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DUTASTERIDE .5 mg Capsule, 90-count

by Banyan Pharma LLC · 90 CAPSULE in 1 BOTTLE (84091-100-90)
NDC 84091-0100-90
🏷️ FDA NDC (as labeled) 84091-100-90 billing pads the product segment with a zero
Rx only Generic On market Non-controlled
🗂️ Data synced Aug 13, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

🆔 Identity & classification

FDA NDC (as labeled) 84091-100-90
Product NDC 84091-100
11-digit billing NDC 84091010090
RxCUI 351172
UNII O0J6XJN02I
Application # ANDA204705
SPL Set ID 947644ea-bc35-41df-8a7a-874360c90192
Established class (EPC) 5-alpha Reductase Inhibitor
Mechanism of action 5-alpha Reductase Inhibitors
DEA schedule Non-controlled
Marketing category ANDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2025-12-31
Route ORAL
Dosage form CAPSULE
Substance DUTASTERIDE
Why two NDCs? The FDA registers this code as 84091-100-90 — 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 → 84091-0100-90. 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 5-alpha Reductase Inhibitor class.

Pharmacologic class 5-alpha Reductase Inhibitor
Drug family (ATC) Alpha-adrenoreceptor antagonists, Testosterone-5-alpha reductase inhibitors
How it works 5-alpha Reductase Inhibitors
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

LabelerBanyan Pharma LLC
Application holderPHARMOBEDIENT CONSULTING LLC
FDA applicationANDA204705 (ANDA)
Labeler code84091
First marketedDec 2025
Product typeHuman Prescription Drug
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

📗 Our plain-language guide HelloPharmacist
  • It takes time — don't expect overnight results. Most men start noticing improvement in urinary symptoms over several months, and the full benefit on prostate size can take up to 6...
  • How long does it take for dutasteride to actually work?
  • It's a real possibility, and your doctor should know if it becomes a problem. The most common sexual side effects are trouble getting or keeping an erection, lower sex drive, and c...
  • Will this medication affect my sex life?
📖 Read our full Dutasteride 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 5138Q19F1X
    Ammonia is a colorless gas made from nitrogen and hydrogen. It's used in medicines as a pH buffer to maintain the correct acidity level and help keep the product stable.
  • UNII 1P9D0Z171K
    BHT is a synthetic antioxidant that prevents fats and oils in medicines from breaking down and becoming rancid. It helps keep the product stable and effective during storage.
  • UNII U72Q2I8C85
    A mixture of fats derived from coconut oil that acts as an emulsifier and solubilizer. It helps blend oil and water-based ingredients together and improves how the body absorbs certain drugs.
  • UNII 1K09F3G675
    Ferric oxide red is an inorganic iron compound used as a colorant in medicines. It gives tablets, capsules, or other dosage forms a red or reddish tint for identification and appearance.
  • UNII EX438O2MRT
    Ferric oxide yellow is a naturally occurring iron compound used as a colorant in medications. It gives tablets, capsules, and other forms a yellow or golden hue for identification and appearance.
  • UNII XM0M87F357
    A dark iron oxide compound that gives medicines their black or dark color. It's used as a colorant in tablets and capsules to help identify the product and make it visually distinctive.
  • UNII 2G86QN327L
    Gelatin is a protein derived from animal collagen, commonly used in medicines as a gelling agent and capsule material. It helps create soft or hard capsule shells that hold and release medication, and can also thicken liquid formulations.
  • UNII PDC6A3C0OX
    Glycerin is a clear, thick liquid derived from plant oils or fats. It acts as a humectant to retain moisture, a sweetener, and a solvent in medications.
  • UNII 1DI56QDM62
    A natural fatty substance from soybeans that helps mix oil and water-based ingredients together. It acts as an emulsifier and lubricant in medicines to improve texture and help the product break down properly in your body.
  • UNII C9H2L21V7U
    A fat derived from coconut or palm oil containing shorter fatty acid chains. It serves as a solvent and carrier to help dissolve or suspend active ingredients, improving absorption and stability in liquid 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 46N107B71O
    Shellac is a natural resin secreted by the lac beetle. It's used as a coating on tablets and capsules to control how quickly the medicine dissolves and to improve appearance and stability.
  • 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.

