Diphenhydramine HCL
- Product NDC
- 66424-021
- 11-digit product format
- 664240021
- Labeler code
- 66424
- Product ID
- 66424-021_2ba30474-41ba-6c1a-e063-6394a90a9631
- Type
- HUMAN OTC DRUG
- Nonproprietary name
- Diphenhydramine HCL
- Dosage form
- CAPSULE
- Route
- ORAL
- Labeler
- SDA Laboratories, Inc.
- Application
- M012
- Marketing category
- OTC MONOGRAPH DRUG
- Marketing start
- 2010-01-27
- Substance
- DIPHENHYDRAMINE HYDROCHLORIDE
- Active strength
- 50 mg/1
- Pharmacologic classes
- Histamine H1 Receptor Antagonists [MoA], Histamine-1 Receptor Antagonist [EPC]
- NDC exclude flag
- No
- Listing certified through
- 2026-12-31
- Current FDA listing
- Yes
Observed NDC auxiliary status history#
This history shows the information present in each captured FDA auxiliary file. It is not a continuous regulatory timeline, and a missing record does not establish a status.
| Captured / source date | Dataset | Scope | Package NDC | Code | Status | Snapshot | Source SHA-256 |
|---|---|---|---|---|---|---|---|
| 2025-01-11 03:41 UTC · source 2025-01-10 | excluded product | product | U | Excluded because listing certification expired | 0efc9e666f02… | f202fb6c5f17… | |
| 2025-01-11 03:41 UTC · source 2025-01-10 | excluded package | package | 66424-021-10 | U | Excluded because listing certification expired | 0efc9e666f02… | f202fb6c5f17… |
| 2025-01-11 03:41 UTC · source 2025-01-10 | excluded package | package | 66424-021-01 | U | Excluded because listing certification expired | 0efc9e666f02… | f202fb6c5f17… |
| 2022-08-30 03:57 UTC · source 2022-08-29 | excluded product | product | I | Inactivated by FDA | fb8cb913e6d1… | eb8c232b6be0… | |
| 2022-08-30 03:57 UTC · source 2022-08-29 | excluded package | package | 66424-021-10 | I | Inactivated by FDA | fb8cb913e6d1… | eb8c232b6be0… |
| 2022-08-30 03:57 UTC · source 2022-08-29 | excluded package | package | 66424-021-01 | I | Inactivated by FDA | fb8cb913e6d1… | eb8c232b6be0… |
| 2022-04-09 23:13 UTC · source 2022-04-08 | excluded product | product | I | Inactivated by FDA | 86f5da6cb304… | a595104c45d7… | |
| 2022-04-09 23:13 UTC · source 2022-04-08 | excluded package | package | 66424-021-10 | I | Inactivated by FDA | 86f5da6cb304… | a595104c45d7… |
| 2022-04-09 23:13 UTC · source 2022-04-08 | excluded package | package | 66424-021-01 | I | Inactivated by FDA | 86f5da6cb304… | a595104c45d7… |
| 2022-04-04 05:40 UTC · source 2022-04-01 | excluded product | product | I | Inactivated by FDA | bd6a592717d7… | 303034d00443… | |
| 2022-04-04 05:40 UTC · source 2022-04-01 | excluded package | package | 66424-021-10 | I | Inactivated by FDA | bd6a592717d7… | 303034d00443… |
| 2022-04-04 05:40 UTC · source 2022-04-01 | excluded package | package | 66424-021-01 | I | Inactivated by FDA | bd6a592717d7… | 303034d00443… |
| 2021-12-27 23:28 UTC · source 2021-12-27 | excluded product | product | I | Inactivated by FDA | 8dfbde2a14a4… | c9ff85d89658… | |
| 2021-12-27 23:28 UTC · source 2021-12-27 | excluded package | package | 66424-021-10 | I | Inactivated by FDA | 8dfbde2a14a4… | c9ff85d89658… |
| 2021-12-27 23:28 UTC · source 2021-12-27 | excluded package | package | 66424-021-01 | I | Inactivated by FDA | 8dfbde2a14a4… | c9ff85d89658… |
| 2020-12-18 03:04 UTC · source 2020-12-17 | excluded product | product | I | Inactivated by FDA | e2bbac7714bc… | 27bdfed8d636… | |
| 2020-12-18 03:04 UTC · source 2020-12-17 | excluded package | package | 66424-021-10 | I | Inactivated by FDA | e2bbac7714bc… | 27bdfed8d636… |
