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Nitroglycerin 4 mg/g Ointment, 30 g — NDC 72162-2643-03 package photo

Nitroglycerin 4 mg/g Ointment, 30 g

by Bryant Ranch Prepack · 30 g in 1 TUBE (72162-2643-3)
NDC 72162-2643-03
🏷️ FDA NDC (as labeled) 72162-2643-3 billing pads the package segment with a zero
Rx only Generic 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 →
⚠️
Other active recalls for Nitroglycerin (different manufacturers) — 3 · tap to view
These affect other manufacturers’ products for the same ingredient — not necessarily the exact NDC on this page.
Class II · Jul 24, 2026 — Presence of Particulate Matter: Product contaminated with particulate matter identified as hair, glass and/or paraformaldehyde (American Regent, Inc.) · FDA recall D-0791-2026
Class II · Mar 13, 2025 — CGMP Deviations (Glenmark Pharmaceuticals Inc., USA) · FDA recall D-0324-2025
Class II · Mar 13, 2025 — CGMP Deviations (Glenmark Pharmaceuticals Inc., USA) · FDA recall D-0331-2025
Each entry is an official FDA enforcement report — look up any recall number in the FDA recall database ↗

🆔 Identity & classification

FDA NDC (as labeled) 72162-2643-3
Product NDC 72162-2643
11-digit billing NDC 72162264303
NCPDP billing unit GM — per gram (weight)
RxCUI 1114466
UNII G59M7S0WS3
Application # ANDA218756
SPL Set ID 7cf08521-aaf6-4129-9f8e-077d6282fbc6
Established class (EPC) Nitrate Vasodilator
Physiologic effect Vasodilation
Chemical class Nitrates
DEA schedule Non-controlled
Marketing category ANDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2026-01-08
Route RECTAL
Dosage form OINTMENT
Substance NITROGLYCERIN
GCN Seq No 059201
GCN 24745
HICL code 000159
Ingredient (HICL) Nitroglycerin
HIC1 code Q
Therapeutic class — broad (HIC1) Ear/Eye/Nose/Rectum/Topical/Vagina/Other
HIC2 code Q3
Therapeutic class — intermediate (HIC2) Anal-Rectal Preparations
HIC3 code Q3T
Therapeutic class — specific (HIC3) Local Anorectal Nitrate Preparations
AHFS code 24:08.08.00
AHFS class Nitrates And Nitrites
FDB label name NITROGLYCERIN 0.4% OINTMENT
FDB brand name Nitroglycerin
Legend status F — Federal legend — prescription drug or device
TE code (Orange Book) AB · RLD · RS
Why two NDCs? The FDA registers this code as 72162-2643-3 — a 5-4-1 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 package segment → 72162-2643-03. 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 Nitrate Vasodilator class.

Pharmacologic class Nitrate Vasodilator
Drug family (ATC) Organic nitrates, Muscle relaxants
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

LabelerBryant Ranch Prepack
Application holderSOLARIS PHARMA CORP
FDA applicationANDA218756 (ANDA)
Labeler code72162
First marketedJan 2026
Product typeHuman Prescription Drug
Portfolio4,434 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

Label name NITROGLYCERIN 0.4% OINTMENT Ingredient Nitroglycerin
📗 Our plain-language guide HelloPharmacist
  • Great question — it's actually the same active ingredient, just in very different forms for very different places. The tablets, sprays, patches, and capsules all work by widening b...
  • What's the difference between nitroglycerin for chest pain and the kind used for anal fissure pain?
  • No — this is one of the most important safety warnings with nitroglycerin. Both drugs work on the same pathway, and combining them can cause a sudden, severe drop in blood pressure...
  • Can I use nitroglycerin if I take sildenafil (Viagra) or tadalafil (Cialis)?
📖 Read our full Nitroglycerin guide →
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.

🧪 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.

💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.

