NDC 42291-0650-90 — Norethindrone Acetate 5 mg Tablet, 90-count

🆔 Identity & classification

FDA NDC (as labeled) 42291-650-90

Product NDC 42291-650

11-digit billing NDC 42291065090

NCPDP billing unit EA — each (per item)

RxCUI 1000405

UNII 9S44LIC7OJ

Application # ANDA200275

SPL Set ID 827c7ef1-a8b7-d0c4-b062-c5154b331a35

Established class (EPC) Progestin

Chemical class Progesterone Congeners

DEA schedule Non-controlled

Marketing category ANDA

Marketing status On market

FDA listing status Listed (active directory)

Marketing start 2013-06-18

Route ORAL

Dosage form TABLET

Substance NORETHINDRONE ACETATE

GPI-14 26000030100305

GPI class Norethindrone Acetate

GCN Seq No 003274

GCN 11280

HICL code 001443

Ingredient (HICL) Norethindrone Acetate

HIC1 code G

Therapeutic class — broad (HIC1) Female Genital System

HIC2 code G2

Therapeutic class — intermediate (HIC2) Progestogens

HIC3 code G2A

Therapeutic class — specific (HIC3) Progestational Agents

AHFS code 68:32.00.00

AHFS class Progestins

FDB label name NORETHINDRONE 5 MG TABLET

FDB brand name Norethindrone Acetate

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 42291-650-90 — 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 → 42291-0650-90. 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 Progestin class.

Pharmacologic class Progestin

Drug family (ATC) Progestogens and estrogens, sequential preparations, Progestogens, Estren derivatives

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

LabelerAvKARE

Application holderAMNEAL PHARMACEUTICALS

FDA applicationANDA200275 (ANDA)

Labeler code42291

First marketedJun 2013

Product typeHuman Prescription Drug

Portfolio380 products on file

🔎 All NDCs from AvKARE

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 NORETHINDRONE 5 MG TABLET Ingredient Norethindrone Acetate

📗 Our plain-language guide HelloPharmacist

It depends on the product. Most norethindrone tablets — including brands like Camila, Errin, Emzahh, and Affodel — are progestin-only birth control pills taken daily to prevent pre...
Regular combination birth control pills contain two hormones — estrogen and progestin. Norethindrone is a progestin-only pill, sometimes called the 'mini-pill.' Because it has no e...
How is this different from regular birth control pills?
The most common thing people notice is irregular bleeding — spotting between periods, or changes in your cycle. Headache, breast tenderness, nausea, and dizziness are also reported...

📖 Read our full Norethindrone guide →

Patient education

📘 MedlinePlus patient leaflet ↗

Supplement & herbal interactions

Some supplements/herbs that may interact with Norethindrone — tap one for details:

Activated CharcoalMajor Coffee CharcoalModerate European MandrakeModerate GlucomannanModerate Guar GumModerate Gum ArabicModerate Slippery ElmModerate TragacanthModerate

🌿 Every supplement checked against Norethindrone (152 interactions) — ranked by severity →

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 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 J2B2A4N98G
Lactose is a natural sugar derived from milk. In medications, it serves as a filler and binder to add bulk and help hold tablet or capsule ingredients together during manufacturing.
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.

3 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 system	Per each	Per package
Retail pharmacies payNADAC · weekly	Not in the retail survey — common for institutional, discontinued, or low-volume packs.
Medicaid paysCMS SDUD · 12 mo	No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data.
Medicare drug plans payPart D · quarterly	No Part D plan price is available for this NDC in our data.

ℹ️

No price is published for this exact package yet. CMS surveys NADAC per package size, so a different pack of the same drug often has one.

Where does this data come from?

NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

🔁 Therapeutic equivalents

Product	Labeler	Pack	NADAC/unit	TE	Status	Price vs. this
Norethindrone Acetate 5 mg 00555-0211-10	Teva	50 tablets	$0.295	AB	Availability likely	—
Norethindrone acetate 5 mg 50742-0267-50	Ingenus	50 tablets	$0.295	AB	Availability likely	—
Norethindrone Acetate 5 mg 60687-0921-21	American	30 tablets	$0.295	AB	Availability likely	—
Gallifrey 5 mg 70700-0326-50	Xiromed	50 tablets	$0.295	AB	Availability likely	—
Norethindrone Acetate 5 mgthis 42291-0650-90	AvKARE	90 tablets	—	AB	FDA listed	—
Norethindrone Acetate 5 mg 51407-0599-50	Golden	50 tablets	—	AB	FDA listed	—
Norethindrone Acetate 5 mg 65162-0475-03	Amneal	30 tablets	—	AB	FDA listed	—
Norethindrone Acetate 5 mg 68462-0304-05	Glenmark	500 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

🏛️

2013

On the market since

Jun 2013

📍

2026

Currently FDA-listed

13 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.

