InstaRelief Nighttime Sleep Aid DIPHENHYDRAMINE HYDROCHLORIDE 50 mg/3mL Liquid
by DXM Pharmacuetical, Inc. · 1 BOTTLE in 1 CARTON (71598-120-19) / 120 mL in 1 BOTTLE
NDC 71598-0120-19
🏷️ FDA NDC (as labeled)
71598-120-19
billing pads the product segment with a zero
OTC
On market
Non-controlled
🗂️ Data synced Jul 24, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →
🆔 Identity & classification
FDA NDC (as labeled)
71598-120-19
Product NDC
71598-120
11-digit billing NDC
71598012019
RxCUI
2671699
UNII
TC2D6JAD40
Application #
M010
SPL Set ID
e0459e71-32dd-4715-b103-bb14db42c5f3
Established class (EPC)
Histamine-1 Receptor Antagonist
Mechanism of action
Histamine H1 Receptor Antagonists
DEA schedule
Non-controlled
Marketing category
OTC MONOGRAPH DRUG
Marketing status
On market
FDA listing status
Listed (active directory)
Marketing start
2023-10-01
Route
ORAL
Dosage form
LIQUID
Substance
DIPHENHYDRAMINE HYDROCHLORIDE
Why two NDCs?
The FDA registers this code as 71598-120-19 — a 5-3-2 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the product segment → 71598-0120-19. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.
🏷️ RxNorm drug class
This medicine belongs to the Histamine-1 Receptor Antagonist class.
Pharmacologic class
Histamine-1 Receptor Antagonist
Drug family (ATC)
Propionic acid derivatives, Antihistamines for topical use, Aminoalkyl ethers
How it works
Histamine H1 Receptor Antagonists
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.
🏭 Manufacturer & labeler
LabelerDXM Pharmacuetical, Inc.
FDA applicationM010 (OTC MONOGRAPH DRUG)
Labeler code71598
First marketedOct 2023
Product typeHuman Otc Drug
Portfolio4 products on file
The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.
🩺 Clinical
📖 What it is MedlinePlus · NLM
Diphenhydramine is used to treat allergy and cold symptoms: sneezing runny nose red, itchy, watery eyes itching of the nose or throat Diphenhydramine is also used to treat insomnia (difficulty falling asleep or staying asleep) in adults, but should not be used to make a child sleepy. Diphenhydramine is in a class of medications called antihistamines. It works by blocking the action of histamine, a substance in the body that causes allergic symptoms. Diphenhydramine is also available in combination with other medications. This monograph only includes information about the use of diphenh...
Read the full MedlinePlus article ↗📗 Our plain-language guide HelloPharmacist
- Diphenhydramine is mainly used to temporarily ease the stuffy, sneezy, itchy symptoms of allergies — like hay fever — and the common cold. Think runny nose, sneezing, watery or itc...
- What exactly does diphenhydramine treat?
- Yes, and that's one of the most important things to know about this medicine. Drowsiness is one of its most common effects — it crosses into the brain and that's what causes the se...
- It depends on your child's age and the product. Most oral diphenhydramine products are not recommended for children under 6, and liquid products labeled for children are generally...
Patient education
Supplement & herbal interactions
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.
💬 Questions about DIPHENHYDRAMINE HYDROCHLORIDE?
Ask a pharmacist →
Ask a licensed pharmacist directly — free, answered by our team.
🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
Loading inactive ingredients from the official FDA label in the background. No external source is being called by this page request.
Where does this data come from?
Source: official FDA Structured Product Labeling (SPL) via DailyMed and the openFDA label index. Structured
IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.
💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per mL | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data. | |
| Medicare drug plans payPart D · quarterly | No Part D plan price is available for this NDC in our data. | |
ℹ️
No price is published for this exact package yet. CMS surveys NADAC per package size, so a different pack of the same drug often has one.
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| InstaRelief Nighttime Sleep Aid 50 mg/3mLthis 71598-0120-19 | DXM | 1 bottle | — | — | FDA listed | — |
About this product: other versions of the same ingredient, strength and form are listed above, least expensive first, with FDA equivalence ratings where available.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.
