Finasteride
Finasteride is a 5α-reductase inhibitor used in men to treat symptomatic benign prostatic hyperplasia (BPH, an enlarged prostate) and male pattern hair loss, depending on the product.
🧬 Where this information comes from Click to expand
The clinical label records used on this page are FDA-filed Structured Product Labeling (SPL) retrieved through openFDA. We identified 78 clinical label sets within the page’s selected clinical scope after exact ingredient or ingredient-combination matching and applicable route/form matching. Forms, routes, brands, labelers, strengths, and NDC product-record counts are built separately from matching FDA National Drug Code Directory records. The linked DailyMed document is a representative official source for verification, not the page’s only clinical source. View the linked label on DailyMed →
Finasteride treats an enlarged prostate (BPH) or male pattern hair loss, depending on the product, by blocking the enzyme that turns testosterone into DHT, the stronger hormone behind both; a well-established standby since the early 1990s, it is available as a generic. Most men tolerate it well, and what they notice, if anything, is sexual, such as lower sex drive, weaker erections or less semen. It roughly halves PSA (a prostate blood test), so any confirmed rise from your lowest reading needs a prostate cancer check, even if the number looks normal. Pregnant women should not handle crushed or broken tablets, since it can harm a developing male baby.
Clinical pearls
- For hair loss, allow three months of daily use before judging; gains reverse within a year of stopping.
- Paired with doxazosin for BPH, dizziness and lightheadedness on standing are more common, so get up slowly.
- Intact coated tablets are fine to handle; a woman who touches a broken one should wash with soap and water.
- Report any breast lump, pain or nipple discharge promptly, because male breast cancer has been reported.
Patient information guide A plain-language walkthrough of Finasteride, written from its FDA label.
What Finasteride is used for
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Finasteride is used in men for these conditions, depending on the product:
- Proscar and finasteride tablets labeled for BPH: symptomatic benign prostatic hyperplasia (BPH) in men with an enlarged prostate, to improve symptoms.
- The same BPH products: to reduce the risk of acute urinary retention.
- The same BPH products: to reduce the risk of needing surgery, including TURP and prostatectomy.
- The same BPH products, taken with doxazosin: to reduce the risk of symptomatic BPH progression.
- Propecia and finasteride tablets labeled for hair loss: male pattern hair loss (androgenetic alopecia) in men only.
The BPH products are not approved to prevent prostate cancer. The hair loss products are not for women.
How Finasteride works
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Prostate growth depends on DHT, a potent hormone made when the enzyme Type II 5α-reductase converts testosterone. Finasteride blocks this enzyme and binds to it very slowly and tightly. This lowers DHT in the blood and prostate. Finasteride does not bind to the androgen receptor itself.
Finasteride dosage
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Finasteride is a once-daily tablet taken by mouth, with or without food. The BPH products and the hair loss products are separate, so take only the one prescribed to you.
- BPH products (Proscar, finasteride tablets for BPH): taken once a day, alone or together with doxazosin.
- Hair loss products (Propecia, finasteride tablets for hair loss): taken once daily. Benefit generally takes three months or more of daily use. Continued use is needed to keep results, and effects reverse within 12 months of stopping.
Follow your prescriber's directions and your product's label.
Dosing details from the FDA-approved label
From the Finasteride prescribing information (“Dosage and Administration”). Doses are set by your prescriber for your product, condition, kidney function and age — never change a dose on your own.