| 2020-12-18 03:04 UTC · source 2020-12-17 | excluded package | package | 66424-021-01 | I | Inactivated by FDA | e2bbac7714bc… | 27bdfed8d636… |
| 2020-06-10 20:45 UTC · source 2020-06-10 | excluded product | product | I | Inactivated by FDA | 9bebd1f3094a… | 5416666fcb17… | |
| 2020-06-10 20:45 UTC · source 2020-06-10 | excluded package | package | 66424-021-10 | I | Inactivated by FDA | 9bebd1f3094a… | 5416666fcb17… |
| 2020-06-10 20:45 UTC · source 2020-06-10 | excluded package | package | 66424-021-01 | I | Inactivated by FDA | 9bebd1f3094a… | 5416666fcb17… |
| 2019-12-08 06:16 UTC · source 2019-12-05 | excluded product | product | E | Excluded after deficient or non-compliant submission was not corrected | 110d247fa046… | a55b01930146… | |
| 2019-12-08 06:16 UTC · source 2019-12-05 | excluded package | package | 66424-021-10 | E | Excluded after deficient or non-compliant submission was not corrected | 110d247fa046… | a55b01930146… |
| 2019-12-08 06:16 UTC · source 2019-12-05 | excluded package | package | 66424-021-01 | E | Excluded after deficient or non-compliant submission was not corrected | 110d247fa046… | a55b01930146… |
Reported adverse events (FAERS/openFDA)#
Adverse event summaries are temporarily unavailable. Other product information remains available.
Additional Listing Data#
- Finished product
- Yes
- Brand name base
- Diphenhydramine HCL
- Listing expiration
- 2026-12-31
Active Ingredients#
| Ingredient | Strength |
|---|---|
| DIPHENHYDRAMINE HYDROCHLORIDE | 50 mg/1 |
Harmonized UNII identifiers#
| Identifier | FDA.report destination |
|---|---|
| TC2D6JAD40 | Internal UNII lookup |
Harmonized RxCUI identifiers#
| Identifier | FDA.report destination |
|---|---|
| 1020477 | Internal RxNorm lookup |
Harmonized SPL set identifiers#
| Identifier | FDA.report destination |
|---|---|
| 437e6a13-a4ff-4f98-8973-042f224ee85e | Available on FDA.report |
DailyMed Product Concepts#
| Product concept | Relation | Version | Effective |
|---|---|---|---|
| 0e2e0f88-b076-afe1-4bdd-32bca4375bec | Product name | 3 | 20250127 |
| 3e48c9c4-918d-5d23-2f0b-d2398b06be54 | Product name | 1 | 20140508 |
| 865c72dd-0d94-daac-f728-ddd4ded2a79e | Product name | 1 | 20140508 |
FDA-Initiated Inactive NDC Indexing#
| NDC | Effective | Related label |
|---|---|---|
| 66424-021-01 | 2023-06-13 | Drug Facts |
| 66424-021-10 | 2023-06-13 | Drug Facts |
| 66424-021-01 | 2020-01-31 | Drug Facts |
| 66424-021-10 | 2020-01-31 | Drug Facts |
DailyMed Package Descriptions#
| Package NDC | Product | Description | Form | Quantity | Strength | SPL version |
|---|---|---|---|---|---|---|
| 66424-021-01 | Diphenhydramine HCL | 100 in 1 BOTTLE, PLASTIC | CAPSULE | 100 | 3 | |
| 66424-021-10 | Diphenhydramine HCL | 1000 in 1 BOTTLE, PLASTIC | CAPSULE | 1000 | 3 |
DailyMed Billing Units#
| Package NDC | Billing unit | Product NDC | DailyMed indexing SPL | SPL version | Effective |
|---|---|---|---|---|---|
| 66424-021-01 | EA - Each | 66424-021 | 9776653f-7c63-4b8b-a643-b1ff64504064 | 1 | 2012-07-24 |
| 66424-021-10 | EA - Each | 66424-021 | fa4dd348-3929-4217-a7fb-c7f312f780c8 | 1 | 2012-07-24 |
DailyMed Socrata Ingredients#
DailyMed Dashboard NDC Coverage#
openFDA label cross-check#
OpenFDA label data provides additional search and identifier links. DailyMed’s Structured Product Label is the canonical label on FDA.report. Matching records are deduplicated before they are shown below.