⏳ Availability & generic status
🏛️
2023
On the market since
Oct 2023
📍
2026
Currently FDA-listed
3 years listed
🔒
·
Generic approved (availability unconfirmed)
see note
🔒Generic approved by FDA, but pharmacy availability is not confirmed
The FDA lists approved generic versions of this medicine, but that does not always mean a pharmacy can get one today. Patent rules, launch agreements, supply and pricing can affect when generics actually arrive.
Where does this data come from?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 71598-0120-19 You're viewing this | 1 BOTTLE in 1 CARTON (71598-120-19) / 120 mL in 1 BOTTLE | 2023-10-01 | Active |
🧭 About this NDC listing & data coverage
Over-the-counter (OTC) product
What data is (and isn’t) available for this NDC — tap to expand
| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | — Not published for this NDC No photo available yet for this listing. |
| Inactive ingredients (structured) | — Not published for this NDC The labeler did not submit a structured excipient list, or no SPL is available. |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | — Not published for this NDC Applies only to products approved under an NDA/ANDA; many listings are out of scope. |
| HCPCS J-code billing crosswalk | — Not published for this NDC Most self-administered / retail products have no J-code — that is normal. |
| Medicaid utilization (CMS SDUD) | — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold. |
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.
Questions about this listing
Is this NDC FDA-approved?
An NDC listing does not by itself establish FDA approval — the NDC Directory records that a product is listed with FDA, not that it was reviewed and approved. This listing's marketing category is "Otc Monograph Drug". Products approved under an application carry an NDA, ANDA, or BLA number.
Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The FDA registers it as 71598-120-19, which is what is printed on the packaging and shown on DailyMed. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero: 71598-0120-19, written without dashes as 71598012019. The Identity section at the top of this page lists every form of this code.
What do the three segments of this NDC mean?
In 71598-0120-19, the first segment (71598) is the labeler code FDA assigned to DXM Pharmacuetical, Inc.; the middle segment (0120) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (19) identifies this exact package size and type. Together they name one specific package of one specific product.
Is this package still being marketed?
Yes, per the latest FDA NDC Directory data on this page: this package is listed as actively marketed, with no marketing end date reported by DXM Pharmacuetical, Inc.. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
DXM Pharmacuetical, Inc. is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as an over-the-counter product, so it does not require a prescription. Follow the package directions, and ask your pharmacist if you are unsure whether it is right for you.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.
📄 FDA label — Drug Facts FDA SPL
The complete FDA label for this product — the official Drug Facts labeling, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage
⏱️ Dosage and Administration
⚠️ Warnings
🧪 Active Ingredient
🧪 Inactive Ingredients
🎯 Purpose
🎯 Indications and Usage ▾
Uses For relief of occasional sleeplessness. Helps to reduce difficulty falling asleep. Reduces time to fall asleep. Warnings
⏱️ Dosage and Administration ▾
Directions only use this product according to these directions or as directed by a doctor do not exceed 1 dose (3 mL) (50 mg) in any24-hour period measure only 3 mL with dosing syringe provided keep dosing syringe with product mL = milliliter - fl oz = fluid ounce age dose adults and children 12 years and over 3mL at bedtime children under 12 years do not use
⚠️ Warnings ▾
Warning Do not use for children under 12 years of age, or with any other product containing diphenhydramine, even one used on skin. Do not take this product, unless directed by a doctor if you have a breathing problem such as emphysema or chronic bronchitis, or if you have glaucoma, or difficulty in urination due to enlargement of the prostate gland. Do not take this product if you are taking sedatives or tranquilizers, without first consulting your doctor.
Avoid alcoholic beverages while taking this product. If sleeplessness persists continuously for more than 2 weeks, consult your doctor. Insomnia may be a symptom of serious underlying medical illness.
If pregnant or breast-feeding , ask a doctor before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
(1-800-222-1222)
🧪 Active Ingredient ▾
Active ingredient (in each 3mL) (one dose) Diphenhydramine HCI, 50 mg
🧪 Inactive Ingredients ▾
Inactive ingredients citric acid, glycerin, grape flavor, propylene glycol, purified water, sodium benzoate, sodium citrate, stevia, sucralose, sucrose
🎯 Purpose ▾
Purpose Nighttime sleep-aid
No label section mentions that — try another word, or open the full label on DailyMed below.
Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA.
Prefer the government’s original formatting? View this label on DailyMed ↗
For educational and professional reference only — not medical advice. Pricing reflects published
NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.