- Monotherapy (Proscar / finasteride 5 mg)
- One tablet (5 mg) taken once a day
- May be administered with or without meals
- Combination with Alpha-Blocker (doxazosin) (Proscar / finasteride 5 mg)
- One tablet (5 mg) taken once a day in combination with the alpha-blocker doxazosin
- May be administered with or without meals
- Propecia / finasteride 1 mg
- One tablet (1 mg) taken once daily
- In general, daily use for three months or more is necessary before benefit is observed
- May be administered with or without meals; continued use is recommended to sustain benefit, which should be re-evaluated periodically; withdrawal of treatment leads to reversal of effect within 12 months
Read the label’s full dosing text
2 DOSAGE AND ADMINISTRATION Finasteride tablets 5 mg may be administered with or without meals. Finasteride may be administered with or without meals ( 2 ). Monotherapy: One tablet (5 mg) taken once a day ( 2.1 ). Combination with Doxazosin: One tablet (5 mg) taken once a day in combination with the alpha-blocker doxazosin ( 2.2 ). 2.1 Monotherapy The recommended dose of finasteride tablets 5 mg is one tablet (5 mg) taken once a day [see Clinical Studies (14.1) ] . 2.2 Combination with Alpha-Blocker The recommended dose of finasteride tablets 5 mg is one tablet (5 mg) taken once a day in combination with the alpha-blocker doxazosin [see Clinical Studies (14.2) ] .
Read the full Dosage and Administration section on DailyMed →
Finasteride side effects
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The most common side effects relate to sexual function.
Common side effects
- Impotence (trouble getting or keeping an erection)
- Decreased sex drive (libido)
- Decreased amount of semen (ejaculate volume)
- Ejaculation problems
- Breast enlargement
- Breast tenderness
- Rash
- Ejaculation disorder
When to get medical help
- Get emergency help for signs of a severe allergic reaction, such as swelling of the lips, tongue, throat or face, hives or itching.
- Call your doctor about any breast lumps, pain or nipple discharge, since male breast cancer has been reported.
- Call your doctor if you have testicular pain.
- Tell your doctor if you feel depressed.
- Tell your doctor if sexual problems, including trouble with orgasm, continue after you stop the medicine.
- Tell your doctor if you notice blood in your semen.
- Report any confirmed rise in your PSA (a prostate blood test) so it can be checked for prostate cancer.
In studies, these were most noticeable in the first year and did not increase with longer treatment. Seek help right away for swelling of the face, lips, tongue or throat. Tell your doctor about breast lumps, testicular pain, depression, or sexual problems that continue after stopping.
Finasteride warnings and precautions
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- Pregnancy exposure: Finasteride can cause abnormal genital development in a male fetus. Pregnant women or women who may be pregnant must not handle crushed or broken tablets.
- PSA changes: Finasteride lowers PSA by about 50%. Any confirmed rise should be evaluated, even if within the normal range.
- High-grade prostate cancer: A 7-year trial found a higher rate of Gleason 8 to 10 prostate cancer with finasteride (1.8% vs 1.1% with placebo).
- Semen: Ejaculate volume dropped by a median of 0.6 mL (22.1%) in a study, within the normal range. It was reversible after stopping.
- Breast cancer: Male breast cancer has been reported. The relationship to long-term use is unknown.
Finasteride interactions
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No drug interactions of clinical importance have been identified.
- Finasteride does not appear to affect the liver enzyme system (cytochrome P450) that processes many drugs.
- No meaningful interactions were found with digoxin, propranolol, theophylline or warfarin.
- With doxazosin, dizziness, weakness, low blood pressure on standing and sexual side effects were more common than with either drug alone.
Interactions listed in the FDA-approved label
From the Finasteride prescribing information (“Drug Interactions”): what the manufacturer studied or reported to the FDA.
- Cytochrome P450-linked drug metabolizing enzyme system: No drug interactions of clinical importance have been identified; finasteride does not appear to affect the cytochrome P450-linked drug metabolizing enzyme system.
- Antipyrine, digoxin, propranolol, theophylline, warfarin: Tested in man and no clinically meaningful interactions were found.
- Acetaminophen, acetylsalicylic acid, α-blockers, ACE inhibitors, analgesics, anti-convulsants, beta-adrenergic blocking agents, diuretics, calcium channel blockers, cardiac nitrates, HMG-CoA reductase inhibitors, NSAIDs, benzodiazepines, H2 antagonists, quinolone anti-infectives: Used concomitantly in clinical studies without evidence of clinically significant adverse interactions, although specific interaction studies were not performed.