| Brand | Generic | Manufacturer | SPL set ID | Effective date | Available safety fields | Join |
|---|---|---|---|---|---|---|
| Mucinex Childrens FreeFrom Multi-Symptom Cold, Flu and Sore Throat | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, AND PHENYLEPHRINE HYDROCHLORIDE | Reckitt Benckiser LLC | 14c56f3d-67fd-45ef-a16b-f27604722883 | 2026-05-12 | Warnings | M012 |
| ALKA SELTZER COLD Cold Mucus and Congestion Maximum Strength Day Night Fast Gels | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, DOXYLAMINE SUCCINATE, GUAIFENESIN, PHENYLEPHRINE HYDROCHLORIDE | Bayer HealthCare, LLC. | 51a4195b-8776-964c-e063-6294a90aa075 | 2026-05-12 | Warnings | M012 |
| Mucinex Fast-Max Cold and Flu and Mucinex Nighttime Cold and Flu | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, PHENYLEPHRINE HYDROCHLORIDE, AND TRIPROLIDINE HYDROCHLORIDE | Reckitt Benckiser LLC | 3ba3548e-85e7-b4a6-e063-6394a90af84d | 2026-05-12 | Warnings | M012 |
| Maximum Strength Mucinex Fast-Max Cold and Flu | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, AND PHENYLEPHRINE HYDROCHLORIDE | Reckitt Benckiser LLC | fe7eeb71-e219-4c84-ac06-98c3a40b14dc | 2026-05-12 | Warnings | M012 |
| Maximum Strength Mucinex Fast-Max Cold and Flu | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, AND PHENYLEPHRINE HYDROCHLORIDE | Reckitt Benckiser LLC | 6f8241d7-0f30-40b3-926b-861c57079f1d | 2026-05-12 | Warnings | M012 |
| Alka Seltzer COLD Cold Mucus Congestion Maximum Strength Fast Gels | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, PHENYLEPHRINE HYDROCHLORIDE | Bayer HealthCare LLC. | 51a45db8-2bee-6fd0-e063-6394a90ab587 | 2026-05-12 | Warnings | M012 |
| Maximum Strength Mucinex Fast-Max Day Cold and Flu and Night Cold and Flu | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, DOXYLAMINE SUCCINATE, GUAIFENESIN, AND PHENYLEPHRINE HYDROCHLORIDE | Reckitt Benckiser LLC | 19da539e-7b57-41d7-aad5-fc89a6705e20 | 2026-05-12 | Warnings | M012 |
| Maximum Strength Mucinex Fast-Max Cold and Flu | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, PHENYLEPHRINE HYDROCHLORIDE | Reckitt Benckiser LLC | 182222b5-a852-4dbe-b05f-a41d89806021 | 2026-05-12 | Warnings | M012 |
| Maximum Strength Mucinex Fast-Max Cold and Flu | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, AND PHENYLEPHRINE HYDROCHLORIDE | Reckitt Benckiser LLC | 8a790eeb-7d7d-4a94-9103-6ed09c04d596 | 2026-05-12 | Warnings | M012 |
| Mucinex Fast-Max Day Cold and Flu and Mucinex Nightshift Night Severe Cold and Flu Maximum Strength | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, PHENYLEPHRINE HYDROCHLORIDE, AND TRIPROLIDINE HYDROCHLORIDE | Reckitt Benckiser LLC | dbdafbb4-f3c9-4042-b867-db4d06dc3d61 | 2026-05-12 | Warnings | M012 |