  • UNII 7EV65EAW6H
    Lanolin is a waxy substance derived from sheep's wool. It's used in medicines as an emollient and skin-conditioning agent to soften formulations and improve spreadability in topical products like creams and ointments.
  • UNII I9O0E3H2ZE
    Paraffin is a waxy, petroleum-derived substance used as a coating, lubricant, and hardening agent in tablets and capsules. It helps protect the medicine from moisture and gives pills a smooth finish.
  • UNII 4T6H12BN9U
    Petrolatum is a purified mineral oil-based jelly derived from petroleum. In medicines, it acts as an emollient, lubricant, and moisture barrier to soften skin, reduce friction, and help prevent water loss from formulations.
  • UNII 6DC9Q167V3
    Propylene glycol is a clear liquid derived from petroleum or vegetable sources. It acts as a solvent, humectant, and preservative in medicines, helping dissolve active ingredients and maintain product stability.
  • UNII 6O92ICV9RU
    A waxy substance derived from sorbitol that helps mix oil and water together in medicines. It's used as an emulsifier to keep ingredients evenly blended and stable.

5 inactive ingredients listed in the exact product block matched to this NDC.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMedingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.

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 systemPer gPer 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 · Q2 2026 $15.17 $455.16 / 30 g
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

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Nitroglycerin 4 mg/g 00713-0564-31 Cosette 1 tube $9.034 AB Availability likely
Nitroglycerin 4 mg/g 21922-0048-05 Encube 1 tube $9.034 AB Availability likely
Nitroglycerin 4 mg/g 52817-0835-30 Trupharma, 1 tube $9.034 AB Availability likely
Nitroglycerin 4 mg/g 73473-0500-30 Solaris 30 g $9.034 AB Availability likely
Nitroglycerin 4 mg/g 45802-0932-94 Padagis 1 tube $9.034 AB Availability likely
Rectiv 4 mg/g 58914-0301-80 Allergan, 1 tube $20.590 Availability likely
Nitroglycerin 4 mg/gthis 72162-2643-03 Bryant 30 g AB FDA listed
About this product: this is a generic version of the medicine. FDA equivalence ratings are shown when available, and other versions are listed above, least expensive first.
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

🏛️
2026
On the market since
Jan 2026
📍
2026
Currently FDA-listed
listed with the FDA
🔓
·
Generic on the market
this product is a generic
This is a generic drug

This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.

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.

📊 Medicare Part D spend CMS · PART D · 2026 (Q1)

Medicare Part D (outpatient prescription) spending for Nitroglycerin — the program that covers self-administered drugs. 16 manufacturers.
⚠️ Drug-level data: CMS publishes Part D spending by drug, not by NDC — these figures combine every manufacturer, strength and package size sold under the name Nitroglycerin. That’s a different level of aggregation than the Medicaid card above, which is specific to this exact 11-digit NDC (pack size included), so the two aren’t directly comparable.
Period
Total Part D spend
$8.16M
Claims incl. refills
600.2K
Beneficiaries
480.2K
Spend / beneficiary
$17.00
Spend / claim
$13.60
Trend by period
💵 About the dollar figures: spending is what Part D plans paid before confidential manufacturer rebates, so the program’s real net cost is lower. A blank patient count means fewer than 11 people — CMS hides counts that small to protect privacy. Source: CMS Medicare Quarterly Part D Spending by Drug (data.cms.gov), updated quarterly.

📦 Packaging — all sizes for this product

Package NDCDescription Marketing startStatus
72162-2643-03 You're viewing this 30 g in 1 TUBE (72162-2643-3) 2026-05-18 Active

🧭 About this NDC listing & data coverage

Finished prescription 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 ✓ Available
Inactive ingredients (structured) ✓ 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 ✓ Available
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

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 72162-2643-3, 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: 72162-2643-03, written without dashes as 72162264303. 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 72162-2643-03, the first segment (72162) is the labeler code FDA assigned to Bryant Ranch Prepack; the middle segment (2643) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (03) 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 Bryant Ranch Prepack. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
Bryant Ranch Prepack 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 a prescription product, so it is dispensed under a prescriber's order. Your pharmacist can tell you whether any over-the-counter forms of the same medication exist.
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.

📄 Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage 42 words

1 INDICATIONS & USAGE Nitroglycerin Ointment 0.4% is indicated for the treatment of moderate to severe pain associated with chronic anal fissure. Nitroglycerin ointment is a nitrate vasodilator indicated for the treatment of moderate to severe pain associated with chronic anal fissure

⏱️ Dosage and Administration ~1 min read

2 DOSAGE & ADMINISTRATION Apply 1 inch of ointment (375 mg of ointment equivalent to 1.5 mg of nitroglycerin) intra-anally every 12 hours for up to 3 weeks. A finger covering, such as plastic-wrap, disposable surgical glove or a finger cot, should be placed on the finger to apply the ointment. To obtain a 1.5 mg dose of nitroglycerin, the covered finger is laid alongside the 1 inch dosing line on the carton.