Read the label’s full interactions text
7 DRUG INTERACTIONS 7.1 Cytochrome P450-Linked Drug Metabolizing Enzyme System No drug interactions of clinical importance have been identified. Finasteride does not appear to affect the cytochrome P450-linked drug metabolizing enzyme system. Compounds that have been tested in man have included antipyrine, digoxin, propranolol, theophylline, and warfarin and no clinically meaningful interactions were found. 7.2 Other Concomitant Therapy Although specific interaction studies were not performed, finasteride tablets was concomitantly used in clinical studies with acetaminophen, acetylsalicylic acid, α-blockers, angiotensin-converting enzyme (ACE) inhibitors, analgesics, anti-convulsants, beta-adrenergic blocking agents, diuretics, calcium channel blockers, cardiac nitrates, HMG-CoA reductase inhibitors, nonsteroidal anti-inflammatory drugs (NSAIDs), benzodiazepines, H 2 antagonists and quinolone anti-infectives without evidence of clinically significant adverse interactions.
Not a complete list. The label covers the interactions the manufacturer studied or reported, and our own interaction database does not cover every medicine either. Bring your full medication list, including vitamins and herbal products, to your pharmacist.
Before taking Finasteride
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- Do not take it if you are allergic to any ingredient.
- It is contraindicated in women who are or may be pregnant.
- It is not for use in women or children.
- If you have BPH, your doctor should first rule out other urinary conditions with similar symptoms.
- Men with a large amount of leftover urine or very weak urine flow need close monitoring and may not be candidates.
- Tell any doctor who orders a PSA test that you take finasteride.
Finasteride overdose
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In studies, people took single doses of up to 400 mg and multiple doses of up to 80 mg a day for three months without side effects. No specific treatment for overdose can be recommended. If you take too much, contact your doctor or poison control.
What Finasteride does in the body
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A single dose rapidly lowers blood DHT, with the maximum effect at about 8 hours, and the effect lasts through the 24-hour dosing interval. Daily use for up to 4 years lowers DHT by about 70%. Testosterone rises about 10 to 20% but stays in the normal range. Prostate volume fell by about 20% in men treated for three months and returned close to baseline about three months after stopping. DHT returns to pretreatment levels about 2 weeks after stopping.
How your body processes Finasteride
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Finasteride is absorbed by mouth, with average bioavailability of about 63% for the 5-mg tablet. Peak levels occur 1 to 2 hours after a dose, and food does not affect absorption. About 90% is bound to proteins in the blood. It crosses the blood-brain barrier, and levels build up slowly with repeated dosing. It binds very slowly to its enzyme target (half-life of the complex about 30 days).
How to store Finasteride
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Store at room temperatures below 30°C (86°F). Protect from light and keep container tightly closed.
Written from the FDA-approved label with AI and reviewed by our pharmacy team. How we use AI →
Supplements & herbs that interact with Finasteride
138 supplements and herbal products have documented interactions with Finasteride in the licensed clinical database we use. Most are manageable — but your pharmacist should know about everything you take, including vitamins and herbals.
- Major · 3
- Moderate · 94
- Minor · 41
Educational information from a licensed clinical database (Natural Medicines) — see our data sources & update cadence. Not medical advice: an interaction being documented does not mean it will happen to you; do not start or stop medications or supplements without professional guidance.
Finasteride: pharmacist answers to common questions
Quick, plain-English answers to the questions patients ask most about Finasteride — the kind of thing our pharmacy team would talk through with you at the counter.
What is finasteride used for?
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How do I take it?
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What side effects should I expect?
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When should I call my doctor?
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Does finasteride affect my PSA test?
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Is it safe around pregnant women?
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Is Finasteride available over the counter?
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When was Finasteride first available?
