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naratriptan 2.5 mg Tablet, 30-count — NDC 23155-0055-03 package photo

naratriptan 2.5 mg Tablet, 30-count

by Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc. · 30 TABLET in 1 BOTTLE (23155-055-03)
NDC 23155-0055-03
🏷️ FDA NDC (as labeled) 23155-055-03 billing pads the product segment with a zero
This package
Contains30-count Pack sizes3 compare ↓
Also priced by: Part D plans $2.94/unit — full pricing hub ↓
Also comes in: 9 tablets 23155-0055-19 500 tablets 23155-0055-05
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 →

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

🆔 Identity & classification

FDA NDC (as labeled) 23155-055-03
Product NDC 23155-055
11-digit billing NDC 23155005503
RxCUI 311918, 314135
UNII 10X8X4P12Z
Application # ANDA200502
SPL Set ID 41c29652-32f8-48dc-9038-0e2195aa2084
Established class (EPC) Serotonin-1b and Serotonin-1d Receptor Agonist
Mechanism of action Serotonin 1b Receptor Agonists; Serotonin 1d Receptor Agonists
DEA schedule Non-controlled
Marketing category ANDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2011-03-15
Route ORAL
Dosage form TABLET
Substance NARATRIPTAN HYDROCHLORIDE
GPI-14 67406050100320
GPI class Naratriptan HCl
GCN Seq No 031492
GCN 81111
HICL code 013266
Ingredient (HICL) Naratriptan Hcl
HIC1 code H
Therapeutic class — broad (HIC1) Nervous System (Except Autonomic)
HIC2 code H3
Therapeutic class — intermediate (HIC2) Analgesics
HIC3 code H3F
Therapeutic class — specific (HIC3) Antimigraine Preparations
AHFS code 28:32.28.00
AHFS class Selective Serotonin Agonists
FDB label name NARATRIPTAN HCL 2.5 MG TABLET
FDB brand name Naratriptan Hcl
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 23155-055-03 — 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 → 23155-0055-03. 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 Serotonin-1b and Serotonin-1d Receptor Agonist class.

Pharmacologic class Serotonin-1b and Serotonin-1d Receptor Agonist
Drug family (ATC) Selective serotonin (5HT1) agonists
How it works Serotonin 1b Receptor Agonists, Serotonin 1d Receptor Agonists
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

LabelerHeritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.
Application holderHERITAGE PHARMACEUTICALS INC DBA AVET PHARMACEUTICALS INC
FDA applicationANDA200502 (ANDA)
Labeler code23155
First marketedMar 2011
Product typeHuman Prescription Drug
Portfolio253 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 NARATRIPTAN HCL 2.5 MG TABLET Ingredient Naratriptan Hcl
📖 What it is MedlinePlus · NLM

Naratriptan is used to treat the symptoms of migraine headaches (severe, throbbing headaches that sometimes come with nausea and a strong reaction to sound or light). Naratriptan is in a class of medications called selective serotonin receptor agonists. It works by narrowing blood vessels around the brain, stopping pain signals from being sent to the brain, which stops the release of certain natural substances that cause pain, nausea, and other symptoms of migraines. Naratriptan does not stop migraine attacks from coming or reduce the number of headaches you have.

Read the full MedlinePlus article ↗
📗 Our plain-language guide HelloPharmacist
  • Naratriptan is specifically designed to treat migraine attacks — it targets the biological processes that cause migraine pain, including blood vessel changes and the release of pai...
  • What exactly is naratriptan for, and how is it different from everyday pain relievers?
  • You can take naratriptan at the onset of a migraine. There's no need to wait until the pain becomes severe — in fact, taking it early during an attack tends to work better. If your...
  • When should I take it during a migraine — right away, or should I wait to see if it gets bad?
📖 Read our full Naratriptan 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.

💊 What it looks like

Color Yellow / White
ShapeOval
ImprintI54
Size13 mm
ScoringNot scored
One label can cover several strengths, so colors may be combined — always confirm a loose pill against the dispensed prescription label or a pharmacist.
Where does this data come from?
Physical description (imprint, shape, color, scoring, coating) from this product’s FDA Structured Product Labeling (SPL), mirrored from DailyMed / openFDA.

🧪 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 3SY5LH9PMK
    Anhydrous lactose is a milk sugar with no water content. It acts as a filler and binder in tablets and capsules, adding bulk and helping ingredients stick together.
  • UNII OP1R32D61U
    Microcrystalline cellulose is a purified form of cellulose, a natural fiber from plant sources. It acts as a binder and filler in tablets and capsules, helping hold ingredients together and give the medicine its shape and size.
  • UNII M28OL1HH48
    Croscarmellose sodium is a plant-based substance derived from cellulose. It acts as a disintegrant, helping tablets and capsules break down quickly in the digestive system so the medicine can be absorbed.
  • UNII 0WZ8WG20P6
    Hypromellose 2910 is a plant-based cellulose derivative that acts as a thickener, binder, and film-coating agent. It helps control how quickly the medicine dissolves and protects the tablet or capsule from moisture and light.
  • UNII 70097M6I30
    Magnesium stearate is a salt made from magnesium and stearic acid, a fatty substance. It's used in tablets and capsules as a lubricant and glidant to help ingredients flow smoothly during manufacturing and prevent sticking.
  • UNII Q662QK8M3B
    Polyethylene glycol 8000 is a synthetic polymer made from ethylene oxide. It acts as a binder and filler in tablets and capsules, helping hold ingredients together and add bulk to the medicine.
  • UNII 7SEV7J4R1U
    A powder made from a naturally occurring mineral. In medicines, talc works as a glidant and anti-caking agent, helping tablets and capsules flow smoothly during manufacturing and preventing clumping.
  • UNII 15FIX9V2JP
    Titanium dioxide is a bright white mineral powder commonly used as a colorant and opacifying agent. It makes pills and tablets white or lighter in color and helps make coatings non-transparent.