Refer to carton for accurate dosage guide. The tube is gently squeezed until a line of ointment the length of the measuring line is expressed onto the covered finger. The ointment is gently inserted into the anal canal using the covered finger no further than to the first finger joint and the ointment is applied around the side of the anal canal.

If this cannot be achieved due to pain, application of the ointment should be made directly to the outside of the anus. Treatment may be continued for up to three weeks. Nitroglycerin ointment is not for oral, ophthalmic, or intravaginal use.

Hands should be washed after application of the ointment. [see Patient Instruction ] Apply 1 inch of ointment (375 mg of ointment equivalent to 1.5 mg of nitroglycerin) intra-anally every 12 hours for up to 3 weeks. Nitroglycerin ointment is not for oral, ophthalmic, or intravaginal use.

💊 Dosage Forms and Strengths 26 words

3 DOSAGE FORMS & STRENGTHS Nitroglycerin Ointment, USP 0.4% w/w (4 mg /1 g) in 30 g tubes. Ointment 0.4% w/w (4 mg nitroglycerin/1 g ointment).

Contraindications 162 words

4 CONTRAINDICATIONS Use of PDE5 inhibitors (e.g. sildenafil, vardenafil and tadalafil) as these are shown to potentiate the hypotensive effects of organic nitrates. ( 4.1 ). Severe anemia ( 4.2 ) Increased intracranial pressure ( 4.3 ) Known hypersensitivity to nitroglycerin, other nitrates and nitrites, or any components of the ointment. ( 4.4 )

4.1PDE5 Inhibitor Use Administration of nitroglycerin ointment is contraindicated in patients who are using a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5), such as sildenafil, vardenafil, and tadalafil, as these are shown to potentiate the hypotensive effects of organic nitrates [see DRUG INTERACTIONS (7.1) ] .

4.2Severe Anemia Nitroglycerin ointment is contraindicated in patients with severe anemia.

4.3Increased Intracranial Pressure Nitroglycerin ointment is contraindicated in patients with increased intracranial pressure.

4.4Hypersensitivity Nitroglycerin ointment is contraindicated in patients who have shown hypersensitivity to it or to other nitrates or nitrites. Skin reactions consistent with hypersensitivity have been observed with organic nitrates.

⚠️ Warnings and Cautions 175 words

5 WARNINGS AND PRECAUTIONS Cardiovascular Disorders: Venous and arterial dilatation as a consequence of nitroglycerin treatment can result in hypotension. Exercise caution when treating patients with any of the following conditions: blood volume depletion, existing hypotension, cardiomyopathies, congestive heart failure, acute myocardial infarction, or poor cardiac function for other reasons ( 5.1 ). Headache: Nitroglycerin produces dose-related headaches which may be severe ( 5.2 )

5.1Cardiovascular Disorders Venous and arterial dilatation as a consequence of nitroglycerin treatment including nitroglycerin ointment, can decrease venous blood returning to the heart and reduce arterial vascular resistance and systolic pressure. Exercise caution when treating patients with any of the following conditions: blood volume depletion, existing hypotension, cardiomyopathies, congestive heart failure, acute myocardial infarction, or poor cardiac function for other reasons. If patients with any of these conditions are treated with nitroglycerin ointment, monitor cardiovascular status and clinical condition.

The adverse reactions of nitroglycerin ointment are likely to be more pronounced in the elderly.

5.2Headache Nitroglycerin ointment produces dose-related headaches, which may be severe. Tolerance to headaches occurs.

🤒 Adverse Reactions ~1 min read

6 ADVERSE REACTIONS Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The most common adverse reaction of nitroglycerin ointment applied to the anal canal is headache. Headache may be recurrent following each dose.