13 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 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 $0.3715 $33.44 / 90 capsules
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
Dutasteride .5 mg 31722-0131-30 Camber 30 capsules $0.161 AB Availability likely
Dutasteride .5 mg 42806-0549-09 Epic 90 capsules $0.161 AB Availability likely
Dutasteride .5 mg 59651-0021-30 Aurobindo 30 capsules $0.161 AB Availability likely
Dutasteride .5 mg 64380-0763-04 Strides 30 capsules $0.172 AB Availability likely
Dutasteride .5 mg 65162-0750-03 Amneal 30 capsules $0.196 AB FDA listed
Dutasteride .5 mg 25000-0011-03 MARKSANS 30 capsules AB FDA listed
Dutasteride .5 mg 50090-4010-00 A-S 30 capsules AB FDA listed
Dutasteride .5 mg 50090-7305-00 A-S 30 capsules AB FDA listed
Dutasteride .5 mg 50090-7852-00 A-S 30 capsules AB FDA listed
Dutasteride .5 mg 63629-1222-01 Bryant 90 capsules AB FDA listed
Dutasteride .5 mg 63629-1223-01 Bryant 30 capsules AB FDA listed
Dutasteride .5 mg 63629-8207-01 Bryant 30 capsules AB FDA listed
Dutasteride .5 mg 68071-3732-06 NuCare 60 capsules AB FDA listed
Dutasteride .5 mg 68071-3757-06 NuCare 60 capsules AB FDA listed
Dutasteride .5 mg 68071-3857-09 NuCare 90 capsules AB FDA listed
Dutasteride .5 mg 68071-4821-09 NuCare 90 capsules AB FDA listed
Dutasteride .5 mg 71205-0039-30 Proficient 30 capsules AB FDA listed
Dutasteride .5 mg 71205-0278-30 Proficient 30 capsules AB FDA listed
Dutasteride .5 mg 72162-1296-03 Bryant 30 capsules AB FDA listed
Dutasteride .5 mg 72865-0140-30 XLCare 30 capsules AB FDA listed
Avodart .5 mg 80725-0712-04 Waylis 90 capsules AB Discontinued
Dutasteride .5 mgthis 84091-0100-90 Banyan 90 capsules 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

🏛️
2025
On the market since
Dec 2025
📍
2026
Currently FDA-listed
1 year 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 Dutasteride — the program that covers self-administered drugs. 5 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 Dutasteride. 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
$7.39M
Claims incl. refills
263K
Beneficiaries
209.4K
Spend / beneficiary
$35.31
Spend / claim
$28.11
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 Dutasteride — the ingredient across all brands.

Top reported reactions

Dyspnoea838
Fatigue666
Diarrhoea596
Dizziness565
Asthenia533
Fall508
Malaise450

Age at onset

Neonate8
Infant4
Child8
Adolescent2
Adult229
Elderly1,496

Reporter sex

9,120 reports
Male · 95%
Female · 5%
Unknown · 0%

Serious outcomes

Hospitalization3,266
Death1,161
Disabling313
Reports over time (by year) — tap or hover for the count & year
2021 2022 2024 2026 1,217 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 Marketing startStatus
84091-0100-90 You're viewing this 90 CAPSULE in 1 BOTTLE (84091-100-90) 2025-12-31 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 — Not published for this NDC No photo available yet for this listing.
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 — Not published for this NDC Applies only to products approved under an NDA/ANDA; many listings are out of scope.
HCPCS J-code billing crosswalk — Not published for this NDC Most self-administered / retail products have no J-code — that is normal.
Medicaid utilization (CMS SDUD) — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold.
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

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 84091-100-90, 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: 84091-0100-90, written without dashes as 84091010090. 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 84091-0100-90, the first segment (84091) is the labeler code FDA assigned to Banyan Pharma LLC; the middle segment (0100) 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 Banyan Pharma LLC. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
Banyan Pharma LLC 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 176 words

1 INDICATIONS AND USAGE Dutasteride is a 5 alpha-reductase inhibitor indicated for the treatment of symptomatic benign prostatic hyperplasia (BPH) in men with an enlarged prostate to: ( 1.1 ) improve symptoms, reduce the risk of acute urinary retention, and reduce the risk of the need for BPH-related surgery. Dutasteride in combination with the alpha adrenergic antagonist, tamsulosin, is indicated for the treatment of symptomatic BPH in men with an enlarged prostate. ( 1.2 ) Limitations of Use: Dutasteride is not approved for the prevention of prostate cancer.

( 1.3 )

1.1Monotherapy Dutasteride capsules are indicated for the treatment of symptomatic benign prostatic hyperplasia (BPH) in men with an enlarged prostate to: improve symptoms, reduce the risk of acute urinary retention (AUR), and reduce the risk of the need for BPH-related surgery.

1.2Combination With Alpha Adrenergic Antagonist Dutasteride in combination with the alpha adrenergic antagonist, tamsulosin, is indicated for the treatment of symptomatic BPH in men with an enlarged prostate.

1.3Limitations of Use Dutasteride is not approved for the prevention of prostate cancer.

⏱️ Dosage and Administration 115 words

2 DOSAGE AND ADMINISTRATION The capsules should be swallowed whole and not chewed or opened, as contact with the capsule contents may result in irritation of the oropharyngeal mucosa. Dutasteride may be administered with or without food. Monotherapy: 0.5 mg once daily. ( 2.1 ) Combination with tamsulosin: 0.5 mg once daily and tamsulosin 0.4 mg once daily. ( 2.2 ) Dosing considerations: Swallow whole. May take with or without food. ( 2 )

2.1Monotherapy The recommended dose of dutasteride is 1 capsule (0.5 mg) taken once daily.