8 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 DailyMed — ingredient 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 eachPer 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 $2.94 $88.35 / 30 tablets
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
Naratriptan 2.5 mg 00054-0279-03 Hikma 9 tablets $1.161 AB Availability likely —
Naratriptan 2.5 mg 69452-0341-72 Bionpharma 9 tablets $1.161 AB Availability likely —
naratriptan 2.5 mgthis 23155-0055-03 Heritage 30 tablets — AB FDA listed —
naratriptan 2.5 mg 87063-0288-09 ASCLEMED 9 tablets — 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

🏛️
2011
On the market since
Mar 2011
📍
2026
Currently FDA-listed
15 years listed
🔓
·
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.

💊 Medicaid utilization by pack size

Medicaid (SDUD) totals over the four most recent reported quarters for every package size of this drug — handy when a specific package (e.g. a starter/titration pack) carries little or no Medicaid volume on its own.
9 tablets23155-0055-19 29,988 Rx · $553,052
30 tablets this page23155-0055-03 No Medicaid data
500 tablets23155-0055-05 No Medicaid data
Drug total (last 4 qtrs): 29,988 Rx · 289,322 units · $553,052 gross reimbursed
Tap a pack size to open its page. Source: CMS State Drug Utilization Data, last 4 quarters.

🔬 Reported adverse events (FAERS)

Read carefully: FAERS reports are voluntary and unverified. Counts are not incidence, do not establish causation, are subject to reporting bias, and cannot be used to compare one drug to another. Shown for signal context only. Reports for Naratriptan — the ingredient across all brands.

Top reported reactions

Migraine117
Nausea107
Headache98
Fatigue68
Dizziness62
Vomiting59
Diarrhoea58

Age at onset

Neonate3
Infant4
Adolescent4
Adult203
Elderly34

Reporter sex

1,369 reports
Male · 12%
Female · 86%
Unknown · 1%

Serious outcomes

Hospitalization278
Disabling62
Life-threatening38
Death20
Reports over time (by year) — tap or hover for the count & year
2019 2021 2023 2026 171 0
Most recent year is provisional (FAERS lags ~3 months).
Where does this data come from?
Adverse-event reports from the FDA Adverse Event Reporting System (FAERS) via openFDA. FAERS reports are voluntary and unverified — counts are not incidence and don’t establish causation.

📦 Packaging — all sizes for this product

Package NDCDescription Per unit Per pack Marketing startStatus
23155-0055-03 You're viewing this 30 TABLET in 1 BOTTLE (23155-055-03) — — 2011-03-15 Active
23155-0055-05 500 TABLET in 1 BOTTLE (23155-055-05) — — 2011-03-15 Active
23155-0055-19 9 TABLET in 1 BLISTER PACK (23155-055-19) $1.16 / ea $10.45 2011-03-15 Active

You're viewing one of 3 pack sizes for this product.

This pack shows little to no recent Medicaid volume — the 9 tablets pack carries most fills. See all packs ↓

Pack size FAQ

What quantity is in NDC 23155-0055-03?
NDC 23155-0055-03 is a 30-count package — 30 tablet in 1 bottle.
What is the difference between NDC 23155-0055-03 and NDC 23155-0055-19?
Both are naratriptan 2.5 mg Tablet — the drug itself is identical. NDC 23155-0055-03 is the 30-count package, while NDC 23155-0055-19 is the 9 tablets package.
What NDC number is used to bill for this package of naratriptan 2.5 mg Tablet?
Bill NDC 23155-0055-03 — the 11-digit billing format is 23155005503. Pharmacy and medical claims use the 11-digit form; the FDA label may print a shorter form of the same code.

Prices are the latest CMS NADAC pharmacy acquisition cost per NDC; per-pack figures are per-unit × pack quantity, shown only when the pack is denominated in the same measure NADAC prices.

🧭 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 23155-055-03, 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: 23155-0055-03, written without dashes as 23155005503. 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 23155-0055-03, the first segment (23155) is the labeler code FDA assigned to Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.; the middle segment (0055) 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 Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.. Listing status can change — the directory data on this page refreshes weekly.
Does this product come in other package sizes?
Yes — the FDA directory lists 2 other package presentations of this same product, including 9 tablets (23155-0055-19), 500 tablets (23155-0055-05). Each has its own NDC and its own page — see the package list near the top of this page.
Who lists this product with the FDA?
Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals 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 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 ⏱️ Dosage and Administration 💊 Dosage Forms and Strengths ⛔ Contraindications ⚠️ Warnings and Cautions 🤒 Adverse Reactions 🔄 Drug Interactions 👥 Use in Specific Populations 🤰 Pregnancy 🧒 Pediatric Use 🧓 Geriatric Use 🆘 Overdosage 🧬 Clinical Pharmacology 🧬 Mechanism of Action 📦 How Supplied / Storage and Handling 📋 Description 💬 Information for Patients 💬 Medication Guide
🎯 Indications and Usage 146 words ▾

1 INDICATIONS AND USAGE Naratriptan tablets are indicated for the acute treatment of migraine with or without aura in adults. Limitations of Use: Use only if a clear diagnosis of migraine has been established. If a patient has no response to the first migraine attack treated with naratriptan tablets reconsider the diagnosis of migraine before naratriptan tablets are administered to treat any subsequent attacks.

Naratriptan tablets are not indicated for the prevention of migraine attacks. Safety and effectiveness of naratriptan tablets have not been established for cluster headache. Naratriptan Tablets are serotonin (5-HT 1B/1D ) receptor agonists (triptan) indicated for the acute treatment of migraine with or without aura in adults.