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

Medicare Part D (outpatient prescription) spending for Norethindrone Acetate — the program that covers self-administered drugs. 4 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 Norethindrone Acetate. 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

$565.1K

Claims incl. refills

14.2K

Beneficiaries

8.9K

Spend / beneficiary

$63.32

Spend / claim

$39.71

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.

🔬 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 Norethindrone Acetate (this brand).

Top reported reactions

Nausea386

Headache373

Hot Flush365

Fatigue287

Pain264

Vaginal Haemorrhage260

Abdominal Pain252

Age at onset

Child5

Adolescent69

Adult479

Elderly9

Reporter sex

Male · 1%

Female · 99%

Unknown · 0%

Serious outcomes

Hospitalization841

Life-threatening166

Disabling80

Death74

Reports over time (by year) — tap or hover for the count & year

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 NDC	Description	Marketing start	Status
42291-0650-90 You're viewing this	90 TABLET in 1 BOTTLE (42291-650-90)	2013-06-18	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 42291-650-90, 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: 42291-0650-90, written without dashes as 42291065090. 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 42291-0650-90, the first segment (42291) is the labeler code FDA assigned to AvKARE; the middle segment (0650) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (90) 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 AvKARE. Listing status can change — the directory data on this page refreshes weekly.

Who lists this product with the FDA?

AvKARE 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 ⛔ Contraindications ⚠️ Warnings 🤒 Adverse Reactions 🧬 Clinical Pharmacology 📦 How Supplied / Storage and Handling 📋 Description 💬 Medication Guide

🎯 Indications and Usage 60 words ▾

INDICATIONS AND USAGE Norethindrone acetate tablets, USP is indicated for the treatment of secondary amenorrhea, endometriosis, and abnormal uterine bleeding due to hormonal imbalance in the absence of organic pathology, such as submucous fibroids or uterine cancer. Norethindrone acetate tablets, USP are not intended, recommended or approved to be used with concomitant estrogen therapy in postmenopausal women for endometrial protection.

⏱️ Dosage and Administration 167 words ▾

DOSAGE AND ADMINISTRATION Therapy with norethindrone acetate tablets, USP must be adapted to the specific indications and therapeutic response of the individual patient. Secondary amenorrhea, abnormal uterine bleeding due to hormonal imbalance in the absence of organic pathology: 2.5 to 10 mg norethindrone acetate, USP may be given daily for 5 to 10 days to produce secretory transformation of an endometrium that has been adequately primed with either endogenous or exogenous estrogen. Progestin withdrawal bleeding usually occurs within three to seven days after discontinuing norethindrone acetate, USP therapy.

Patients with a past history of recurrent episodes of abnormal uterine bleeding may benefit from planned menstrual cycling with norethindrone acetate tablets, USP. Endometriosis: Initial daily dosage of 5 mg norethindrone acetate, USP for two weeks. Dosage should be increased by 2.5 mg per day every two weeks until 15 mg per day of norethindrone acetate, USP is reached.

Therapy may be held at this level for six to nine months or until annoying breakthrough bleeding demands temporary termination.

⛔ Contraindications 75 words ▾

CONTRAINDICATIONS Known or suspected pregnancy. There is no indication for norethindrone acetate, USP in pregnancy. (See PRECAUTIONS .) Undiagnosed vaginal bleeding Known, suspected or history of cancer of the breast Active deep vein thrombosis, pulmonary embolism or history of these conditions Active or recent (e.g., within the past year) arterial thromboembolic disease (e.g., stroke, myocardial infarction) Impaired liver function or liver disease As a diagnostic test for pregnancy Hypersensitivity to any of the drug components

⚠️ Warnings 82 words ▾

WARNINGS 1. Cardiovascular disorders Patients with risk factors for arterial vascular disease (e.g., hypertension, diabetes mellitus, tobacco use, hypercholesterolemia, and obesity) and/or venous thromboembolism (e.g., personal history or family history of VTE, obesity, and systemic lupus erythematosus) should be managed appropriately. 2.