2.2Combination With Alpha Adrenergic Antagonist The recommended dose of dutasteride is 1 capsule (0.5 mg) taken once daily and tamsulosin 0.4 mg taken once daily.

💊 Dosage Forms and Strengths 34 words

3 DOSAGE FORMS AND STRENGTHS 0.5-mg, light brown, oblong, soft gelatin capsule printed with black 'AV5' and containing a clear, slightly yellow to pale amber oily liquid. 0.5-mg soft gelatin capsules ( 3 )

Contraindications 168 words

4 CONTRAINDICATIONS Dutasteride is contraindicated for use in: Pregnancy. In animal reproduction and developmental toxicity trials, dutasteride inhibited development of male fetus external genitalia. Therefore, dutasteride may cause fetal harm when administered to a pregnant woman.

If dutasteride is used during pregnancy or if the patient becomes pregnant while taking dutasteride, the patient should be apprised of the potential hazard to the fetus [see Warnings and Precautions (5.4) , Use in Specific Populations (8.1) ] . Women of childbearing potential [see Warnings and Precautions (5.4) , Use in Specific Populations (8.1) ] . Pediatric patients [see Use in Specific Populations (8.4) ] .

Patients with previously demonstrated clinically significant hypersensitivity (e.g., serious skin reactions, angioedema) to dutasteride or other 5 alpha-reductase inhibitors [see Adverse Reactions (6.2) ] . Pregnancy and women of childbearing potential. ( 4 , 5.4 , 8.1 ) Pediatric patients.

( 4 ) Patients with previously demonstrated, clinically significant hypersensitivity (e.g., serious skin reactions, angioedema) to dutasteride or other 5 alpha-reductase inhibitors. ( 4 )

⚠️ Warnings and Cautions ~3 min read

5 WARNINGS AND PRECAUTIONS Dutasteride reduces serum prostate-specific antigen (PSA) concentration by approximately 50%. However, any confirmed increase in PSA while on dutasteride may signal the presence of prostate cancer and should be evaluated, even if those values are still within the normal range for untreated men. ( 5.1 ) Dutasteride may increase the risk of high-grade prostate cancer.

( 5.2 , 6.1 ) Prior to initiating treatment with dutasteride, consideration should be given to other urological conditions that may cause similar symptoms. ( 5.3 ) Women who are pregnant or could become pregnant should not handle dutasteride capsules due to potential risk to a male fetus. ( 5.4 , 8.1 ) Patients should not donate blood until 6 months after their last dose of dutasteride.

( 5.5 )

5.1Effects on Prostate-Specific Antigen (PSA) and the Use of PSA in Prostate Cancer Detection In clinical trials, dutasteride reduced serum PSA concentration by approximately 50% within 3 to 6 months of treatment. This decrease was predictable over the entire range of PSA values in patients with symptomatic BPH, although it may vary in individuals. Dutasteride may also cause decreases in serum PSA in the presence of prostate cancer.

To interpret serial PSAs in men taking dutasteride, a new PSA baseline should be established at least 3 months after starting treatment and PSA monitored periodically thereafter. Any confirmed increase from the lowest PSA value while on dutasteride may signal the presence of prostate cancer and should be evaluated, even if PSA levels are still within the normal range for men not taking a 5 alpha-reductase inhibitor. Noncompliance with dutasteride may also affect PSA test results.

To interpret an isolated PSA value in a man treated with dutasteride for 3 months or more, the PSA value should be doubled for comparison with normal values in untreated men. The free-to-total PSA ratio (percent free PSA) remains constant, even under the influence of dutasteride. If clinicians elect to use percent free PSA as an aid in the detection of prostate cancer in men receiving dutasteride, no adjustment to its value appears necessary.

Coadministration of dutasteride and tamsulosin resulted in similar changes to serum PSA as dutasteride monotherapy.

5.2Increased Risk of High-Grade Prostate Cancer In men aged 50 to 75 years with a prior negative biopsy for prostate cancer and a baseline PSA between 2.5 ng/mL and 10.0 ng/mL taking dutasteride in the 4-year Reduction by dutasteride of Prostate Cancer Events (REDUCE) trial, there was an increased incidence of Gleason score 8-10 prostate cancer compared with men taking placebo (dutasteride 1.0% versus placebo 0.5%) [see Indications and Usage (1.3) , Adverse Reactions (6.1) ] . In a 7-year placebo-controlled clinical trial with another 5 alpha-reductase inhibitor (finasteride 5 mg), similar results for Gleason score 8-10 prostate cancer were observed (finasteride 1.8% versus placebo 1.1%).