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Who makes Finasteride?
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Answers drafted from the FDA-approved label with AI and reviewed by our pharmacy team. How we use AI →
More about Finasteride on HelloPharmacist
Finasteride forms and strengths (how it comes)
Finasteride is available in 1 form. Different forms and brands can have different approved uses, doses, schedules, and directions. Follow the instructions for your exact product, and do not switch forms without guidance from your prescriber or pharmacist.
Tablet
How this form is used
- Proscar is used to treat symptomatic BPH in men with an enlarged prostate, and with doxazosin to reduce the risk of BPH symptoms getting worse.
- Propecia is used to treat male pattern hair loss (androgenetic alopecia) in men only.
- Finasteride tablets labeled for BPH treat symptomatic BPH, and are not approved to prevent prostate cancer.
- Finasteride tablets labeled for hair loss treat male pattern hair loss in men only.
- Proscar is taken by mouth once a day, with or without meals.
- Propecia is taken by mouth once daily with or without meals. Three months or more of daily use is generally needed before benefit.
- Finasteride tablets labeled for BPH are taken once a day, alone or with doxazosin, with or without meals.
- Finasteride tablets labeled for hair loss are taken once daily with or without meals. Stopping leads to reversal of effect within 12 months.
Finasteride on the U.S. market: products, makers and brands
How Finasteride appears in the FDA’s National Drug Code Directory — including its dosage forms, strengths, brand names, manufacturers, and FDA-listed product records. These are directory records, not sales or prescription volume.
30 companies list 73 Finasteride product records with the FDA, mostly as tablet; the earliest marketing or approval year on record is 1992. Brand names on the directory include Propecia, Proscar; the rest are generics.
Also listed with the FDA, not a patient dose form: Powder (25) — bulk drug substance sold to compounders/manufacturers and multi-item kits. These aren’t counted in the dose-form total above.
Share of FDA-listed product records by manufacturer — FDA National Drug Code Directory. Record counts are not sales or prescription volume.
How widely Finasteride is used (Medicaid data)
A general measure of how commonly Finasteride is prescribed, based on Medicaid — one of the largest public drug programs. The figure below is prescriptions filled in Q1–Q4 2025, summed across every form and brand of the drug.
Think of this as a proxy for how widely Finasteride is used, drawn from freely available public data. Medicaid is just one program — these numbers don’t include Medicare, other government coverage, or commercial and cash-pay prescriptions, so real-world use is higher than what’s shown here.
How commonly is Finasteride prescribed? Of the 1,601 medications we measure, Finasteride ranks #294 by Medicaid prescriptions — more than 82% of them.
Utilization by Finasteride product
Pick a product to see its own Medicaid numbers. Each chip is one clinical product — a specific strength & dosage form as defined by RxNorm — with brand-name and generic versions combined.
finasteride 5 MG Oral Tablet Most dispensed
Summed across the 29 of 207 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 310346
finasteride 1 MG Oral Tablet
Summed across the 9 of 80 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 200172
Shares are of the Medicaid prescriptions shown here. Product grouping follows RxNorm (the National Library of Medicine’s drug terminology), so “one product” means one strength & dosage form regardless of manufacturer. Dollar figures are gross Medicaid reimbursement before mandatory rebates — rebates (often large, especially for brand-name drugs) are confidential, so actual net cost to Medicaid is lower than shown.
Source: Medicaid State Drug Utilization Data (CMS), aggregated by generic ingredient — summed across every NDC (all brands, strengths, salt forms and dosage forms) of Finasteride, and across all states and both fee-for-service and managed-care claims. A general popularity signal; it excludes Medicare, commercial insurance and cash prescriptions, so it is not total U.S. use. Based on the 38 of 287 listed Finasteride NDCs with Medicaid activity.