Visual abnormalities Discontinue medication pending examination if there is a sudden partial or complete loss of vision or if there is sudden onset of proptosis, diplopia, or migraine. If examination reveals papilledema or retinal vascular lesions, medication should be discontinued.

🤒 Adverse Reactions 126 words ▾

ADVERSE REACTIONS See WARNINGS and PRECAUTIONS . The following adverse reactions have been observed in women taking progestins: Breakthrough bleeding Spotting Change in menstrual flow Amenorrhea Edema Changes in weight (decreases, increases) Changes in the cervical squamo-columnar junction and cervical secretions Cholestatic jaundice Rash (allergic) with and without pruritus Melasma or chloasma Clinical depression Acne Breast enlargement/tenderness Headache/migraine Urticaria Abnormalities of liver tests (i.e., AST, ALT, Bilirubin) Decreased HDL cholesterol and increased LDL/HDL ratio Mood swings Nausea Insomnia Anaphylactic/anaphylactoid reactions Thrombotic and thromboembolic events (e.g., deep vein thrombosis, pulmonary embolism, retinal vascular thrombosis, cerebral thrombosis and embolism) Optic neuritis (which may lead to partial or complete loss of vision) To report SUSPECTED ADVERSE REACTIONS contact AvKARE at 1-855-361-3993; email [email protected]; or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

🧬 Clinical Pharmacology ~2 min read ▾

CLINICAL PHARMACOLOGY Norethindrone acetate induces secretory changes in an estrogen-primed endometrium. On a weight basis, it is twice as potent as norethindrone. Pharmacokinetics Absorption Norethindrone acetate is completely and rapidly deacetylated to norethindrone (NET) after oral administration, and the disposition of norethindrone acetate is indistinguishable from that of orally administered norethindrone.

Norethindrone acetate is rapidly absorbed from norethindrone acetate tablets, with maximum plasma concentration of norethindrone generally occurring at about 2 hours post-dose. The pharmacokinetic parameters of norethindrone following single oral administration of norethindrone acetate in 29 healthy female volunteers are summarized in Table 1. Table 1.Pharmacokinetic Parameters after a Single Dose of Norethindrone Acetate in Healthy Women Norethindrone Acetate (n=29) Arithmetic Mean ± SD Norethindrone (NET) AUC = area under the curve, C max = maximum plasma concentration, t max = time at maximum plasma concentration, t 1/2 = half-life, SD = standard deviation AUC (0-inf) (ng/ml*h) 166.90 ±

56.28C max (ng/ml) 26.19 ± 6.19 t max (h) 1.83 ± 0.58 t 1/2 (h) 8.51 ±

2.19Figure 1. Mean Plasma Concentration Profile after a Single Dose of 5 mg Administered to 29 Healthy Female Volunteers under Fasting Conditions Effect of Food The effect of food administration on the pharmacokinetics of norethindrone acetate has not been studied. Distribution Norethindrone is 36% bound to sex hormone-binding globulin (SHBG) and 61% bound to albumin.

Volume of distribution of norethindrone is about 4 L/kg. Metabolism Norethindrone undergoes extensive biotransformation, primarily via reduction, followed by sulfate and glucuronide conjugation. The majority of metabolites in the circulation are sulfates, with glucuronides accounting for most of the urinary metabolites.

Excretion Plasma clearance value for norethindrone is approximately

0.4L/hr/kg. Norethindrone is excreted in both urine and feces, primarily as metabolites. The mean terminal elimination half-life of norethindrone following a single dose administration of norethindrone acetate is approximately 9 hours.

Special Populations Geriatrics The effect of age on the pharmacokinetics of norethindrone after norethindrone acetate administration has not been evaluated. Race The effect of race on the disposition of norethindrone after norethindrone acetate administration has not been evaluated. Renal Insufficiency The effect of renal disease on the disposition of norethindrone after norethindrone acetate administration has not been evaluated.

In premenopausal women with chronic renal failure undergoing peritoneal dialysis who received multiple doses of an oral contraceptive containing ethinyl estradiol and norethindrone, plasma norethindrone concentration was unchanged compared to concentrations in premenopausal women with normal renal function. Hepatic Insufficiency The effect of hepatic disease on the disposition of norethindrone after norethindrone acetate administration has not been evaluated. However, norethindrone acetate is contraindicated in markedly impaired liver function or liver disease.