5 alpha-reductase inhibitors may increase the risk of development of high-grade prostate cancer. Whether the effect of 5 alpha-reductase inhibitors to reduce prostate volume or trial-related factors impacted the results of these trials has not been established.

5.3Evaluation for Other Urological Diseases Prior to initiating treatment with dutasteride, consideration should be given to other urological conditions that may cause similar symptoms. In addition, BPH and prostate cancer may coexist.

5.4Exposure of Women—Risk to Male Fetus Dutasteride capsules should not be handled by a woman who is pregnant or who could become pregnant. Dutasteride is absorbed through the skin and could result in unintended fetal exposure. If a woman who is pregnant or who could become pregnant comes in contact with leaking dutasteride capsules, the contact area should be washed immediately with soap and water [see Use in Specific Populations (8.1) ] .

5.5 Blood Donation Men being treated with dutasteride should not donate bloo…

🤒 Adverse Reactions ~3 min read

6 ADVERSE REACTIONS The most common adverse reactions, reported in ≥1% of patients treated with dutasteride and more commonly than in subjects treated with placebo, are impotence, decreased libido, ejaculation disorders, and breast disorders. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Banyan Pharma LLC at 1-888-328-0749 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 trial of another drug and may not reflect the rates observed in practice. From clinical trials with dutasteride as monotherapy or in combination with tamsulosin: The most common adverse reactions reported in subjects receiving dutasteride were impotence, decreased libido, breast disorders (including breast enlargement and tenderness), and ejaculation disorders.

The most common adverse reactions reported in subjects receiving combination therapy (dutasteride plus tamsulosin) were impotence, decreased libido, breast disorders (including breast enlargement and tenderness), ejaculation disorders, and dizziness. Ejaculation disorders occurred significantly more in subjects receiving combination therapy (11%) compared with those receiving dutasteride (2%) or tamsulosin (4%) as monotherapy. Trial withdrawal due to adverse reactions occurred in 4% of subjects receiving dutasteride and 3% of subjects receiving placebo in placebo-controlled trials with dutasteride.

The most common adverse reaction leading to trial withdrawal was impotence (1%). In the clinical trial evaluating the combination therapy, trial withdrawal due to adverse reactions occurred in 6% of subjects receiving combination therapy (dutasteride plus tamsulosin) and 4% of subjects receiving dutasteride or tamsulosin as monotherapy. The most common adverse reaction in all treatment arms leading to trial withdrawal was erectile dysfunction (1% to 1.5%).

Monotherapy : Over 4,300 male subjects with BPH were randomly assigned to receive placebo or 0.5-mg daily doses of dutasteride in 3 identical 2-year, placebo-controlled, double-blind, Phase 3 treatment trials, each followed by a 2-year open-label extension. During the double-blind treatment period, 2,167 male subjects were exposed to dutasteride, including 1,772 exposed for 1 year and 1,510 exposed for 2 years. When including the open-label extensions, 1,009 male subjects were exposed to dutasteride for 3 years and 812 were exposed for 4 years.

The population was aged 47 to 94 years (mean age: 66 years) and greater than 90% were Caucasian. Table 1 summarizes clinical adverse reactions reported in at least 1% of subjects receiving dutasteride and at a higher incidence than subjects receiving placebo. Table 1.

Adverse Reactions Reported in ≥1% of Subjects Over a 24-Month Period and More Frequently in the Group Receiving Dutasteride Than the Placebo Group (Randomized, Double-Blind, Placebo-Controlled Trials Pooled) by Time of Onset Adverse Reaction Dutasteride (n) Placebo (n) Adverse Reaction Time of Onset Months 0-6 (n = 2,167) (n = 2,158) Months 7-12 (n = 1,901) (n = 1,922) Months 13-18 (n = 1,725) (n = 1,714) Months 19-24 (n = 1,605) (n = 1,555) Impotence These sexual adverse reactions are associated with dutasteride treatment (including monotherapy and combination with tamsulosin).

These adverse reactions may persist after treatment discontinuation. The role of dutasteride in this persistence is unknown. Dutasteride 4.7% 1.4% 1.0% 0.8% Placebo 1.7% 1.5% 0.5% 0.9% Decreased libido Dutasteride 3.0% 0.7% 0.3% 0.3% Placebo 1.4% 0.6% 0.2% 0.1% Ejaculation disorders Dutasteride 1.4% 0.5% 0.5% 0.1% Placebo 0.5% 0.3% 0.1% 0.0% Breast disorders Includes breast tenderness and breast enlargement.