Headaches are typically of short duration and can be treated with an analgesic, e.g. acetaminophen, and are reversible upon discontinuation of treatment. In Study REC-C-001, a double-blind, placebo-controlled trial in patients with a painful chronic anal fissure, the most frequent (³ 2%) adverse reactions reported were as follows (Table 1): Table 1: Incidence of Adverse Reactions ( ³ 2%) in Study REC-C-001 Nitroglycerin ointment N = 123 Placebo N = 124 System Organ Class Preferred term Patients n (%) Events n Patients n (%) Events n Nervous system disorders Headache 79 (64) 938 51 (41) 225 Dizziness 6 (5) 26 0 0 Hypotension Transient episodes of light-headedness, occasionally related to blood pressure changes, also may occur.

Hypotension (including orthostatic hypotension) occurs infrequently, but in some patients may be severe enough to warrant discontinuation of therapy. Allergic Reactions Flushing, allergic reactions, and application site reactions (including drug rash and exfoliative dermatitis) have been reported rarely. Methemoglobinemia In rare cases, therapeutic doses of organic nitrates have caused methemoglobinemia [ see OVERDOSAGE(10) ] .

Most common adverse reactions are headache and dizziness. To report SUSPECTED ADVERSE REACTIONS, contact Solaris Pharma Corporation at 1-833-919-0527 or FDA at 1-800-332-1088 or www.fda.gov/medwatch .

🔄 Drug Interactions ~2 min read

7 DRUG INTERACTIONS PDE5 inhibitors: potentiation of hypotensive effects of organic nitrates; concomitant use is contraindicated. ( 4.1 , 7.1 ) Antihypertensives: possible additive hypotensive effects. ( 7.2 ) Aspirin: increased nitroglycerin levels.

( 7.3 ) Tissue-type Plasminogen Activator (t-PA): decreased thrombolytic effect. ( 7.4 ) Heparin: anticoagulant effect of heparin may be reduced. Monitor APTT.

( 7.5 ) Ergotamine: increased bioavailability of ergotamine. ( 7.6 ) Alcohol: Additive vasodilatory effects to nitroglycerin. Consumption of alcohol should be avoided.

( 7.7 )

7.1PDE5 Inhibitors Phosphodiesterase type 5 (PDE5) inhibitors such as sildenafil, vardenafil, and tadalafil have been shown to potentiate the hypotensive effects of organic nitrates. The time course of the interaction appears to be related to the half-life of the PDE5 inhibitor, however, the dose dependence of this interaction has not been studied. Use of nitroglycerin ointment within a few days of PDE5 inhibitors is contraindicated.

7.2Antihypertensives Patients receiving antihypertensive drugs, beta-adrenergic blockers, and other nitrates should be observed for possible additive hypotensive effects when using nitroglycerin ointment. Marked orthostatic hypotension has been reported when calcium channel blockers and organic nitrates were used concomitantly. Beta-blockers blunt the reflex tachycardia produced by nitroglycerin without preventing its hypotensive effects.

If beta-blockers are used with nitroglycerin ointment in patients with angina pectoris, additional hypotensive effects may occur.

7.3Aspirin Coadministration of aspirin (at doses between 500 mg and 1000 mg) and nitroglycerin has been reported to result in increased nitroglycerin maximum concentrations by as much as 67% and AUC by 73% when administered as a single dose. The pharmacological effects of nitroglycerin ointment may be enhanced by concomitant administration of aspirin.

7.4Tissue-type Plasminogen Activator (t-PA) Intravenous administration of nitroglycerin decreases the thrombolytic effect of tissue-type plasminogen activator (t-PA). Plasma levels of t-PA are reduced when coadministered with nitroglycerin. Therefore, caution should be observed in patients receiving nitroglycerin ointment during t-PA therapy.

7.5Heparin Although an interaction has been reported between intravenous heparin and intravenous nitroglycerin (resulting in a decrease in the anticoagulant effect of heparin), the data are not consistent. If patients are to receive intravenous heparin and nitroglycerin ointment concurrently, the anticoagulation status of the patient must be checked.

7.6Ergotamine Oral administration of nitroglycerin markedly decreases the first-pass metabolism of dihydroergotamine and consequently increases its oral bioavailability. Ergotamine is known to precipitate angina pectoris. Therefore the possibility of ergotism in patients receiving nitroglycerin ointment should be considered.