Compare Finasteride products
A representative set of FDA-listed product records for Finasteride — across manufacturers, strengths, and dosage forms, grouped by form with each product’s manufacturer and how the FDA approved it. The same medicine may be made and packaged by different companies, so a single drug can have many directory entries. (It’s also why a refill can look different — a new shape, color, or box — even though it contains the same medication.)
| Strength | Route | Manufacturer / Labeler | Category ⓘ | Details |
|---|---|---|---|---|
| 💊Tablet | ||||
| 1 mg | Oral | A-S Medication Solutions | ANDA | View NDC → |
| 5 mg | Oral | A-S Medication Solutions × 6 listings | ANDA | View NDC → |
| 1 mg | Oral | Accord Healthcare, Inc. | ANDA | View NDC → |
| 5 mg | Oral | Accord Healthcare, Inc. | ANDA | View NDC → |
| 5 mg | Oral | American Health Packaging | ANDA | View NDC → |
| 5 mg | Oral | Aphena Pharma Solutions - Tennessee, LLC × 2 listings | ANDA | View NDC → |
| 1 mg | Oral | Ascend Laboratories, LLC | ANDA | View NDC → |
| 5 mg | Oral | Ascend Laboratories, LLC | ANDA | View NDC → |
| 1 mg | Oral | Asclemed USA, Inc. × 2 listings | ANDA | View NDC → |
| 5 mg | Oral | Asclemed USA, Inc. | ANDA | View NDC → |
| 5 mg | Oral | Atlantic Biologicals Corps | ANDA | View NDC → |
| 1 mg | Oral | Aurobindo Pharma Limited | ANDA | View NDC → |
| 5 mg | Oral | Aurobindo Pharma Limited | ANDA | View NDC → |
| 5 mg | Oral | AvPAK | ANDA | View NDC → |
| 1 mg | Oral | Bryant Ranch Prepack | ANDA | View NDC → |
| 5 mg | Oral | Bryant Ranch Prepack × 5 listings | ANDA | View NDC → |
| 1 mg | Oral | Burel Pharmaceuticals, LLC | ANDA | View NDC → |
| 1 mg | Oral | Camber Pharmaceuticals, Inc. | ANDA | View NDC → |
| 5 mg | Oral | Camber Pharmaceuticals, Inc. | ANDA | View NDC → |
| 5 mg | Oral | Cardinal Health 107, LLC × 2 listings | ANDA | View NDC → |
| 5 mg | Oral | Coupler LLC | ANDA | View NDC → |
| 5 mg | Oral | Direct_Rx | ANDA | View NDC → |
| 1 mg | Oral | Dr. Reddy's Laboratories Limited | ANDA | View NDC → |
| 5 mg | Oral | Dr. Reddy's Laboratories Limited | ANDA | View NDC → |
| 5 mg | Oral | Exelan Pharmaceuticals Inc. | ANDA | View NDC → |
| 5 mg | Oral | Legacy Pharmaceutical Packaging, LLC | ANDA | View NDC → |
| 5 mg | Oral | Major Pharmaceuticals | ANDA | View NDC → |
| 5 mg | Oral | NCS HealthCare of KY, LLC dba Vangard Labs | ANDA | View NDC → |
| 1 mg | Oral | NuCare Pharmaceuticals, Inc. × 2 listings | ANDA | View NDC → |
| 1 mg | Oral | NuCare Pharmaceuticals,Inc. × 2 listings | ANDA | View NDC → |
| 5 mg | Oral | NuCare Pharmaceuticals, Inc. | ANDA | View NDC → |
| 5 mg | Oral | NuCare Pharmaceuticals,Inc. × 5 listings | ANDA | View NDC → |
| 1 mg | Oral | Organon LLC | NDA | View NDC → |
| 5 mg | Oral | Organon LLC | NDA | View NDC → |
| 5 mg | Oral | Preferred Pharmaceuticals, Inc. | ANDA | View NDC → |
| 1 mg | Oral | Preferred Pharmaceuticals Inc. × 2 listings | ANDA | View NDC → |
| 5 mg | Oral | Preferred Pharmaceuticals Inc. × 2 listings | ANDA | View NDC → |
| 1 mg | Oral | Proficient Rx LP × 2 listings | ANDA | View NDC → |
| 5 mg | Oral | Proficient Rx LP × 2 listings | ANDA | View NDC → |
| 5 mg | Oral | Quallent Pharmaceuticals Health Llc | ANDA | View NDC → |
| 1 mg | Oral | Remedyrepack Inc. × 2 listings | ANDA | View NDC → |
| 5 mg | Oral | Remedyrepack Inc. × 4 listings | ANDA | View NDC → |
| 1 mg | Oral | Rising Pharma Holdings, Inc. | ANDA | View NDC → |
| 5 mg | Oral | Rising Pharma Holdings, Inc. | ANDA | View NDC → |