Dutasteride 0.5% 0.8% 1.1% 0.6% Placebo 0.2% 0.3% 0.3% 0.1% Long-Term Treatment (Up to 4 Years): High-Grade Prostate Cancer: The REDUCE trial was…

🔄 Drug Interactions ~1 min read

7 DRUG INTERACTIONS Use with caution in patients taking potent, chronic CYP3A4 enzyme inhibitors (e.g., ritonavir). ( 7 )

7.1Cytochrome P450 3A Inhibitors Dutasteride is extensively metabolized in humans by the CYP3A4 and CYP3A5 isoenzymes. The effect of potent CYP3A4 inhibitors on dutasteride has not been studied. Because of the potential for drug-drug interactions, use caution when prescribing dutasteride to patients taking potent, chronic CYP3A4 enzyme inhibitors (e.g., ritonavir) [see Clinical Pharmacology (12.3) ] .

7.2Alpha Adrenergic Antagonists The administration of dutasteride in combination with tamsulosin or terazosin has no effect on the steady-state pharmacokinetics of either alpha adrenergic antagonist. The effect of administration of tamsulosin or terazosin on dutasteride pharmacokinetic parameters has not been evaluated.

7.3Calcium Channel Antagonists Coadministration of verapamil or diltiazem decreases dutasteride clearance and leads to increased exposure to dutasteride. The change in dutasteride exposure is not considered to be clinically significant. No dose adjustment is recommended [see Clinical Pharmacology (12.3) ] .

7.4Cholestyramine Administration of a single 5-mg dose of dutasteride followed 1 hour later by 12 g of cholestyramine does not affect the relative bioavailability of dutasteride [see Clinical Pharmacology (12.3) ] .

7.5Digoxin Dutasteride does not alter the steady-state pharmacokinetics of digoxin when administered concomitantly at a dose of 0.5 mg/day for 3 weeks [see Clinical Pharmacology (12.3) ] .

7.6Warfarin Concomitant administration of dutasteride 0.5 mg/day for 3 weeks with warfarin does not alter the steady-state pharmacokinetics of the S- or R-warfarin isomers or alter the effect of warfarin on prothrombin time [see Clinical Pharmacology (12.3) ] .

👥 Use in Specific Populations ~3 min read

8 USE IN SPECIFIC POPULATIONS

8.1Pregnancy Teratogenic Effects Pregnancy Category X. Dutasteride is contraindicated for use in women of childbearing potential and during pregnancy. Dutasteride is a 5 alpha-reductase inhibitor that prevents conversion of testosterone to dihydrotestosterone (DHT), a hormone necessary for normal development of male genitalia.

In animal reproduction and developmental toxicity trials, dutasteride inhibited normal development of external genitalia in male fetuses. Therefore, dutasteride may cause fetal harm when administered to a pregnant woman. If dutasteride is used during pregnancy or if the patient becomes pregnant while taking dutasteride, the patient should be apprised of the potential hazard to the fetus.

Abnormalities in the genitalia of male fetuses is an expected physiological consequence of inhibition of the conversion of testosterone to DHT by 5 alpha-reductase inhibitors. These results are similar to observations in male infants with genetic 5 alpha-reductase deficiency. Dutasteride is absorbed through the skin.

To avoid potential fetal exposure, women who are pregnant or could become pregnant should not handle dutasteride capsules. If contact is made with leaking capsules, the contact area should be washed immediately with soap and water [see Warnings and Precautions (5.4) ] . Dutasteride is secreted into semen.

The highest measured semen concentration of dutasteride in treated men was 14 ng/mL. Assuming exposure of a 50-kg woman to 5 mL of semen and 100% absorption, the woman's dutasteride concentration would be about 0.0175 ng/mL. This concentration is more than 100 times less than concentrations producing abnormalities of male genitalia in animal trials.

Dutasteride is highly protein bound in human semen (greater than 96%), which may reduce the amount of dutasteride available for vaginal absorption. In an embryo-fetal development trial in female rats, oral administration of dutasteride at doses 10 times less than the maximum recommended human dose (MRHD) of 0.5 mg daily resulted in abnormalities of male genitalia in the fetus (decreased anogenital distance at 0.05 mg/kg/day), nipple development, hypospadias, and distended preputial glands in male offspring (at all doses of 0.05, 2.5, 12.5, and 30 mg/kg/day).

An increase in stillborn pups was observed at 111 times the MRHD, and reduced fetal body weight was observed at doses of about 15 times the MRHD (animal dose of 2.5 mg/kg/day). Increased incidences of skeletal variations considered to be delays in ossification associated with reduced body weight were observed at doses about 56 times the MRHD (animal dose of 12.5 mg/kg/day). In a rabbit embryo-fetal trial, doses 28- to 93-fold the MRHD (animal doses of 30, 100, and 200 mg/kg/day) were administered orally during the period of major organogenesis (gestation days 7 to 29) to encompass the late period of external genitalia development.