7.7Alcohol The vasodilating effects of nitroglycerin have been shown to be additive to the effects observed with alcohol.

👥 Use in Specific Populations ~2 min read

8 USE IN SPECIFIC POPULATIONS

8.1Pregnancy Risk Summary There are no data on the use of nitroglycerin ointment intra-anally during pregnancy to determine a drug-associated risk of major birth defects, miscarriage or other adverse maternal or fetal outcomes. In animal reproduction studies, no malformations were observed in offspring of pregnant rats and rabbits administered nitroglycerin by topical or dietary route during the period of organogenesis ( see Data ). The background risk of major birth defects and miscarriage for the indicated population is unknown.

All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Animal Data Animal reproduction studies in rats and rabbits were conducted with topically applied nitroglycerin ointment at doses up to 80 mg/kg/day and 240 mg/kg/day, respectively.

No toxic effects on dams or fetuses were seen at any dose tested. An animal reproduction study was conducted in rats with nitroglycerin administered in the diet at levels up to 1% content (approximately 430 mg/kg/day) on days 6 to 15 of gestation. In offspring of the high-dose group, an increased but not statistically significant incidence of diaphragmatic hernias was noted together with decreased hyoid bone ossification.

The latter finding probably reflects delayed development, thus indicating no clear evidence of a potential teratogenic effect of nitroglycerin.

8.2Lactation Risk Summary There are no data on the presence of nitroglycerin in either human or animal milk following topical administration, or the effects of nitroglycerin on milk production. A publication describing 40 lactating patients who used nitroglycerin ointment to treat chronic anal fissures for varied durations did not report signs of adverse effects in their breastfed infants, however, the dosing regimens were not described. The developmental and health benefits of breastfeeding should be considered along with the clinical need for nitroglycerin ointment and any potential adverse effects on the breastfed infant from nitroglycerin ointment or from the underlying maternal condition.

8.4Pediatric Use The safety and effectiveness of nitroglycerin ointment in pediatric patients under 18 years of age have not been established.

8.5Geriatric Use Clinical studies of nitroglycerin ointment did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Clinical data from the published literature indicate that the elderly demonstrate increased sensitivity to nitrates, which may be therapeutic but also manifest by more frequent or severe hypotension and related dizziness or fainting. Increased sensitivity may reflect the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.

🤰 Pregnancy ~1 min read

8.1Pregnancy Risk Summary There are no data on the use of nitroglycerin ointment intra-anally during pregnancy to determine a drug-associated risk of major birth defects, miscarriage or other adverse maternal or fetal outcomes. In animal reproduction studies, no malformations were observed in offspring of pregnant rats and rabbits administered nitroglycerin by topical or dietary route during the period of organogenesis ( see Data ). The background risk of major birth defects and miscarriage for the indicated population is unknown.

All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Animal Data Animal reproduction studies in rats and rabbits were conducted with topically applied nitroglycerin ointment at doses up to 80 mg/kg/day and 240 mg/kg/day, respectively.

No toxic effects on dams or fetuses were seen at any dose tested. An animal reproduction study was conducted in rats with nitroglycerin administered in the diet at levels up to 1% content (approximately 430 mg/kg/day) on days 6 to 15 of gestation. In offspring of the high-dose group, an increased but not statistically significant incidence of diaphragmatic hernias was noted together with decreased hyoid bone ossification.

The latter finding probably reflects delayed development, thus indicating no clear evidence of a potential teratogenic effect of nitroglycerin.

🧒 Pediatric Use 22 words

8.4Pediatric Use The safety and effectiveness of nitroglycerin ointment in pediatric patients under 18 years of age have not been established.

🧓 Geriatric Use 83 words

8.5Geriatric Use Clinical studies of nitroglycerin ointment did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Clinical data from the published literature indicate that the elderly demonstrate increased sensitivity to nitrates, which may be therapeutic but also manifest by more frequent or severe hypotension and related dizziness or fainting. Increased sensitivity may reflect the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.

🆘 Overdosage ~1 min read

10 OVERDOSAGE Nitroglycerin toxicity is generally mild. The estimated adult oral lethal dose of nitroglycerin is 200 mg to 1,200 mg. Infants may be more susceptible to toxicity from nitroglycerin.