| 1 mg | Oral | Sun Pharmaceutical Industries, Inc. | ANDA | View NDC → |
| 5 mg | Oral | Teva Pharmaceuticals USA, Inc. | ANDA | View NDC → |
| 1 mg | Oral | Thirty Madison Inc | ANDA | View NDC → |
Showing 73 of 73 products — FDA National Drug Code Directory. See every product, package size and price: browse all 73 Finasteride NDCs →
Finasteride side effects reported to the FDA (FAERS)
After a medicine reaches the market, patients, doctors and drugmakers can send the FDA reports of problems they think may be linked to it. Here’s what’s been reported for Finasteride — a signal of what to watch for, not proof the drug caused it.
The effects most often named in FDA reports that mention Finasteride are erectile dysfunction, fatigue, depression; about 64% of the reports were classed as serious. These are voluntary reports, so they show what people report, not how often it happens.
Source: openFDA, from the FDA Adverse Event Reporting System (FAERS). These are voluntary reports — they don’t prove the drug caused the effect, and counts reflect how often something was reported, not how often it actually happens. Reports also often name the very problem the medicine is taken for — a common reason to file one is that the drug didn’t help — so for a pain reliever you may see “pain” high on the list; that points to why the report was filed, not to the drug causing the symptom. This counts every report that lists Finasteride in any role, so the total runs higher than the FDA’s official dashboard, which counts only cases where the drug is the suspect. For the authoritative figures, see the FDA FAERS Public Dashboard. Always talk to your pharmacist or doctor.
Finasteride FDA approval history
How Finasteride went from FDA review to the pharmacy shelf — the key milestones in its regulatory journey.
Finasteride was first approved by the FDA in 1992 (Brand: PROSCAR · Organon); the first generic version was approved in 2006. It remains available in U.S. pharmacies today.
Source: Drugs@FDA.
Finasteride recall history
A recall is when a specific batch of a medicine is pulled from the market — usually a manufacturing issue, not a problem with the drug itself. Class I is most serious, Class III least.
The FDA’s enforcement reports list one Finasteride recall since July 2021, covering 2 product listings. It is no longer listed as ongoing. A recall names specific lots from one company, so check the lot number on your own bottle rather than assuming every product is affected; your pharmacist can check whether your supply came from an affected lot.
- Finasteride Tablets USP, 5 mg, Rx Only, Packaged as: a) 30-count bottles NDC 16729-090-10 UPC 3 16729 09010 0; b) 90-count bottles NDC 16729-090-15 UPC 3 16729 09015 5; c) 100-count bottles NDC 16729… Lots: Batches: a) P2001383, Exp. Date 2/28/2023; P2004886, Exp. Date 8/31/2023; P2100853, Exp. Date 11/30/2023; P2101652, Exp. Date 2/29/2024; P2101821, Exp. Date 2/29/2024; P2102146, Exp. Date 3/31/2024; P2107270, Exp. Date 10/31/2024; P2107939… FDA record D-0392-2023 →
- Finasteride Tablets USP, 1 mg, Rx Only, Packaged as: a) 30-count bottle NDC 16729-089-10 UPC 3 16729 08910 4; b) 90-count bottle NDC 16729-089-15 UPC 3 16729 08915 9; Manufactured for: Accord Healthc… Lots: Batches: a) P2005979, Exp. Date 10/31/2023; P2100252, Exp. Date 12/31/2023; P2101710, Exp. Date 2/29/2024; b) P2100253, Exp. Date 12/31/2023; P2103035, Exp. Date 4/30/2024; P2103036, Exp. Date 4/30/2024; FDA record D-0390-2023 →
Source: FDA enforcement (recall) reports, via openFDA; our copy was last updated Sep 24, 2026.