| Maximum Strength Mucinex Sinus-Max Pressure, Pain and Cough | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, AND PHENYLEPHRINE HYDROCHLORIDE | Reckitt Benckiser LLC | d03ef2fd-1a08-42c0-b69d-fd4e4285ccd3 | 2026-05-12 | Warnings | M012 |
| Maximum Strength Mucinex Fast-Max Cold and Flu and Mucinex NightShift Severe Cold and Flu | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, PHENYLEPHRINE HYDROCHLORIDE, AND TRIPROLIDINE HYDROCHLORIDE | Reckitt Benckiser LLC | 29571047-4c4b-44ca-8726-57c28308e8cf | 2026-05-12 | Warnings | M012 |
| Maximum Strength Mucinex Sinus-Max Severe Congestion and Pain and Mucinex Nightshift Sinus | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, PHENYLEPHRINE HYDROCHLORIDE, AND TRIPROLIDINE HYDROCHLORIDE | Reckitt Benckiser LLC | 75c6b92f-219f-4740-bb72-c02a927a21ff | 2026-05-12 | Warnings | M012 |
| Mucinex Sinus-Max Day Pressure, Pain and Cough and Mucinex Nightshift Night Sinus Maximum Strength | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, PHENYLEPHRINE HYDROCHLORIDE, TRIPROLIDINE HYDROCHLORIDE | Reckitt Benckiser LLC | c746953f-4b7d-4e2a-9b85-96bd6901f517 | 2026-05-12 | Warnings | M012 |
| Maximum Strength Mucinex Sinus-Max Severe Congestion and Pain | ACETAMINOPHEN, GUAIFENESIN, AND PHENYLEPHRINE HYDROCHLORIDE | Reckitt Benckiser LLC | cea08797-1d53-4434-be1a-144f2ded5f9d | 2026-05-12 | Warnings | M012 |
| Maximum Strength Mucinex Sinus-Max Severe Congestion and Pain | ACETAMINOPHEN, GUAIFENESIN, AND PHENYLEPHRINE HYDROCHLORIDE | Reckitt Benckiser LLC | 2ef9d5de-e99e-4398-bf97-c7bef94498fa | 2026-05-12 | Warnings | M012 |
| Mucinex Fast-Max Day Severe Congestion and Cough and Mucinex Nightshift Night Cold and Flu Maximum Strength | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, PHENYLEPHRINE HYDROCHLORIDE, AND TRIPROLIDINE HYDROCHLORIDE | Reckitt Benckiser LLC | a401eb92-60b6-427d-a677-29371a3150be | 2026-05-12 | Warnings | M012 |
| Mucinex Fast-Max Cold, Flu and Sore Throat | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, AND PHENYLEPHRINE HYDROCHLORIDE | Reckitt Benckiser LLC | c902b4fc-c71c-4ef2-b5cb-6c2bd019acbc | 2026-05-12 | Warnings | M012 |
| Mucinex Fast-Max Severe Congestion and Cough | DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, PHENYLEPHRINE HYDROCHLORIDE | Reckitt Benckiser LLC | 3ff4c4ea-7628-4d2b-a6e9-d994c25baef4 | 2026-05-12 | Warnings | M012 |
| Mucinex Fast-Max Cold, Flu and Sore Throat | ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, AND PHENYLEPHRINE HYDROCHLORIDE | Reckitt Benckiser LLC | d7c18e95-8d7b-4550-9a20-fc704a114adb | 2026-05-12 | Warnings | M012 |
DailyMed RxNorm Mappings#
| RxCUI | RxNorm string | TTY | DailyMed | SPL version |
|---|---|---|---|---|