Consultation with a poison center should be considered. Laboratory determinations of serum levels of nitroglycerin and its metabolites are not widely available, and such determinations have, in any event, no established role in the management of nitroglycerin overdose. No data are available to suggest physiological maneuvers (e.g., maneuvers to change the pH of the urine) that might accelerate elimination of nitroglycerin and its active metabolites.

Similarly, it is not known which, if any, of these substances can usefully be removed from the body by hemodialysis. No specific antagonist to the vasodilator effects of nitroglycerin is known, and no intervention has been subject to controlled study as a therapy of nitroglycerin overdose. Because the hypotension associated with nitroglycerin overdose is the result of venodilatation and arterial hypovolemia, prudent therapy in this situation should be directed toward increase in central fluid volume.

Passive elevation of the patient’s legs may be sufficient, but intravenous infusion of normal saline or similar fluid may also be necessary. The use of epinephrine or other arterial vasoconstrictors in this setting is not recommended. In patients with renal disease or congestive heart failure, therapy resulting in central volume expansion is not without hazard.

Treatment of nitroglycerin ointment overdose in these patients may be subtle and difficult, and invasive monitoring may be required. Methemoglobinemia Methemoglobinemia has been rarely reported with organic nitrates. The diagnosis should be suspected in patients who exhibit signs of impaired oxygen delivery despite adequate arterial PO 2 .

Classically, methemoglobinemic blood is described as chocolate brown, without color change on exposure to air. If methemoglobinemia is present, intravenous administration of methylene blue, 1 to 2 mg/kg of body weight, may be required.

🧬 Clinical Pharmacology ~1 min read

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Nitroglycerin forms free radical nitric oxide (NO), which activates guanylate cyclase, resulting in an increase of guanosine 3’,5’-monophosphate (cyclic GMP) in smooth muscle and other tissues. This leads to dephosphorylation of myosin light chains, which regulates the contractile state in smooth muscle and results in vasodilatation.

12.2Pharmacodynamics The principal pharmacological action of nitroglycerin is relaxation of vascular smooth muscle. Intra- anal application of nitroglycerin reduces sphincter tone and resting intra-anal pressure.

12.3Pharmacokinetics Absorption: In six healthy subjects, the average absolute bioavailability of nitroglycerin applied to the anal canal as a 0.2% w/w ointment was approximately 50% of the 0.75 mg nitroglycerin dose. Distribution: The volume of distribution of nitroglycerin following intravenous administration is about 3 L/kg. At plasma concentrations between 50 and 500 ng/mL, the binding of nitroglycerin to plasma proteins is approximately 60%, while that of 1,2- and 1,3-dinitroglycerin is 60% and 30%, respectively.

Metabolism: Nitroglycerin is metabolized by a liver reductase enzyme to glycerol di- and mononitrate metabolites and ultimately to glycerol and organic nitrate. Known sites of extrahepatic metabolism include red blood cells and vascular walls. In addition to nitroglycerin, the two major metabolites, 1,2- and 1,3- dinitroglycerols are found in plasma.

The contribution of metabolites to the relaxation of the internal anal sphincter is unknown. The dinitrates are further metabolized to nonvasoactive mononitrates and ultimately to glycerol and carbon dioxide. Elimination: Metabolism is the primary route of drug elimination.

Nitroglycerin plasma concentrations decrease rapidly with a mean elimination half-life of two to three minutes. Half-life values range from 1.5 to 7.5 minutes. Clearance (13.6 L/min) greatly exceeds hepatic blood flow.

🧬 Mechanism of Action 50 words

12.1Mechanism of Action Nitroglycerin forms free radical nitric oxide (NO), which activates guanylate cyclase, resulting in an increase of guanosine 3’,5’-monophosphate (cyclic GMP) in smooth muscle and other tissues. This leads to dephosphorylation of myosin light chains, which regulates the contractile state in smooth muscle and results in vasodilatation.

