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Testopel testosterone 75 mg Pellet, 10 ampules — NDC 66887-0004-10 package photo
Label image from the product's FDA listing (DailyMed) — may show a different pack size or an older label revision.

Testopel testosterone 75 mg Pellet, 10 ampules — NDC 66887-004-10 (Billing 66887-0004-10)

by Endo USA, Inc. · 10 AMPULE in 1 BOX / 1 PELLET in 1 AMPULE

This is a package of 10 ampules of Testopel testosterone 75 mg Pellet from Endo USA, Inc., marketed since Oct 2014 and currently FDA-listed.

NDC 66887-0004-10
🏷️ FDA NDC (as labeled) 66887-004-10 billing pads the product segment with a zero
This package
Contains10 ampules Medicaid pays$67.09 / unit · 12 mo Per package$670.93 / 10 pellet · Medicaid Pack sizes2 compare ↓
Rx only Generic On market CIII ⇄ Compare with another NDC
🗂️ FDA directory synced Oct 8, 2026 · this listing last changed Jul 24, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

NDC database record

One package, one record: these facts belong to NDC 66887-004-10 alone.

Record
FDA NDC Directory package listing · Human prescription drug
Code segments
66887 labeler · 004 product · 10 package
Package marketed since
Oct 31, 2014
Sample package
No — commercial package
Listing certified through
Dec 31, 2026
Billing quantity
10 EA per package
Barcode (UPC-A, from the NDC)
3 6688700410 5
Medicaid fills, this package
266 prescriptions in the last four reported quarters
FDA record last changed
Jul 24, 2026
⚠️
Other active recalls for Testosterone (different manufacturers) — 4 · tap to view
These affect other manufacturers’ products for the same ingredient — not necessarily the exact NDC on this page.
Class III · Nov 7, 2025 — Defective Container - A defect in the side-seal which allows leakage of product. (Teva Pharmaceuticals USA, Inc) · FDA recall D-0198-2026
Class II · Mar 5, 2025 — Presence of foreign substance: Presence of Benzene. (Strides Pharma, Inc.) · FDA recall D-0294-2025
Class II · Mar 5, 2025 — Presence of foreign substance: Presence of Benzene. (Strides Pharma, Inc.) · FDA recall D-0293-2025
Class II · Aug 8, 2024 — Superpotent Drug (Teva Pharmaceuticals USA, Inc) · FDA recall D-0637-2024
Each entry is an official FDA enforcement report — look up any recall number in the FDA recall database ↗

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 66887-004-10
Product NDC 66887-004
11-digit billing NDC 66887000410
NCPDP billing unit EA — each (per item)
RxCUI 318240, 404405
UNII 3XMK78S47O
Application # ANDA080911
SPL Set ID 03b9c0b1-5884-11e4-8ed6-0800200c9a66
Established class (EPC) Androgen
Mechanism of action Androgen Receptor Agonists
Chemical class Androstanes
DEA schedule CIII
Marketing category ANDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2014-10-31
Route SUBCUTANEOUS
Dosage form PELLET
Substance TESTOSTERONE

Drug-database identifiers Medi-Span GPI and First Databank GCN / HICL / AHFS classification

GPI-14 23100030008920
GPI class Testopel
GCN Seq No 019153
GCN 02660
HICL code 001403
Ingredient (HICL) Testosterone
HIC1 code F
Therapeutic class — broad (HIC1) Male Genital System
HIC2 code F1
Therapeutic class — intermediate (HIC2) Androgens
HIC3 code F1A
Therapeutic class — specific (HIC3) Androgenic Agents
AHFS code 68:08.00.00
AHFS class Androgens
FDB label name TESTOPEL 75 MG PELLETS
FDB brand name Testopel
Legend status F — Federal legend — prescription drug or device
Quick answers
  • GSN (GCN sequence number): 019153
  • GCN: 02660
  • GPI-14 (Medi-Span): 23100030008920
  • HICL (First Databank): 001403
  • AHFS class code: 68:08.00.00
  • RxCUI (RxNorm): 318240
Why two NDCs? The FDA registers this code as 66887-004-10 — 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 → 66887-0004-10. 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 Androgen class.

Pharmacologic class Androgen
Drug family (ATC) 3-oxoandrosten (4) derivatives, Androgens and estrogens
How it works Androgen Receptor Agonists
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.

Clinical

Label name TESTOPEL 75 MG PELLETS Ingredient Testosterone
📗 Our plain-language guide HelloPharmacist
  • It's for adult men whose bodies make too little testosterone, called hypogonadism. Your doctor should confirm this with morning blood tests on at least two different days before st...
  • Testosterone gel can pass to others through skin contact. Children and women should avoid touching unwashed or unclothed application sites, and you should follow the instructions f...
  • How do I keep my family safe if I use a gel?
  • Common ones include a higher PSA, mood changes, acne, higher blood pressure and skin irritation. Your doctor will check blood tests such as PSA and blood counts and monitor your bl...
📖 Read our full Testosterone 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.