(1) Limitations of Use: Use only if a clear diagnosis of migraine has been established. (1) Not indicated for the prophylactic therapy of migraine attacks. (1) Not indicated for the treatment of cluster headache.

(1)

⏱️ Dosage and Administration ~1 min read ▾

2 DOSAGE AND ADMINISTRATION Recommended dose: 1 mg or 2.5 mg. ( 2.1 ) May repeat dose after 4 hours if needed; not to exceed 5 mg in any 24- hour period. ( 2.1 ) Mild or moderate renal or hepatic impairment: recommended starting dose is 1 mg not to exceed 2.5 mg in any 24-hour period. ( 2.2 , 2.3 )

2.1Dosing Information The recommended dose of naratriptan tablets is 1 mg or 2.5 mg. If the migraine returns or if the patient has only partial response, the dose may be repeated once after 4 hours, for a maximum dose of 5 mg in a 24-hour period. The safety of treating an average of more than 4 migraine attacks in a 30-day period has not been established.

2.2Dosage Adjustment in Patients With Renal Impairment Naratriptan tablets are contraindicated in patients with severe renal impairment (creatinine clearance: <15 mL/min) because of decreased clearance of the drug [see Contraindications (4) , Use in Specific Populations (8.6) , Clinical Pharmacology (12.3) ]. In patients with mild to moderate renal impairment, the maximum daily dose should not exceed 2.5 mg over a 24-hour period and a 1-mg starting dose is recommended [see Use in Specific Populations (8.6) , Clinical Pharmacology (12.3) ].

2.3Dosage Adjustment in Patients With Hepatic Impairment Naratriptan tablets are contraindicated in patients with severe hepatic impairment (Child-Pugh Grade C) because of decreased clearance [see Contraindications (4) , Use in Specific Populations (8.7) , Clinical Pharmacology (12.3) ]. In patients with mild or moderate hepatic impairment (Child-Pugh Grade A or B), the maximum daily dose should not exceed 2.5 mg over a 24-hour period and a 1-mg starting dose is recommended [ see Use in Specific Populations (8.7) , Clinical Pharmacology (12.3) ].

💊 Dosage Forms and Strengths 35 words ▾

3 DOSAGE FORMS AND STRENGTHS 1-mg yellow, round, biconvex film-coated tablets, debossed with 'I53' 2.5-mg white, 'D' shaped, biconvex film-coated tablets, debossed with 'I54' Tablets: 1 mg and 2.5 mg ( 3 , 16 )

⛔ Contraindications ~1 min read ▾

4 CONTRAINDICATIONS Naratriptan tablets are contraindicated in patients with: Ischemic coronary artery disease (CAD) (angina pectoris, history of myocardial infarction, or documented silent ischemia) or coronary artery vasospasm, including Prinzmetal's angina [see Warnings and Precautions (5.1) ] Wolff-Parkinson-White syndrome or arrhythmias associated with other cardiac accessory conduction pathway disorders [see Warnings and Precautions (5.2) ] History of stroke or transient ischemic attack (TIA) or history of hemiplegic or basilar migraine because such patients are at a higher risk of stroke [see Warnings and Precautions (5.4) ] Peripheral vascular disease [see Warnings and Precautions (5.5) ] Ischemic bowel disease [see Warnings and Precautions (5.5) ] Uncontrolled hypertension [see Warnings and Precautions (5.8) ] Recent use (i.e., within 24 hours) of another 5-HT 1 agonist, ergotamine-containing medication, ergot-type medication (such as dihydroergotamine or methysergide) [see Drug Interactions ( 7.1 , 7.2 )] Hypersensitivity to naratriptan (angioedema and anaphylaxis seen) [see Warnings and Precautions (5.9) ] Severe renal or hepatic impairment [see Use in Specific Populations ( 8.6 , 8.7 ), Clinical Pharmacology (12.3) ] History of coronary artery disease or coronary artery vasospasm ( 4 ) Wolff-Parkinson-White syndrome or other cardiac accessory conduction pathway disorders ( 4 ) History of stroke, transient ischemic attack, or hemiplegic or basilar migraine ( 4 ) Peripheral vascular disease ( 4 ) Ischemic bowel disease ( 4 ) Uncontrolled hypertension ( 4 ) Recent (within 24 hours) use of another 5-HT 1 agonist (e.g., another triptan) or an ergotamine-containing medication ( 4 ) Hypersensitivity to naratriptan (angioedema and anaphylaxis seen) ( 4 ) Severe renal or hepatic impairment ( 4 )

⚠️ Warnings and Cautions ~2 min read ▾

5 WARNINGS AND PRECAUTIONS Myocardial ischemia/infarction and Prinzmetal's angina: Perform cardiac evaluation in patients with multiple cardiovascular risk factors. ( 5.1 ) Arrhythmias: Discontinue naratriptan if occurs . ( 5.2 ) Chest/throat/neck/jaw pain, tightness, pressure, or heaviness: Generally not associated with myocardial ischemia; evaluate for CAD in patients at high risk.

( 5.3 ) Cerebral hemorrhage, subarachnoid hemorrhage, and stroke: Discontinue naratriptan if occurs . ( 5.4 ) Gastrointestinal ischemic reactions and peripheral vasospastic reactions: Discontinue naratriptan if occurs. ( 5.5 ) Medication overuse headache: Detoxification may be necessary.

( 5.6 ) Serotonin syndrome: Discontinue naratriptan if occurs. ( 5.7 )

5.1Myocardial Ischemia, Myocardial Infarction, and Prinzmetal's Angina Naratriptan is contraindicated in patients with ischemic or vasospastic CAD. There have been rare reports of serious cardiac adverse reactions, including acute myocardial infarction, occurring within a few hours following administration of naratriptan. Some of these reactions occurred in patients without known CAD.