📦 How Supplied / Storage and Handling 63 words

16 HOW SUPPLIED/STORAGE AND HANDLING Nitroglycerin Ointment, USP 0.4% is off-white to pale yellow ointment and is available in 30 g (NDC 72162-2643-3) aluminum tubes with polyethylene screw caps. Store at 20°-25°C (68°-77°F); excursions permitted between 15°-30°C (59°-86°F). [See USP Controlled Room Temperature]. Keep the tube tightly closed. Use within 8 weeks of first opening. Repackaged/Relabeled by: Bryant Ranch Prepack Burbank, CA 91504

📋 Description 75 words

11 DESCRIPTION Nitroglycerin is 1,2,3,-propanetriol trinitrate, an organic nitrate whose structural formula is as follows: and whose molecular weight is 227.09. Nitroglycerin Ointment, USP 0.4% contains 0.4% nitroglycerin w/w (4 mg nitroglycerin/1 g ointment), propylene glycol, lanolin, sorbitan sesquioleate, paraffin, and white petrolatum. Nitroglycerin Ointment, USP 0.4% is available in tubes with a one-inch dosing line on the carton allowing the measurement of approximately 375 mg of nitroglycerin ointment 0.4% (1.5 mg nitroglycerin) for application.

💬 Information for Patients ~3 min read

17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Patient Information and Instructions for Use). Interaction with PDE5 Inhibitors Advise patient not to use nitroglycerin ointment with medications for erectile dysfunction such as Viagra (sildenafil), Levitra (vardenafil), and Cialis (tadalafil). These products have been shown to increase the hypotensive effects of nitroglycerin ointment and other nitrate drugs. [see Contraindications(4)] Hypotension Advise patients that treatment with nitroglycerin ointment may be associated with light-headedness on standing, especially just after rising from a lying or seated position.

The effect may be more frequent in patients who have also consumed alcohol, since alcohol use contributes to hypotension. Advise patients to stand up from the supine or sitting position slowly. Headaches Advise patients that headaches sometimes accompany treatment with nitroglycerin ointment.

For patients who get these headaches, the headaches may indicate the activity of the drug. Tolerance to headaches develops. Advise patients that if they experience headache they should not alter the schedule of their nitroglycerin ointment treatment to avoid the occurrence of headache.

An analgesic, such as acetaminophen, may be used to prevent or relieve the headaches. Dizziness Advise patients that dizziness has been reported as a side-effect of treatment with nitroglycerin ointment. Advise patients not to drive or operate machinery immediately after applying nitroglycerin ointment.

Manufactured for: Solaris Pharma Corporation Somerset, NJ 08873 Revised: November 2025 Patient Information Nitroglycerin Ointment, USP 0.4% IMPORTANT: For intra-anal use only Read the Patient Information that comes with nitroglycerin ointment before you start using the product and each time you get a refill because there may be new information. This information does not take the place of talking to your healthcare provider about your medical condition or your treatment. If you have any questions about nitroglycerin ointment, ask your healthcare provider.

What is nitroglycerin ointment? Nitroglycerin ointment is a prescription medicine used to treat moderate to severe pain caused by chronic anal fissures. An anal fissure is a tear in the skin lining the anal canal.

Nitroglycerin ointment is not suitable for children and adolescents under the age of 18 years because it has not been assessed in people in this age group. Who should not use nitroglycerin ointment? Do not use nitroglycerin ointment if you: are taking a medicine for erectile dysfunction (male impotence), for example Viagra (sildenafil), Cialis (tadalafil) or Levitra (vardenafil). have been told by your doctor that you have severe anemia (low numbers of red blood cells in your blood) have increased intracranial pressure or high pressure within your skull e.g. following head trauma or bleeding in your brain are allergic to any of the ingredients in nitroglycerin ointment or if you have had allergic reactions to similar medicines in the past.

See the end of this leaflet for a list of ingredients in nitroglycerin ointment. What should I tell my healthcare provider before using nitroglycerin ointment? Tell your healthcare provider about all your medical conditions, including if you: have low blood pressure have recently had a heart attack have heart or blood vessel disorders suffer from migraine or recurrent headaches are pregnant or plan to become pregnant.

It is not known if nitroglycerin ointment will harm your unborn baby. are breast-feeding or plan to breast-feed. It is not known if the components of nitroglycerin ointment will harm your child if you breast-feed. Nitroglycerin ointment may lower your blood pressure.

When getting up from a lying or sitting position, you should get up slowly, otherwise you might feel faint. Tell your healthcare provider about all the medicines you take , including prescription and non- prescription medicine…

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.