RxNorm Concept Web — From Ingredient to Every Form and Strength
This page starts with one ingredient concept (IN). The branches below show its dose-form concepts (SCDF), then the available clinical drug and strength concepts (SCD). Combination products remain separate concepts with their own pages.
RxCUI 25025 1 dose form · 2 strengths
-
Dose form (SCDF) Oral Tablet RxCUI 372199In current FDA listings
Look up RxCUI 25025 in the RxCUI Atlas →
RxNorm is the U.S. National Library of Medicine’s normalized drug vocabulary. Its concept hierarchy can include forms that are not currently marketed; the status on each branch compares that concept with current FDA listings. RxCUIs identify vocabulary concepts, not individual packages or manufacturers.
Finasteride supply and shortage status
Whether Finasteride is in short supply in the U.S. right now, plus any shortage history the FDA has on record. A shortage usually reflects a manufacturing or demand issue — not a safety problem with the drug.
Source: openFDA, from the FDA Drug Shortages database.
💵 What Finasteride costs pharmacies (NADAC benchmark)
The national average invoice price pharmacies pay for the drug itself, from CMS's NADAC survey (data as of Sep 30, 2026). This is a supply-cost benchmark — not a retail price and not what you'd pay at the counter.
| Form | Strength | Pharmacy acquisition benchmark | |
|---|---|---|---|
| Tablet, Film Coated · Oral | 5 mg | $0.069 per tablet | NDC details & price history |
| Tablet, Film Coated · Oral | 1 mg | $0.045 per tablet | NDC details & price history |
| Tablet, Film Coated | 5 mg | $0.069 per tablet | NDC details & price history |
Source: CMS National Average Drug Acquisition Cost (NADAC), a survey of retail pharmacy invoice prices. Benchmarks shown are the range across package sizes of a representative product for each form and strength — other manufacturers' products may differ.
Finasteride brand names
Finasteride is sold under 2 brand names in the FDA directory — Propecia, Proscar. A brand and its generic contain the same active ingredient; the brand name belongs to one company's product.
Who makes Finasteride: manufacturers and labelers
30 companies list Finasteride products with the FDA. By number of product records, the largest are NuCare Pharmaceuticals,Inc., A-S Medication Solutions, Bryant Ranch Prepack. Labelers include manufacturers and repackagers; the product in your bottle depends on which one your pharmacy stocks.
…and 6 more on the FDA NDC directory.
Finasteride drug class (RxNorm)
Finasteride belongs to the 5-alpha Reductase Inhibitor class.
Classified by RxNorm RxClass — the U.S. National Library of Medicine's standardized drug-classification service (Established Pharmacologic Class from the FDA, the ATC drug family from the WHO, and mechanism of action). Reference only, not medical advice.
Sources for this Finasteride page
Core label, product, RxNorm, safety, and utilization data on this page come from the sources identified below. AI-written, editorial, and licensed sections are labeled separately.
How this page is built
HelloPharmacist combines public FDA and NLM records and does not author the underlying clinical facts. The plain-language sections are written with AI from the FDA-approved label text and reviewed by our pharmacy team before publication. Organon LLC is the representative DailyMed label linked for verification and dates. This is general education, not medical advice: always talk to your doctor or pharmacist about your own medicines. How we build and review drug pages →