Naratriptan may cause coronary artery vasospasm (Prinzmetal's angina), even in patients without a history of CAD. Perform a cardiovascular evaluation in triptan-naive patients who have multiple cardiovascular risk factors (e.g., increased age, diabetes, hypertension, smoking, obesity, strong family history of CAD) prior to receiving naratriptan. If there is evidence of CAD or coronary artery vasospasm, naratriptan is contraindicated.

For patients with multiple cardiovascular risk factors who have a negative cardiovascular evaluation, consider administering the first dose of naratriptan in a medically supervised setting and performing an electrocardiogram (ECG) immediately following administration of naratriptan. For such patients, consider periodic cardiovascular evaluation in intermittent long-term users of naratriptan.

5.2Arrhythmias Life-threatening disturbances of cardiac rhythm, including ventricular tachycardia and ventricular fibrillation leading to death, have been reported within a few hours following the administration of 5-HT 1 agonists. Discontinue naratriptan if these disturbances occur. Naratriptan is contraindicated in patients with Wolff-Parkinson-White syndrome or arrhythmias associated with other cardiac accessory conduction pathway disorders.

5.3Chest, Throat, Neck, and/or Jaw Pain/Tightness/Pressure Sensations of tightness, pain, and pressure in the chest, throat, neck, and jaw commonly occur after treatment with naratriptan and are usually non-cardiac in origin. However, perform a cardiac evaluation if these patients are at high cardiac risk. 5-HT 1 agonists, including naratriptan, are contraindicated in patients with CAD and those with Prinzmetal's variant angina.

5.4Cerebrovascular Events Cerebral hemorrhage, subarachnoid hemorrhage, and stroke have occurred in patients treated with 5-HT 1 agonists, and some have resulted in fatalities. In a number of cases, it appears possible that the cerebrovascular events were primary, the 5-HT 1 agonist having been administered in the incorrect belief that the symptoms experienced were a consequence of migraine when they were not. Also, patients with migraine may be at increased risk of certain cerebrovascular events (e.g., stroke, hemorrhage, TIA).

Discontinue naratriptan if a cerebrovascular event occurs. Before treating headaches in patients not previously diagnosed as migraineurs, and in migraineurs who present with symptoms atypical for migraine, exclude other potentially serious neurological conditions. Naratriptan is contraindicated in patients with a history of stroke or TIA.

5.5Other Vasospasm Reactions Naratriptan may cause non-coronary vasospastic reactions, such as peripheral vascular ischemia, gastrointestinal vascular ischemia and infarction (presenting with abdominal pain and bloody diarrhea), splenic infarction, and Raynaud's syndro…

🤒 Adverse Reactions ~2 min read ▾

6 ADVERSE REACTIONS The following adverse reactions are discussed in more detail in other sections of the prescribing information: Myocardial ischemia, myocardial infarction, and Prinzmetal's angina [see Warnings and Precautions (5.1 ) ] Arrhythmias [see Warnings and Precautions (5.2) ] Chest, throat, neck, and/or jaw pain/tightness/pressure [see Warnings and Precautions (5.3) ] Cerebrovascular events [see Warnings and Precautions (5.4) ] Other vasospasm reactions [s ee Warnings and Precautions (5.5) ] Medication overuse headache [see Warnings and Precautions (5.6) ] Serotonin syndrome [see Warnings and Precautions (5.7) ] Increase in blood pressure [see Warnings and Precautions (5.8) ] Hypersensitivity reactions [see Contraindications (4) , Warnings and Precautions (5.9) ] Most common adverse reactions (≥2% and >placebo) were paresthesias, nausea, dizziness, drowsiness, malaise/fatigue, and throat/neck symptoms.

( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Avet Pharmaceuticals Inc. at 1-866-901-DRUG (3784) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .

6.1Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared with rates in the clinical trials of another drug and may not reflect the rates observed in practice. In a long-term open-label trial where patients were allowed to treat multiple migraine attacks for up to 1 year, 15 patients (3.6%) discontinued treatment due to adverse reactions. In controlled clinical trials, the most common adverse reactions were paresthesias, dizziness, drowsiness, malaise/fatigue, and throat/neck symptoms, which occurred at a rate of 2% and at least 2 times placebo rate.

Table 1 lists the adverse reactions that occurred in 5 placebo-controlled clinical trials of approximately 1,752 exposures to placebo and naratriptan tablets in adult patients with migraine. Only reactions that occurred at a frequency of 2% or more in groups treated with naratriptan tablets 2.5 mg and that occurred at a frequency greater than the placebo group in the 5 pooled trials are included in Table 1. Table 1.

Adverse Reactions Reported by at Least 2% of Patients Treated With Naratriptan Tablets and at a Frequency Greater Than Placebo Adverse Reaction Percent of Patients Reporting Naratriptan Tablets 1 mg (n = 627) Naratriptan Tablets 2.5 mg (n = 627) Placebo (n = 498) Atypical sensation 2 4 1 Paresthesias (all types) 1 2 <1 Gastrointestinal 6 7 5 Nausea 4 5 4 Neurological 4 7 3 Dizziness 1 2 1 Drowsiness 1 2 <1 Malaise/fatigue 2 2 1 Pain and pressure sensation 2 4 2 Throat/neck symptoms 1 2 1 The incidence of adverse reactions in controlled clinical trials was not affected by age or weight of the patients, duration of headache prior to treatment, presence of aura, use of prophylactic medications, or tobacco use.

There were insufficient data to assess the impact of race on the incidence of adverse reactions.