Histological evaluation of the genital papilla of fetuses revealed evidence of feminization of the male fetus at all doses. A second embryo-fetal trial in rabbits at 0.3- to 53-fold the expected clinical exposure (animal doses of 0.05, 0.4, 3.0, and 30 mg/kg/day) also produced evidence of feminization of the genitalia in male fetuses at all doses. In an oral pre- and post-natal development trial in rats, dutasteride doses of 0.05, 2.5, 12.5, or 30 mg/kg/day were administered.

Unequivocal evidence of feminization of the genitalia (i.e., decreased anogenital distance, increased incidence of hypospadias, nipple development) of male offspring occurred at 14- to 90-fold the MRHD (animal doses of 2.5 mg/kg/day or greater). At 0.05-fold the expected clinical exposure (animal dose of 0.05 mg/kg/day), evidence of feminization was limited to a small, but statistically significant, decrease in anogenital distance. Animal doses of 2.5 to 30 mg/kg/day resulted in prolonged gestation in the parental females and a decrease in time to vaginal patency for female offsp…

🤰 Pregnancy ~3 min read

8.1Pregnancy Teratogenic Effects Pregnancy Category X. Dutasteride is contraindicated for use in women of childbearing potential and during pregnancy. Dutasteride is a 5 alpha-reductase inhibitor that prevents conversion of testosterone to dihydrotestosterone (DHT), a hormone necessary for normal development of male genitalia.

In animal reproduction and developmental toxicity trials, dutasteride inhibited normal development of external genitalia in male fetuses. Therefore, dutasteride may cause fetal harm when administered to a pregnant woman. If dutasteride is used during pregnancy or if the patient becomes pregnant while taking dutasteride, the patient should be apprised of the potential hazard to the fetus.

Abnormalities in the genitalia of male fetuses is an expected physiological consequence of inhibition of the conversion of testosterone to DHT by 5 alpha-reductase inhibitors. These results are similar to observations in male infants with genetic 5 alpha-reductase deficiency. Dutasteride is absorbed through the skin.

To avoid potential fetal exposure, women who are pregnant or could become pregnant should not handle dutasteride capsules. If contact is made with leaking capsules, the contact area should be washed immediately with soap and water [see Warnings and Precautions (5.4) ] . Dutasteride is secreted into semen.

The highest measured semen concentration of dutasteride in treated men was 14 ng/mL. Assuming exposure of a 50-kg woman to 5 mL of semen and 100% absorption, the woman's dutasteride concentration would be about 0.0175 ng/mL. This concentration is more than 100 times less than concentrations producing abnormalities of male genitalia in animal trials.

Dutasteride is highly protein bound in human semen (greater than 96%), which may reduce the amount of dutasteride available for vaginal absorption. In an embryo-fetal development trial in female rats, oral administration of dutasteride at doses 10 times less than the maximum recommended human dose (MRHD) of 0.5 mg daily resulted in abnormalities of male genitalia in the fetus (decreased anogenital distance at 0.05 mg/kg/day), nipple development, hypospadias, and distended preputial glands in male offspring (at all doses of 0.05, 2.5, 12.5, and 30 mg/kg/day).

An increase in stillborn pups was observed at 111 times the MRHD, and reduced fetal body weight was observed at doses of about 15 times the MRHD (animal dose of 2.5 mg/kg/day). Increased incidences of skeletal variations considered to be delays in ossification associated with reduced body weight were observed at doses about 56 times the MRHD (animal dose of 12.5 mg/kg/day). In a rabbit embryo-fetal trial, doses 28- to 93-fold the MRHD (animal doses of 30, 100, and 200 mg/kg/day) were administered orally during the period of major organogenesis (gestation days 7 to 29) to encompass the late period of external genitalia development.

Histological evaluation of the genital papilla of fetuses revealed evidence of feminization of the male fetus at all doses. A second embryo-fetal trial in rabbits at 0.3- to 53-fold the expected clinical exposure (animal doses of 0.05, 0.4, 3.0, and 30 mg/kg/day) also produced evidence of feminization of the genitalia in male fetuses at all doses. In an oral pre- and post-natal development trial in rats, dutasteride doses of 0.05, 2.5, 12.5, or 30 mg/kg/day were administered.

Unequivocal evidence of feminization of the genitalia (i.e., decreased anogenital distance, increased incidence of hypospadias, nipple development) of male offspring occurred at 14- to 90-fold the MRHD (animal doses of 2.5 mg/kg/day or greater). At 0.05-fold the expected clinical exposure (animal dose of 0.05 mg/kg/day), evidence of feminization was limited to a small, but statistically significant, decrease in anogenital distance. Animal doses of 2.5 to 30 mg/kg/day resulted in prolonged gestation in the parental females and a decrease in time to vaginal patency for female offspring and a decrease in prostat…

🧒 Pediatric Use 21 words

8.4Pediatric Use Dutasteride is contraindicated for use in pediatric patients. Safety and effectiveness in pediatric patients have not been established.