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 $67.09 $670.93 / 10 pellet
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
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.

Packaging — all sizes for this product

Package NDCDescription Marketing startMarketing endStatus
66887-0004-10 You're viewing this 10 AMPULE in 1 BOX / 1 PELLET in 1 AMPULE 2014-10-31 — Active
66887-0004-20 66887-004-20 Main listing 100 AMPULE in 1 BOX / 1 PELLET in 1 AMPULE 2014-10-31 — Active

In Medicaid, this is the most-dispensed pack of this product — about 51% of fills over the last four reported quarters. See all packs ↓

Pack size FAQ

What quantity is in this package?
This package contains 10 ampules — 10 ampule in 1 box / 1 pellet in 1 ampule.
How does this package differ from NDC 66887-0004-20?
Both are Testopel testosterone 75 mg Pellet — the drug itself is identical. This page's package is the 10 ampules one, while NDC 66887-0004-20 is the 100 ampules package.
What NDC number is used to bill for this package of Testopel testosterone 75 mg Pellet?
Use the 11-digit billing form listed in the identifiers section of this page. Pharmacy and medical claims use the 11-digit form; the FDA label may print a shorter form of the same code.

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Testopel 75 mgthis 66887-0004-10 Endo 10 ampules — — 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

🏛️
2014
On the market since
Oct 2014
📍
2026
Currently FDA-listed
12 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.

What it looks like

Color white
ShapeBullet
Size9 mm
ScoringNot scored
One label can cover several strengths, so colors may be combined — always confirm a loose pill against the dispensed prescription label or a pharmacist.
Where does this data come from?
Physical description (imprint, shape, color, scoring, coating) from this product’s FDA Structured Product Labeling (SPL), mirrored from DailyMed / openFDA.

Inactive Ingredients / Excipients

Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.

🧪 Avoiding an ingredient? See Testosterone inactive ingredients by manufacturer: every current product's list side by side, so you can ask your pharmacy for the version that does not list it.

A current SPL was checked, but it does not contain a structured or narrative inactive-ingredient list for this product. This does not mean the product has no inactive ingredients.
Where does this data come from?
Source: official FDA Structured Product Labeling (SPL) via DailyMed and the openFDA label index. Structured IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.

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.

Manufacturer & labeler

LabelerEndo USA, Inc.
Application holderENDO OPERATIONS LTD
FDA applicationANDA080911 (ANDA)
Labeler code66887
First marketedOct 2014
DEA scheduleCIII
Product typeHuman Prescription Drug
Portfolio101 products on file
The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. Very long sections are excerpted here and marked; the full text is on DailyMed (linked in the sources below). Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage ~1 min read ▾

INDICATIONS AND USAGE MALES Androgens are indicated for replacement therapy in conditions associated with a deficiency or absence of endogenous testosterone. a. Primary hypogonadism (congenital or acquired) - testicular failure due to cryptorchidism, bilateral torsion, orchitis, vanishing testes syndrome; or orchiectomy. b. Hypogonadotropic hypogonadism (congenital or acquired) - gonadotropic LHRH deficiency, or pituitary - hypothalamic injury from tumors, trauma or radiation.

If the above conditions occur prior to puberty, androgen replacement therapy will be needed during the adolescent years for development of secondary sex characteristics. Prolonged androgen treatment will be required to maintain sexual characteristics in these and other males who develop testosterone deficiency after puberty. Safety and efficacy of TESTOPEL ® (testosterone pellets) in men with “age-related hypogonadism” (also referred to as “late-onset hypogonadism”) have not been established. c.

Androgens may be used to stimulate puberty in carefully selected males with clearly delayed puberty. These patients usually have a familial pattern of delayed puberty that is not secondary to a pathological disorder; puberty is expected to occur spontaneously at a relatively late date. Brief treatment with conservative doses may occasionally be justified in these patients if they do not respond to psychological support.

The potential adverse effect on bone maturation should be discussed with the patient and parents prior to androgen administration. An x-ray of the hand and wrist to determine bone age should be taken every 6 months to assess the effect of treatment on epiphyseal centers (see WARNINGS ).

⏱️ Dosage and Administration ~2 min read ▾

DOSAGE AND ADMINISTRATION Prior to initiating, TESTOPEL ® (testosterone pellets) confirm the diagnosis of hypogonadism by ensuring that serum testosterone concentrations have been measured in the morning on at least two separate days and that these serum testosterone concentrations are below the normal range. The suggested dosage for androgens varies depending on the age, and diagnosis of the individual patient. Dosage is adjusted according to the patient’s response and the appearance of adverse reactions.