🔄 Drug Interactions 109 words ▾

7 DRUG INTERACTIONS

7.1Ergot-Containing Drugs Ergot-containing drugs have been reported to cause prolonged vasospastic reactions. Because these effects may be additive, use of ergotamine-containing or ergot-type medications (like dihydroergotamine or methysergide) and naratriptan within 24 hours of each other is contraindicated.

7.2Other 5-HT 1 Agonists Concomitant use of other 5-HT 1B/1D agonists (including triptans) within 24 hours of treatment with naratriptan is contraindicated because the risk of vasospastic reactions may be additive.

7.3Selective Serotonin Reuptake Inhibitors/Serotonin Norepinephrine Reuptake Inhibitors and Serotonin Syndrome Cases of serotonin syndrome have been reported during co-administration of triptans and SSRIs, SNRIs, TCAs, and MAO inhibitors [see Warnings and Precautions (5.7) ].

👥 Use in Specific Populations ~3 min read ▾

8 USE IN SPECIFIC POPULATIONS Pregnancy: Based on animal data, may cause fetal harm. (8.1)

8.1Pregnancy Risk Summary There are no adequate data on the developmental risk associated with use of naratriptan in pregnant women. Data from a prospective pregnancy exposure registry and epidemiological studies of pregnant women have documented outcomes in women exposed to naratriptan during pregnancy; however, due to small sample sizes, no definitive conclusions can be drawn regarding the risk of birth defects following exposure to naratriptan [ see Data ]. In animal studies, naratriptan produced developmental toxicity (including embryolethality and fetal abnormalities) when administered to pregnant rats and rabbits.

The lowest doses producing evidence of developmental toxicity in animals were associated with plasma exposures 2.5 (rabbit) to 11 (rat) times that in humans at the maximum recommended daily dose (MRDD) [ see Data ]. In the U.S. general population, the estimated background risk of major birth defects and of miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. The reported rate of major birth defects among deliveries to women with migraine ranged from 2.2% to 2.9% and of miscarriage was 17%, which were similar to rates reported in women without migraine.

Clinical Considerations Disease-Associated Maternal and/or Embryo/Fetal Risk Several studies have suggested that women with migraine may be at increased risk of preeclampsia during pregnancy. Data Human Data : The numbers of exposed pregnancy outcomes accumulated during the Sumatriptan/Naratriptan/ Treximet® (sumatriptan and naproxen sodium) Pregnancy Registry, a population-based international prospective study that collected data from October 1997 to September 2012, and smaller observational studies, were insufficient to define a level of risk for naratriptan in pregnant women.

The Registry documented outcomes of 57 infants and fetuses exposed to naratriptan during pregnancy (52 exposed during the first trimester and 5 exposed during the second trimester). The occurrence of major birth defects (excluding fetal deaths and induced abortions without reported defects and all spontaneous pregnancy losses) during first-trimester exposure to naratriptan was 2.2% (1/46 [95% CI: 0.1% to 13.0%]) and during any trimester of exposure was 2.0% (1/51[95% CI: 0.1% to 11.8%]). Seven infants were exposed to both naratriptan and sumatriptan in utero, and one of these infants with first-trimester exposure was born with a major birth defect (ventricular septal defect).

The sample size in this study had 80% power to detect at least a 3.8- to 4.6- fold increase in the rate of major malformations. In a study using data from the Swedish Medical Birth Register, women who used triptans or ergots during pregnancy were compared with women who did not. Of the 22 births with first-trimester exposure to naratriptan, one infant was born with malformation (congenital deformity of the hand).

Animal Data : When naratriptan was administered to pregnant rats during the period of organogenesis at doses of 10, 60, or 340 mg/kg/day, there was a dose-related increase in embryonic death; incidences of fetal structural variations (incomplete/irregular ossification of skull bones, sternebrae, ribs) were increased at all doses. The maternal plasma exposures (AUC) at these doses were approximately 11, 70, and 470 times the exposure in humans at the MRDD. The high dose was maternally toxic, as evidenced by decreased maternal body weight gain during gestation.

A no-effect dose for developmental toxicity in rats exposed during organogenesis was not established. When naratriptan was administered orally (1, 5, or 30 mg/kg/day) to pregnant Dutch rabbits throughout organogenesis, the incidence of a specific fetal skeletal malformation (fused sternebrae) was increased at the high dose, the incidence of fetal variations (major blood vessel variations, supernumerary ribs, incomplete skelet…

🤰 Pregnancy ~3 min read ▾

8.1Pregnancy Risk Summary There are no adequate data on the developmental risk associated with use of naratriptan in pregnant women. Data from a prospective pregnancy exposure registry and epidemiological studies of pregnant women have documented outcomes in women exposed to naratriptan during pregnancy; however, due to small sample sizes, no definitive conclusions can be drawn regarding the risk of birth defects following exposure to naratriptan [ see Data ]. In animal studies, naratriptan produced developmental toxicity (including embryolethality and fetal abnormalities) when administered to pregnant rats and rabbits.

The lowest doses producing evidence of developmental toxicity in animals were associated with plasma exposures 2.5 (rabbit) to 11 (rat) times that in humans at the maximum recommended daily dose (MRDD) [ see Data ]. In the U.S. general population, the estimated background risk of major birth defects and of miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. The reported rate of major birth defects among deliveries to women with migraine ranged from 2.2% to 2.9% and of miscarriage was 17%, which were similar to rates reported in women without migraine.

Clinical Considerations Disease-Associated Maternal and/or Embryo/Fetal Risk Several studies have suggested that women with migraine may be at increased risk of preeclampsia during pregnancy. Data Human Data : The numbers of exposed pregnancy outcomes accumulated during the Sumatriptan/Naratriptan/ Treximet® (sumatriptan and naproxen sodium) Pregnancy Registry, a population-based international prospective study that collected data from October 1997 to September 2012, and smaller observational studies, were insufficient to define a level of risk for naratriptan in pregnant women.