🧓 Geriatric Use 77 words

8.5Geriatric Use Of 2,167 male subjects treated with dutasteride in 3 clinical trials, 60% were aged 65 years and older and 15% were aged 75 years and older. No overall differences in safety or efficacy were observed between these subjects and younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out [see Clinical Pharmacology (12.3) ] .

🆘 Overdosage 94 words

10 OVERDOSAGE In volunteer trials, single doses of dutasteride up to 40 mg (80 times the therapeutic dose) for 7 days have been administered without significant safety concerns. In a clinical trial, daily doses of 5 mg (10 times the therapeutic dose) were administered to 60 subjects for 6 months with no additional adverse effects to those seen at therapeutic doses of 0.5 mg. There is no specific antidote for dutasteride.

Therefore, in cases of suspected overdosage, symptomatic and supportive treatment should be given as appropriate, taking the long half-life of dutasteride into consideration.

🧬 Clinical Pharmacology ~3 min read

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Dutasteride inhibits the conversion of testosterone to dihydrotestosterone (DHT). DHT is the androgen primarily responsible for the initial development and subsequent enlargement of the prostate gland. Testosterone is converted to DHT by the enzyme 5 alpha-reductase, which exists as 2 isoforms, type 1 and type 2.

The type 2 isoenzyme is primarily active in the reproductive tissues, while the type 1 isoenzyme is also responsible for testosterone conversion in the skin and liver. Dutasteride is a competitive and specific inhibitor of both type 1 and type 2 5 alpha-reductase isoenzymes, with which it forms a stable enzyme complex. Dissociation from this complex has been evaluated under in vitro and in vivo conditions and is extremely slow.

Dutasteride does not bind to the human androgen receptor.

12.2Pharmacodynamics Effect on 5 Alpha-Dihydrotestosterone and Testosterone: The maximum effect of daily doses of dutasteride on the reduction of DHT is dose dependent and is observed within 1 to 2 weeks. After 1 and 2 weeks of daily dosing with dutasteride 0.5 mg, median serum DHT concentrations were reduced by 85% and 90%, respectively. In patients with BPH treated with dutasteride 0.5 mg/day for 4 years, the median decrease in serum DHT was 94% at 1 year, 93% at 2 years, and 95% at both 3 and 4 years.

The median increase in serum testosterone was 19% at both 1 and 2 years, 26% at 3 years, and 22% at 4 years, but the mean and median levels remained within the physiologic range. In patients with BPH treated with 5 mg/day of dutasteride or placebo for up to 12 weeks prior to transurethral resection of the prostate, mean DHT concentrations in prostatic tissue were significantly lower in the dutasteride group compared with placebo (784 and 5,793 pg/g, respectively, P <0.001). Mean prostatic tissue concentrations of testosterone were significantly higher in the dutasteride group compared with placebo (2,073 and 93 pg/g, respectively, P <0.001).

Adult males with genetically inherited type 2 5 alpha-reductase deficiency also have decreased DHT levels. These 5 alpha-reductase-deficient males have a small prostate gland throughout life and do not develop BPH. Except for the associated urogenital defects present at birth, no other clinical abnormalities related to 5 alpha-reductase deficiency have been observed in these individuals.

Effects on Other Hormones: In healthy volunteers, 52 weeks of treatment with dutasteride 0.5 mg/day (n = 26) resulted in no clinically significant change compared with placebo (n = 23) in sex hormone-binding globulin, estradiol, luteinizing hormone, follicle-stimulating hormone, thyroxine (free T4), and dehydroepiandrosterone. Statistically significant, baseline-adjusted mean increases compared with placebo were observed for total testosterone at 8 weeks (97.1 ng/dL, P <0.003) and thyroid-stimulating hormone at 52 weeks (0.4 mcIU/mL, P <0.05).

The median percentage changes from baseline within the dutasteride group were 17.9% for testosterone at 8 weeks and 12.4% for thyroid-stimulating hormone at 52 weeks. After stopping dutasteride for 24 weeks, the mean levels of testosterone and thyroid-stimulating hormone had returned to baseline in the group of subjects with available data at the visit. In subjects with BPH treated with dutasteride in a large randomized, double-blind, placebo-controlled trial, there was a median percent increase in luteinizing hormone of 12% at 6 months and 19% at both 12 and 24 months.

Other Effects: Plasma lipid panel and bone mineral density were evaluated following 52 weeks of dutasteride 0.5 mg once daily in healthy volunteers. There was no change in bone mineral density as measured by dual energy x-ray absorptiometry compared with either placebo or baseline. In addition, the plasma lipid profile (i.e., total cholesterol, low density lipoproteins, high density lipoproteins, and triglycerides) was unaffected by dutasteride.

