Last Updated
6/17/2026
Active Ingredients
DIPHENHYDRAMINE HYDROCHLORIDEApproval Type
OTC MONOGRAPH DRUG
FDA Application
M012On Market Since
8/20/1991
Pharmacological Classes
Price Statistics
The NADAC for GS ALLERGY (DIPHEN) 25 MG TAB has been published 657 times since Nov 28, 2013, and over the history we have for it it has declined 3.0%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.0366 per EA |
|---|---|
| All-time high | $0.0429 (Oct 12, 2016) |
| All-time low | $0.0270 (Jan 17, 2018) |
| 52-week high | $0.0384 |
| 52-week low | $0.0316 |
| Median price | $0.0356 |
| Average price | $0.0353 |
| Largest weekly change | -15.9% (May 22, 2024) |
| Weeks tracked | 657 |
| Tracking since | Nov 28, 2013 |
Generic Alternatives
The matcher finds 9 NADAC-published products sharing this drug's active ingredient, strength, and dosage form across 9 manufacturers (up to 10 shown below). None of the shown alternatives sit below the current price. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
Frequently asked questions
What is the NADAC price of GS ALLERGY (DIPHEN) 25 MG TAB?
The current National Average Drug Acquisition Cost (NADAC) for GS ALLERGY (DIPHEN) 25 MG TAB, manufactured by L. Perrigo Company, is $0.0366 per EA (NDC 00113047978), effective Jun 24, 2026.
How has the price of GS ALLERGY (DIPHEN) 25 MG TAB changed over time?
Over the history we have for it, the NADAC for GS ALLERGY (DIPHEN) 25 MG TAB has declined 3.0%. It has been tracked across 657 weekly CMS publications since Nov 28, 2013.
What are the highest and lowest recorded NADAC prices for GS ALLERGY (DIPHEN) 25 MG TAB?
Since Nov 28, 2013, the NADAC for GS ALLERGY (DIPHEN) 25 MG TAB has ranged from a low of $0.0270 (Jan 17, 2018) to a high of $0.0429 (Oct 12, 2016), with a median of $0.0356 per EA.
Are there cheaper alternatives to GS ALLERGY (DIPHEN) 25 MG TAB?
9 NADAC-published products share the same active ingredient, strength, and dosage form as GS ALLERGY (DIPHEN) 25 MG TAB, but none are currently priced below it.
Who manufactures GS ALLERGY (DIPHEN) 25 MG TAB?
GS ALLERGY (DIPHEN) 25 MG TAB (NDC 00113047978) is labeled by L. Perrigo Company, and CMS classifies it as a generic product.
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