The Registry documented outcomes of 57 infants and fetuses exposed to naratriptan during pregnancy (52 exposed during the first trimester and 5 exposed during the second trimester). The occurrence of major birth defects (excluding fetal deaths and induced abortions without reported defects and all spontaneous pregnancy losses) during first-trimester exposure to naratriptan was 2.2% (1/46 [95% CI: 0.1% to 13.0%]) and during any trimester of exposure was 2.0% (1/51[95% CI: 0.1% to 11.8%]). Seven infants were exposed to both naratriptan and sumatriptan in utero, and one of these infants with first-trimester exposure was born with a major birth defect (ventricular septal defect).

The sample size in this study had 80% power to detect at least a 3.8- to 4.6- fold increase in the rate of major malformations. In a study using data from the Swedish Medical Birth Register, women who used triptans or ergots during pregnancy were compared with women who did not. Of the 22 births with first-trimester exposure to naratriptan, one infant was born with malformation (congenital deformity of the hand).

Animal Data : When naratriptan was administered to pregnant rats during the period of organogenesis at doses of 10, 60, or 340 mg/kg/day, there was a dose-related increase in embryonic death; incidences of fetal structural variations (incomplete/irregular ossification of skull bones, sternebrae, ribs) were increased at all doses. The maternal plasma exposures (AUC) at these doses were approximately 11, 70, and 470 times the exposure in humans at the MRDD. The high dose was maternally toxic, as evidenced by decreased maternal body weight gain during gestation.

A no-effect dose for developmental toxicity in rats exposed during organogenesis was not established. When naratriptan was administered orally (1, 5, or 30 mg/kg/day) to pregnant Dutch rabbits throughout organogenesis, the incidence of a specific fetal skeletal malformation (fused sternebrae) was increased at the high dose, the incidence of fetal variations (major blood vessel variations, supernumerary ribs, incomplete skeletal ossification) was increased at the mid and high doses, and embryonic death was increased…

🧒 Pediatric Use 152 words ▾

8.4Pediatric Use Safety and effectiveness in pediatric patients have not been established. Therefore, naratriptan is not recommended for use in patients younger than18 years of age. One controlled clinical trial evaluated naratriptan tablets (0.25 to 2.5 mg) in 300 adolescent migraineurs aged 12 to 17 years who received at least 1 dose of naratriptan tablets for an acute migraine.

In this study, 54% of the patients were female and 89% were Caucasian. There were no statistically significant differences between any of the treatment groups. The headache response rates at 4 hours (n) were 65% (n = 74), 67% (n = 78), and 64% (n = 70) for placebo, 1-mg, and 2.5-mg groups, respectively.

This trial did not establish the efficacy of naratriptan compared with placebo in the treatment of migraine in adolescents. Adverse reactions observed in this clinical trial were similar in nature to those reported in clinical trials in adults.

🧓 Geriatric Use 177 words ▾

8.5Geriatric Use Clinical trials of naratriptan did not include sufficient numbers of patients aged 65 and older to determine whether they respond differently from younger patients. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function and of concomitant disease or other drug therapy.

Naratriptan is known to be substantially excreted by the kidney, and the risk of adverse reactions to this drug may be greater in elderly patients who have reduced renal function. In addition, elderly patients are more likely to have decreased hepatic function, they are at higher risk for CAD, and blood pressure increases may be more pronounced in the elderly. A cardiovascular evaluation is recommended for geriatric patients who have other cardiovascular risk factors (e.g., diabetes, hypertension, smoking, obesity, strong family history of CAD) prior to receiving naratriptan [see Warnings and Precautions (5.1) ].

🆘 Overdosage 100 words ▾

10 OVERDOSAGE Adverse reactions observed after overdoses of up to 25 mg included increases in blood pressure resulting in lightheadedness, neck tension, tiredness, and loss of coordination. Also, ischemic ECG changes likely due to coronary artery vasospasm have been reported. The elimination half-life of naratriptan is about 6 hours [see C linical Pharmacology (12.3) ], and therefore monitoring of patients after overdose with naratriptan should continue for at least 24 hours or while symptoms or signs persist.

There is no specific antidote to naratriptan. It is unknown what effect hemodialysis or peritoneal dialysis has on the serum concentrations of naratriptan.

🧬 Clinical Pharmacology ~3 min read ▾

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Naratriptan binds with high affinity to human cloned 5-HT 1B/1D receptors. Migraines are likely due to local cranial vasodilatation and/or to the release of sensory neuropeptides (including substance P and calcitonin gene-related peptide) through nerve endings in the trigeminal system. The therapeutic activity of naratriptan for the treatment of migraine headache is thought to be due to the agonist effects at the 5-HT 1B/1D receptors on intracranial blood vessels (including the arterio-venous anastomoses) and sensory nerves of the trigeminal system, which result in cranial vessel constriction and inhibition of pro-inflammatory neuropeptide release.

12.2Pharmacodynamics In the anesthetized dog, naratriptan has been shown to reduce the carotid arterial blood flow with little or no effect on arterial blood pressure or total peripheral resistance. While the effect on blood flow was selective for the carotid arterial bed, increases in vascular resistance of up to 30% were seen in the coronary arterial bed. Naratriptan has also been shown to inhibit trigeminal nerve activity in rat and cat.

In 10 subjects with suspected CAD undergoing coronary artery catheterization, there was a 1% to 10% reduction in coronary artery diameter following subcutaneous injection of 1.5 mg of naratriptan [see Contraindications (4) ].