| 1049909 | diphenhydrAMINE HCl 25 MG Oral Capsule | PSN | 3ac0beba-303d-404e-bfec-0cf8c0e8624d | 12 |
| 1020477 | diphenhydrAMINE HCl 50 MG Oral Capsule | PSN | 3ac0beba-303d-404e-bfec-0cf8c0e8624d | 12 |
| 1049909 | diphenhydramine hydrochloride 25 MG Oral Capsule | SCD | 3ac0beba-303d-404e-bfec-0cf8c0e8624d | 12 |
| 1020477 | diphenhydramine hydrochloride 50 MG Oral Capsule | SCD | 3ac0beba-303d-404e-bfec-0cf8c0e8624d | 12 |
| 1020477 | diphenhydramine HCl 50 MG Oral Capsule | SY | 3ac0beba-303d-404e-bfec-0cf8c0e8624d | 12 |
| 1020477 | diphenhydrAMINE HCl 50 MG Oral Capsule | PSN | c1873a4c-661f-4896-bcc0-f6d3a655de94 | 5 |
| 1020477 | diphenhydrAMINE HCl 50 MG Oral Capsule | PSN | 6e91b9c3-57e8-488b-ac70-d863cdf9d6e8 | 5 |
| 1020477 | diphenhydramine hydrochloride 50 MG Oral Capsule | SCD | c1873a4c-661f-4896-bcc0-f6d3a655de94 | 5 |
| 1020477 | diphenhydramine hydrochloride 50 MG Oral Capsule | SCD | 6e91b9c3-57e8-488b-ac70-d863cdf9d6e8 | 5 |
| 1020477 | diphenhydramine HCl 50 MG Oral Capsule | SY | c1873a4c-661f-4896-bcc0-f6d3a655de94 | 5 |
| 1020477 | diphenhydramine HCl 50 MG Oral Capsule | SY | 6e91b9c3-57e8-488b-ac70-d863cdf9d6e8 | 5 |
| 1020477 | diphenhydrAMINE HCl 50 MG Oral Capsule | PSN | 3dbdf020-ca17-1197-e054-00144ff8d46c | 4 |
| 1020477 | diphenhydrAMINE HCl 50 MG Oral Capsule | PSN | 489645ad-d7da-5f52-e054-00144ff8d46c | 4 |
| 1020477 | diphenhydramine hydrochloride 50 MG Oral Capsule | SCD | 489645ad-d7da-5f52-e054-00144ff8d46c | 4 |
| 1020477 | diphenhydramine hydrochloride 50 MG Oral Capsule | SCD | 3dbdf020-ca17-1197-e054-00144ff8d46c | 4 |
| 1020477 | diphenhydramine HCl 50 MG Oral Capsule | SY | 489645ad-d7da-5f52-e054-00144ff8d46c | 4 |
| 1020477 | diphenhydramine HCl 50 MG Oral Capsule | SY | 3dbdf020-ca17-1197-e054-00144ff8d46c | 4 |
| 1020477 | diphenhydrAMINE HCl 50 MG Oral Capsule | PSN | 437e6a13-a4ff-4f98-8973-042f224ee85e | 3 |
| 1020477 | diphenhydramine hydrochloride 50 MG Oral Capsule | SCD | 437e6a13-a4ff-4f98-8973-042f224ee85e | 3 |
| 1020477 | diphenhydramine HCl 50 MG Oral Capsule | SY | 437e6a13-a4ff-4f98-8973-042f224ee85e | 3 |
| 1049909 | diphenhydrAMINE HCl 25 MG Oral Capsule | PSN | c46e1443-dffe-47a9-bc9a-acbe3a8b0b41 | 1 |
| 1049909 | diphenhydramine hydrochloride 25 MG Oral Capsule | SCD | c46e1443-dffe-47a9-bc9a-acbe3a8b0b41 | 1 |
Packages#
| Package NDC | 11-digit format | Description | Units | Marketing start | Sample | Exclude flag | Status |
|---|---|---|---|---|---|---|---|
| 66424-021-01 | 66424002101 | 100 CAPSULE in 1 BOTTLE, PLASTIC (66424-021-01) | 100 capsule | 2010-01-27 | No | No | Current |
| 66424-021-10 | 66424002110 | 1000 CAPSULE in 1 BOTTLE, PLASTIC (66424-021-10) | 1000 capsule | 2010-01-27 | No | No | Current |