No clinically si…

🧬 Mechanism of Action 129 words

12.1Mechanism of Action Dutasteride inhibits the conversion of testosterone to dihydrotestosterone (DHT). DHT is the androgen primarily responsible for the initial development and subsequent enlargement of the prostate gland. Testosterone is converted to DHT by the enzyme 5 alpha-reductase, which exists as 2 isoforms, type 1 and type 2.

The type 2 isoenzyme is primarily active in the reproductive tissues, while the type 1 isoenzyme is also responsible for testosterone conversion in the skin and liver. Dutasteride is a competitive and specific inhibitor of both type 1 and type 2 5 alpha-reductase isoenzymes, with which it forms a stable enzyme complex. Dissociation from this complex has been evaluated under in vitro and in vivo conditions and is extremely slow.

Dutasteride does not bind to the human androgen receptor.

📦 How Supplied / Storage and Handling 106 words

16 HOW SUPPLIED/STORAGE AND HANDLING Dutasteride capsules 0.5 mg are light brown, oblong, soft gelatin capsule printed with black 'AV5' and containing a clear, slightly yellow to pale amber oily liquid packaged in bottles of 30 (NDC 84091-100-30) and 90 (NDC 84091-100-90) with child-resistant closures. Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature]. Dutasteride is absorbed through the skin.

Dutasteride capsules should not be handled by women who are pregnant or who could become pregnant because of the potential for absorption of dutasteride and the subsequent potential risk to a developing male fetus [see Warnings and Precautions (5.4) ] .

📦 Storage and Handling 61 words

Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature]. Dutasteride is absorbed through the skin. Dutasteride capsules should not be handled by women who are pregnant or who could become pregnant because of the potential for absorption of dutasteride and the subsequent potential risk to a developing male fetus [see Warnings and Precautions (5.4) ] .

📋 Description 172 words

11 DESCRIPTION Dutasteride is a synthetic 4-azasteroid compound that is a selective inhibitor of both the type 1 and type 2 isoforms of steroid 5 alpha-reductase, an intracellular enzyme that converts testosterone to DHT. Dutasteride is chemically designated as (5α,17β)-N-{2,5 bis(trifluoromethyl)phenyl}-3-oxo-4-azaandrost-1-ene-17-carboxamide. The empirical formula of dutasteride is C 27 H 30 F 6 N 2 O 2 , representing a molecular weight of 528.5 with the following structural formula: Dutasteride is a white to pale yellow powder with a melting point of 242° to 250°C.

It is soluble in ethanol (44 mg/mL), methanol (64 mg/mL), and polyethylene glycol 400 (3 mg/mL), but it is insoluble in water. Each dutasteride capsule, administered orally, contains 0.5 mg of dutasteride dissolved in a mixture of mono-di-glycerides of caprylic/capric acid and butylhydroxytoluene. The inactive excipients are glycerol, gelatin, titanium dioxide, yellow iron oxide, red iron oxide, mono and di-glycerides, butylhydroxytoluene, lecithin, medium chain triglycerides and black ink.

The non-volatile ingredients of the black ink are ammonium hydroxide, black iron oxide, propylene glycol and shellac. Chemical Structure

💬 Information for Patients ~1 min read

17 PATIENT COUNSELING INFORMATION See FDA-approved patient labeling ( Patient Information ).

17.1PSA Monitoring Physicians should inform patients that dutasteride reduces serum PSA levels by approximately 50% within 3 to 6 months of therapy, although it may vary for each individual. For patients undergoing PSA screening, increases in PSA levels while on treatment with dutasteride may signal the presence of prostate cancer and should be evaluated by a healthcare provider [see Warnings and Precautions (5.1) ] .

17.2Increased Risk of High-Grade Prostate Cancer Physicians should inform patients that there was an increase in high-grade prostate cancer in men treated with 5 alpha-reductase inhibitors (which are indicated for BPH treatment), including dutasteride, compared with those treated with placebo in trials looking at the use of these drugs to reduce the risk of prostate cancer [see Indications and Usage (1.3) , Warnings and Precautions (5.2) , Adverse Reactions (6.1) ] .

17.3Exposure of Women—Risk to Male Fetus Physicians should inform patients that dutasteride capsules should not be handled by a woman who is pregnant or who could become pregnant because of the potential for absorption of dutasteride and the subsequent potential risk to a developing male fetus. Dutasteride is absorbed through the skin and could result in unintended fetal exposure. If a pregnant woman or woman of childbearing potential comes in contact with leaking dutasteride capsules, the contact area should be washed immediately with soap and water [see Warnings and Precautions (5.4) , Use in Specific Populations (8.1) ] .

17.4Blood Donation Physicians should inform men treated with dutasteride that they should not donate blood until at least 6 months following their last dose to prevent pregnant women from receiving dutasteride through blood transfusion [see Warnings and Precautions (5.5) ] . Serum levels of dutasteride are detectable for 4 to 6 months after treatment ends [see Clinical Pharmacology (12.3) ] .

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.