12.3Pharmacokinetics Absorption: Naratriptan is well absorbed, with about 70% oral bioavailability. Following administration of a 2.5-mg tablet, the peak concentrations are obtained in 2 to 3 hours. After administration of 1-or 2.5-mg tablets, the C max is somewhat (about 50%) higher in women (not corrected for milligram-per-kilogram dose) than in men.

During a migraine attack, absorption is slower, with a T max of 3 to 4 hours. Food does not affect the pharmacokinetics of naratriptan. Naratriptan displays linear kinetics over the therapeutic dose range.

Distribution: The steady-state volume of distribution of naratriptan is 170 L. Plasma protein binding is 28% to 31% over the concentration range of 50 to 1,000 ng/mL. Metabolism: In vitro , naratriptan is metabolized by a wide range of cytochrome P450 isoenzymes into a number of inactive metabolites.

Elimination: Naratriptan is predominantly eliminated in urine, with 50% of the dose recovered unchanged and 30% as metabolites in urine. The mean elimination half-life of naratriptan is 6 hours. The systemic clearance of naratriptan is 6.6 mL/min/kg.

The renal clearance (220 mL/min) exceeds glomerular filtration rate, indicating active tubular secretion. Repeat administration of naratriptan tablets does not result in drug accumulation. Special Populations: Age: A small decrease in clearance (approximately 26%) was observed in healthy elderly subjects (65 to 77 years) compared with younger subjects, resulting in slightly higher exposure [see Use in Specific Populations (8.5) ].

Race: The effect of race on the pharmacokinetics of naratriptan has not been examined. Renal Impairment: Clearance of naratriptan was reduced by 50% in subjects with moderate renal impairment (creatinine clearance: 18 to 39 mL/min) compared with the normal group. Decrease in clearances resulted in an increase of mean half-life from 6 hours (healthy) to 11 hours (range: 7 to 20 hours).

The mean C max increased by approximately 40%. The effects of severe renal impairment (creatinine clearance: ≤ 15 mL/min) on the pharmacokinetics of naratriptan have not been assessed [see Contraindications (4) ]. Hepatic Impairment: Clearance of naratriptan was decreased by 30% in subjects with moderate hepatic impairment (Child-Pugh Grade A or B).

This resulted in an approximately 40% increase in the half-life (range: 8 to 16 hours). The effects of severe hepatic impairment (Child-Pugh Grade C) on the pharmacokinetics of naratriptan have not been assessed [see Contraindications (4) ]. Drug Interaction Studies: From population pharmacokinetic analyses, co-administration of…

🧬 Mechanism of Action 96 words ▾

12.1Mechanism of Action Naratriptan binds with high affinity to human cloned 5-HT 1B/1D receptors. Migraines are likely due to local cranial vasodilatation and/or to the release of sensory neuropeptides (including substance P and calcitonin gene-related peptide) through nerve endings in the trigeminal system. The therapeutic activity of naratriptan for the treatment of migraine headache is thought to be due to the agonist effects at the 5-HT 1B/1D receptors on intracranial blood vessels (including the arterio-venous anastomoses) and sensory nerves of the trigeminal system, which result in cranial vessel constriction and inhibition of pro-inflammatory neuropeptide release.

📦 How Supplied / Storage and Handling 122 words ▾

16 HOW SUPPLIED/STORAGE AND HANDLING Naratriptan tablets, USP containing 1 mg and 2.5 mg of naratriptan (base) as the hydrochloride. Naratriptan tablets, USP 1 mg, are yellow, round, biconvex film-coated tablets, debossed with 'I53' on one side and plain on the other side in blister packs of 9 tablets (NDC 23155-054-19), in HDPE container packs of 30 tablets (NDC 23155-054-03), and 500 tablets (23155-054-05). Naratriptan tablets, USP 2.5 mg, are white, 'D' shaped, biconvex film-coated tablets, debossed with 'I54' on one side and plain on the other side in blister packs of 9 tablets (23155-055-19), in HDPE container packs of 30 tablets (NDC 23155-055-03), and 500 tablets (NDC 23155-055-05).

Store at 20º to 25ºC (68º to 77ºF). [See USP Controlled Room Temperature].

📋 Description 140 words ▾

11 DESCRIPTION Naratriptan tablets, USP contains naratriptan hydrochloride, a selective 5-HT 1B/1D receptor agonist. Naratriptan hydrochloride is chemically designated as N-methyl-3-(1-methyl-4-piperidinyl)-1H-indole-5-ethanesulfonamide monohydrochloride, and it has the following structure: The empirical formula is C 17 H 25 N 3 O 2 S•HCl, representing a molecular weight of 371.93. Naratriptan hydrochloride is a white to pale yellow powder that is readily soluble in water.

Each naratriptan tablets, USP for oral administration contains 1.11 or 2.78 mg of naratriptan hydrochloride, equivalent to 1 or 2.5 mg of naratriptan, respectively. Each tablet also contains the inactive ingredients lactose anhydrous, microcrystalline cellulose, croscarmellose sodium, magnesium stearate. 1 mg tablet additionally contains opadry yellow, which contains: hypromellose 2910, titanium dioxide, polyethylene glycol 400 and iron oxide yellow.

2.5mg tablet additionally contains opadry white, which contains: hypromellose 2910, talc, polyethylene glycol 8000 and titanium dioxide. Image

💬 Information for Patients ~2 min read ▾

17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Patient Information). Risk of Myocardial Ischemia and/or Infarction, Prinzmetal's Angina, Other Vasospasm-Related Events, Arrhythmias, and Cerebrovascular Events: Inform patients that naratriptan tablets may cause serious cardiovascular side effects such as myocardial infarction or stroke. Although serious cardiovascular events can occur without warning symptoms, patients should be alert for the signs and symptoms of chest pain, shortness of breath, irregular heartbeat, significant rise in blood pressure, weakness, and slurring of speech and should ask for medical advice if any indicative sign or symptoms are observed.