The dosage guideline for the testosterone pellets for replacement therapy in androgen-deficient males is 150mg to 450mg subcutaneously every 3 to 6 months. Various dosage regimens have been used to induce pubertal changes in hypogonadal males; some experts have advocated lower doses initially, gradually increasing the dose as puberty progresses, with or without a decrease in maintenance levels. Other experts emphasize that higher dosages are needed to induce pubertal changes and lower dosages can be used for maintenance after puberty.

The chronological and skeletal ages must be taken into consideration, both in determining the initial dose and in adjusting the dose. Dosages in delayed puberty generally are in the lower range of that listed above and, for a limited duration, for example 4 to 6 months. The number of pellets to be implanted depends upon the minimal daily requirements of testosterone propionate determined by a gradual reduction of the amount administered parenterally.

The usual dosage is as follows: implant two 75mg pellets for each 25mg testosterone propionate required weekly. Thus when a patient requires injections of 75mg per week, it is usually necessary to implant 450mg (6 pellets). With injections of 50mg per week, implantation of 300mg (4 pellets) may suffice for approximately three months.

With lower requirements by injection, correspondingly lower amounts may be implanted. It has been found that approximately one-third of the material is absorbed in the first month, one-fourth in the second month and one-sixth in the third month. Adequate effect of the pellets ordinarily continues for three to four months, sometimes as long as six months.

⛔ Contraindications 110 words ▾

CONTRAINDICATIONS Androgens are contraindicated in men with carcinomas of the breast or with known or suspected carcinomas of the prostate. If administered to pregnant women, androgens cause virilization of the external genitalia of the female fetus. The virilization includes clitoromegaly, abnormal vaginal development, and fusion of genital folds to form a scrotal-like structure.

The degree of masculinization is related to the amount of drug given and the age of the fetus, and is most likely to occur in the female fetus when the drugs are given in the first trimester. If the patient becomes pregnant while taking these drugs she should be apprised of the potential hazard to the fetus.

⚠️ Warnings ~3 min read ▾

WARNINGS In patients with breast cancer, androgen therapy may cause hypercalcemia by stimulating osteolysis. In this case, the drug should be discontinued. Prolonged use of high doses of androgens has been associated with the development of peliosis hepatis and hepatic neoplasms including hepatocellular carcinoma (see PRECAUTIONS - Carcinogenesis, Mutagenesis, Impairment of Fertility).

Peliosis hepatis can be a life-threatening or fatal complication. Men treated with androgens may be at an increased risk for the development of prostatic hypertrophy and prostatic carcinoma. There have been postmarketing reports of venous thromboembolic events, including deep vein thrombosis (DVT) and pulmonary embolism (PE), in patients using testosterone products, such as TESTOPEL ® (testosterone pellets).

Evaluate patients who report symptoms of pain, edema, warmth and erythema in the lower extremity for DVT and those who present with acute shortness of breath for PE. If a venous thromboembolic event is suspected, discontinue treatment with TESTOPEL ® (testosterone pellets) and initiate appropriate workup and management (see ADVERSE REACTIONS ). Long term clinical safety trials have not been conducted to assess the cardiovascular outcomes of testosterone replacement therapy in men.

To date, epidemiologic studies and randomized controlled trials have been inconclusive for determining the risk of major adverse cardiovascular events (MACE), such as non-fatal myocardial infarction, non-fatal stroke, and cardiovascular death, with the use of testosterone compared to non-use. Some studies, but not all, have reported an increased risk of MACE in association with use of testosterone replacement therapy in men. Patients should be informed of this possible risk when deciding whether to use or to continue to use TESTOPEL ® (testosterone pellets).

Testosterone can increase blood pressure which can increase cardiovascular (CV) risk over time. Monitor blood pressure periodically in men using testosterone products, especially in men with hypertension. Testosterone products are not recommended for use in patients with uncontrolled hypertension.

Testosterone has been subject to abuse, typically at doses higher than recommended for the approved indication and in combination with other anabolic androgenic steroids. Anabolic androgenic steroid abuse can lead to serious cardiovascular and psychiatric adverse reactions (see DRUG ABUSE AND DEPENDENCE ) . If testosterone abuse is suspected, check serum testosterone concentrations to ensure they are within therapeutic range.

However, testosterone levels may be in the normal or subnormal range in men abusing synthetic testosterone derivatives. Counsel patients concerning the serious adverse reactions associated with abuse of testosterone and anabolic androgenic steroids. Conversely, consider the possibility of testosterone and anabolic androgenic steroid abuse in suspected patients who present with serious cardiovascular or psychiatric adverse events.