Drug Interactions No pharmacokinetic drug interaction studies investigating any drug-drug interactions with norethindrone acetate have been conducted. cd236b39-figure-02

📦 How Supplied / Storage and Handling 67 words ▾

HOW SUPPLIED Norethindrone acetate tablets, USP, 5 mg, are supplied as white to off-white oval, biconvex tablets debossed with “AN” bisect “475” on one side and plain on the other side. They are available as follows: Bottles of 90: NDC 42291-650-90 Store at 20º to 25ºC (68º to 77ºF) [See USP Controlled Room Temperature]. All registered trademarks in this document are the property of their respective owners.

📋 Description 53 words ▾

DESCRIPTION Norethindrone acetate tablets, USP - 5 mg oral tablets. Norethindrone acetate, USP (17-hydroxy-19-nor-17α-pregn-4-en-20-yn-3-one acetate), a synthetic, orally active progestin, is the acetic acid ester of norethindrone, USP. It is a white, or creamy white, crystalline powder. Norethindrone acetate tablets, USP contain the following inactive ingredients: lactose, magnesium stearate, and microcrystalline cellulose. cd236b39-figure-01

💬 Medication Guide ~3 min read ▾

PATIENT INFORMATION Norethindrone Acetate Tablets Read this PATIENT INFORMATION before you start taking norethindrone acetate tablets and read what you get each time you refill norethindrone acetate tablets. There may be new information. This information does not take the place of talking to your healthcare provider about your medical condition.

What is the most important information I should know about norethindrone acetate (A Progestin Hormone) tablets? Do not use norethindrone acetate if you are pregnant, breastfeeding or are trying to conceive. Do not use norethindrone acetate if you have had a previous blood clot, stroke, or heart attack.

Do not use norethindrone acetate if you are postmenopausal. What is norethindrone acetate? Norethindrone acetate is similar to the progesterone hormones naturally produced by the body.

What are norethindrone acetate tablets used for? Norethindrone acetate tablets are used for the treatment of secondary amenorrhea (absence of menstrual periods in women who have previously had a menstrual period who are not pregnant), the treatment of endometriosis, and the treatment of irregular menstrual periods due to hormone imbalance. Who should not take norethindrone acetate tablets?

You should not take norethindrone acetate tablets if you are postmenopausal, pregnant or breast-feeding. You should not take norethindrone acetate tablets if you have the following conditions: Known or suspected pregnancy . Norethindrone acetate tablets are not indicated during pregnancy as it may cause fetal harm when administered to pregnant women.

There is an increased risk of minor birth defects in children whose mothers take norethindrone acetate during the first 4 months of pregnancy (mild masculinization of the external genitalia of the female fetus, as well as hypospadias in the male fetus). If you take norethindrone acetate and later find out you were pregnant, talk with your healthcare provider right away. History of blood clots in the legs, lungs, eyes, brain, or elsewhere, or a past history of these conditions Liver impairment or disease Known or suspected cancer of the breast.

If you have or had cancer of the breast, talk with your healthcare provider about whether you should take norethindrone acetate. Undiagnosed vaginal bleeding Hypersensitivity to norethindrone acetate tablets. See the end of this leaflet for a list of all of the ingredients in norethindrone acetate tablets.

What are the risks associated with norethindrone acetate tablets? Risk to the Fetus Norethindrone acetate tablets should not be used if you are pregnant. Norethindrone acetate tablets are contraindicated during pregnancy as it may cause fetal harm when administered to pregnant women.

There is an increased risk of minor birth defects in children whose mothers take this drug during the first 4 months of pregnancy. Several reports suggest an association between mothers who take these drugs in the first trimester of pregnancy and congenital abnormalities in male and female babies. Although it is not clear that these events were drug related, you should check with your healthcare provider about the risks to your unborn child of any medication taken during pregnancy.

You should avoid using norethindrone acetate tablets during pregnancy. If you take norethindrone acetate tablets and later find you were pregnant when you took it, be sure to discuss this with your healthcare provider as soon as possible. Abnormal Blood Clotting Use of progestational drugs, such as norethindrone acetate, has been associated with changes in the blood-clotting system.

These changes allow the blood to clot more easily, possibly allowing clots to form in the bloodstream. If blood clots do form in your bloodstream, they can cut off the blood supply to vital organs, causing serious problems. These problems may include a stroke (by cutting off blood to part of the brain), a heart attack (by cutting off blood to part of the heart), a pulmonary embolus (by cutting off…

Glossary — plain-language definitions of medical terms used in this label:

contraindicated: Should not be used in that situation, because the risk is considered too high.

systemic lupus erythematosus: A long-term autoimmune disease in which the immune system attacks the body's own tissues, affecting joints, skin, kidneys, and other organs.