Apprise patients of the importance of this follow-up [see Warnings and Precautions ( 5.1 , 5.2 , 5.4 , 5.5 , 5.8 )]. Anaphylactic Reactions: Inform patients that anaphylactic reactions have occurred in patients receiving naratriptan tablets. Such reactions can be life threatening or fatal.

In general, anaphylactic reactions to drugs are more likely to occur in individuals with a history of sensitivity to multiple allergens [see Contraindications (4) , Warnings and Precautions (5.9) ]. Concomitant Use With Other Triptans or Ergot Medications: Inform patients that use of naratriptan tablets within 24 hours of another triptan or an ergot-type medication (including dihydroergotamine or methysergide) is contraindicated [see Contraindications (4) , Drug Interactions ( 7.1 , 7.2 )]. Serotonin Syndrome: Caution patients about the risk of serotonin syndrome with the use of naratriptan tablets or other triptans, particularly during combined use with SSRIs, SNRIs, TCAs, and MAO inhibitors [see Warnings and Precautions (5.7) , Drug Interactions (7.3) ].

Medication Overuse Headache: Inform patients that use of acute migraine drugs for 10 or more days per month may lead to an exacerbation of headache and encourage patients to record headache frequency and drug use (e.g., by keeping a headache diary) [see Warnings and Precautions (5.6) ]. Pregnancy: Advise patients to notify their healthcare provider if they become pregnant during treatment or intend to become pregnant [see Use in Specific Populations (8.1) ]. Lactation: Advise patients to notify their healthcare provider if they are breastfeeding or plan to breastfeed [see Use in Specific Populations (8.2) ].

Ability to Perform Complex Tasks: Treatment with naratriptan tablets may cause somnolence and dizziness; instruct patients to evaluate their ability to perform complex tasks after administration of naratriptan tablets. Dispense with Patient Information available at: www.avetpharma.com/product Manufactured by: USV Private Limited Daman - 396210, India Manufactured for: Avet Pharmaceuticals Inc. East Brunswick, NJ 08816 1.866.901.

DRUG (3784) Revised: 04/2023 logo

💬 Medication Guide ~3 min read ▾

Patient Information Dispense with Patient Information available at: www.avetpharma.com/product Patient Information NARATRIPTAN TABLETS, USP (NAR-a-TRIP-tan) Read this Patient Information before you start taking naratriptan tablets and each time you get a refill. There may be new information. This information does not take the place of talking with your healthcare provider about your medical condition or treatment.

What is the most important information I should know about naratriptan tablets? Naratriptan tablets can cause serious side effects, including: Heart attack and other heart problems. Heart problems may lead to death.

Stop taking naratriptan tablets and get emergency medical help right away if you have any of the following symptoms of a heart attack: • discomfort in the center of your chest that lasts for more than a few minutes, or that goes away and comes back • severe tightness, pain, pressure, or heaviness in your chest, throat, neck, or jaw • pain or discomfort in your arms, back, neck, jaw, or stomach • shortness of breath with or without chest discomfort • breaking out in a cold sweat • nausea or vomiting • feeling lightheaded Naratriptan tablets are not for people with risk factors for heart disease unless a heart exam is done and shows no problem.

You have a higher risk for heart disease if you: • have high blood pressure • have high cholesterol levels • smoke • are overweight • have diabetes • have a family history of heart disease What are naratriptan tablets? Naratriptan tablets are prescription medicine used to treat acute migraine headaches with or without aura in adults who have been diagnosed with migraine headaches. Naratriptan tablets are not used to prevent or decrease the number of migraine headaches you have.

Naratriptan tablets are not used to treat other types of headaches such as hemiplegic migraines (that make you unable to move on one side of your body) or basilar migraines (rare form of migraine with aura). It is not known if naratriptan tablets are safe and effective to treat cluster headaches. It is not known if naratriptan tablets are safe and effective in children younger than 18 years of age.

Who should not take naratriptan tablets? Do not take naratriptan tablets if you have: • heart problems or a history of heart problems • narrowing of blood vessels to your legs, arms, stomach, or kidney (peripheral vascular disease) • uncontrolled high blood pressure • severe kidney problems • severe liver problems • hemiplegic migraines or basilar migraines. If you are not sure if you have these types of migraines, ask your healthcare provider. • had a stroke, transient ischemic attacks (TIAs), or problems with your blood circulation • taken any of the following medicines in the last 24 hours: • almotriptan (AXERT ® ) • eletriptan (RELPAX ® ) • frovatriptan (FROVA ® ) • rizatriptan (MAXALT ® , MAXALT-MLT ® ) • sumatriptan (IMITREX ® , SUMAVEL ® DosePro ® , ALSUMA ® ) • sumatriptan and naproxen (TREXIMET ® ) • ergotamines (CAFERGOT ® , ERGOMAR ® , MIGERGOT ® ) • dihydroergotamine (D.H.E.

45 ® , MIGRANAL ® ) Ask your healthcare provider if you are not sure if your medicine is listed above. • an allergy to naratriptan or any of the ingredients in naratriptan tablets. See the end of this leaflet for a complete list of ingredients in naratriptan tablets. What should I tell my healthcare provider before taking naratriptan tablets?

Before you take naratriptan tablets, tell your healthcare provider about all of your medical conditions, including if you: • have high blood pressure • have high cholesterol • have diabetes • smoke • are overweight • have heart problems or family history of heart problems or stroke • have kidney problems • have liver problems • are not using effective birth control • are pregnant or plan to become pregnant • are breastfeeding or plan to breastfeed. It is not known if naratriptan tablets passes into your breast milk.

Talk with your healthcare provider about the best way to feed y…

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗
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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.