Absorption: How a medicine moves from where it is taken, such as the stomach or gut, into the bloodstream.

Adverse Reactions: Unwanted or harmful effects that people experienced while taking a medicine, listed on its official label.

ALT: A liver enzyme (alanine aminotransferase) checked by a blood test; raised levels can signal that the liver is irritated or damaged.

amenorrhea: The absence of monthly menstrual periods.

AST: A liver enzyme (aspartate aminotransferase) measured in a blood test; higher levels may point to liver or sometimes muscle injury.

AUC: A measure of total drug exposure over time, showing how much medicine the blood is exposed to overall.

bilirubin: A yellow substance the liver normally clears from the blood; high levels can turn the skin or the whites of the eyes yellow.

clearance: How quickly the body removes a medicine from the blood, usually through the liver and kidneys.

Clinical Pharmacology: The label section explaining how a medicine works in the body and how the body processes it.

Contraindications: A list of situations or health conditions in which a medicine should not be used because the chance of harm is too high.

deep vein thrombosis: A blood clot that forms in a deep vein, usually in the leg, causing swelling and pain.

depression: A lasting low mood with loss of interest that affects everyday life.

diplopia: Double vision, or seeing two images of a single object.

Distribution: How a medicine spreads from the blood into the body's tissues and organs after it is absorbed.

Dosage and Administration: The label section explaining how much of a medicine to use and how to take or give it.

Drug Interactions: The label section listing other medicines, foods, or substances that can change how a medicine works or raise the chance of side effects.

edema: Swelling caused by extra fluid trapped in the body's tissues.

Elimination: The overall removal of a medicine from the body by breaking it down and passing it out.

embolism: A blockage of a blood vessel by a clot or other material that has traveled from elsewhere in the body.

Excretion: How the body removes a medicine or its leftover pieces, mainly through the urine or stool.

fetal harm: Injury or damage to a developing baby while it is growing inside the womb.

Half-life: The time it takes for the amount of medicine in the blood to drop by half.

hypercholesterolemia: A higher-than-normal level of cholesterol, a type of fat, in the blood.

hypersensitivity: An overreaction of the body's defense system to a substance, causing symptoms such as rash, swelling, or trouble breathing.

hypertension: Blood pressure that stays higher than normal, commonly called high blood pressure.

Indications and Usage: The label section stating which medical conditions the FDA has officially approved the medicine to treat, prevent, or manage.

insomnia: Trouble falling asleep, staying asleep, or getting restful sleep.

jaundice: Yellowing of the skin and the whites of the eyes caused by too much bilirubin in the blood.

Metabolism: How the body chemically changes a medicine, usually in the liver, into other substances.

myocardial infarction: The medical term for a heart attack, when blood flow to part of the heart muscle is blocked.

NDC: A unique number that identifies a specific medicine, its maker, strength, and package size.

optic neuritis: Swelling and irritation of the nerve that carries signals from the eye to the brain, which can affect vision.

Pharmacokinetics: The study of how the body takes in a medicine, spreads it around, breaks it down, and removes it over time.

plasma concentration: The amount of medicine measured in the liquid part of the blood at a given time.

pruritus: Itching of the skin.

pulmonary embolism: A blood clot that has traveled to the lungs and blocks blood flow there, which can make breathing hard.

thromboembolism: A blood clot that forms in one place and travels through the bloodstream to block a vessel somewhere else.

thrombosis: The forming of a blood clot inside a blood vessel, which can block normal blood flow.

trimester: One of the three roughly three-month stages that a pregnancy is divided into.

urticaria: Raised, itchy welts on the skin, commonly called hives.

volume of distribution: A calculated value showing how widely a medicine spreads into body tissues versus staying in the blood.

Warnings and Precautions: The label section describing serious risks to know about and safety steps to follow while using a medicine.

withdrawal: Uncomfortable physical or mental symptoms that appear when a medicine the body has gotten used to is reduced or stopped.

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

🔗 Related NDC lookups

🧪 All Norethindrone NDCsSame ingredient 🏭 All AvKARE labeler NDCsLabeler code 42291 📚 All Progestin NDCsDrug class 📖 Read the Norethindrone drug informationUses, warnings & side effects

💊 Related drugs in this class

Other drugs that share this product’s specific therapeutic class — Progestational Agents.

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Where does this data come from?

Other drugs sharing this product’s First Databank therapeutic class (HIC3). Each links to that NDC’s page in our directory.