Edema with or without congestive heart failure may be a serious complication in patients with preexisting cardiac, renal, or hepatic disease. In addition to discontinuation of the drug, diuretic therapy may be required. Gynecomastia frequently develops in patients and occasionally persists in patients being treated for hypogonadism.

Androgen therapy should be used cautiously in healthy males with delayed puberty. The effect on bone maturation should be monitored by assessing bone age of the wrist and hand every 6 months. In children, androgen treatment may accelerate bone maturation without producing compensatory gain in linear growth.

This adverse effect may result in compromised adult stature. The younger the child the greater the risk of compromising final mature height. Post-marketing cases associate TESTOPEL ® pellet(s) insertion with implant site infection (cellulitis and abscess), and/or pellet extrusion at or near the implantation site.

Infection and extrusion ma… [Excerpted — this section continues on DailyMed.]

🤒 Adverse Reactions 174 words ▾

ADVERSE REACTIONS The following adverse reactions have been identified during post-approval use of testosterone replacement therapy, including TESTOPEL ® . Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Implantation Site Infection and Pellet Extrusion: (see WARNINGS) Endocrine and Urogenital, Male.

Gynecomastia and excessive frequency and duration of penile erections. Oligospermia may occur at high dosages (see CLINICAL PHARMACOLOGY ). Skin and Appendages.

Hirsutism, male pattern of baldness, and acne. Cardiovascular Disorders. Myocardial infarction, stroke.

Fluid and Electrolyte Disturbances. Retention of sodium, chloride, water, potassium, calcium and inorganic phosphates. Gastrointestinal.

Nausea, cholestatic jaundice, alterations in liver function tests, rarely hepatocellular neoplasms and peliosis hepatis (see WARNINGS ). Hematologic. Suppression of clotting factors II, V, VII, and X, bleeding in patients on concomitant anticoagulant therapy, and polycythemia.

Nervous System. Increased or decreased libido, headache, anxiety, depression, and generalized paresthesia. Metabolic.

Increased serum cholesterol. Vascular Disorders: Venous thromboembolism (see WARNINGS ). Miscellaneous.

Rarely anaphylactoid reactions.

🆘 Overdosage 12 words ▾

OVERDOSAGE There have been no reports of acute overdosage with the androgens.

🧬 Clinical Pharmacology ~2 min read ▾

CLINICAL PHARMACOLOGY Endogenous androgens are responsible for the normal growth and development of the male sex organs and for maintenance of secondary sex characteristics. These effects include the growth and maturation of prostate, seminal vesicles, penis and scrotum; the development of male hair distribution such as beard, pubic, chest and axillary hair, laryngeal enlargements, vocal cord thickening, alterations in body musculature and fat distribution. Drugs in this class can also cause retention of nitrogen, sodium, potassium, phosphorus, and decreased urinary excretion of calcium.

Androgens have been reported to increase protein anabolism and decrease protein catabolism. Nitrogen balance is improved only when there is sufficient intake of calories and protein. Androgens are responsible for the growth spurt of adolescence and for the eventual termination of linear growth which is brought about by the fusion of the epiphyseal growth centers.

In children, exogenous androgens accelerate linear growth rates, but may cause a disproportionate advancement in bone maturation. Use over long periods may result in fusion of the epiphyseal growth centers and termination of growth process. Androgens have been reported to stimulate the production of red blood cells by enhancing the production of erythropoietic stimulating factor.

During exogenous administration of androgens, endogenous testosterone release is inhibited through feedback inhibition of pituitary luteinizing hormone (LH). At large doses of exogenous androgens, spermatogenesis may also be suppressed through feedback inhibition of pituitary follicle stimulating hormone (FSH). There is a lack of substantial evidence that androgens are effective in fractures, surgery, convalescence, and functional uterine bleeding.

PHARMACOKINETICS Testosterone in plasma is 98 percent bound to a specific testosterone-estradiol binding globulin, and about 2 percent is free. Generally, the amount of this sex-hormone binding globulin in the plasma will determine the distribution of testosterone between the free and bound forms, and the free testosterone concentration will determine its half-life. About 90 percent of a dose of testosterone is excreted as glucuronic and sulfuric acid conjugates of testosterone and its metabolites; about 6 percent of a dose is excreted in feces, mostly in the unconjugated form.

Inactivation of testosterone occurs primarily in the liver. Testosterone is metabolized to various 17-keto steroids through two different pathways. There are considerable variations of the half-life as reported in the literature, ranging from 10-100 minutes.

In many tissues the activity of testosterone appears to depend on reduction to dihydrotestosterone, which binds to cytosol receptor proteins. The steroid-receptor complex is transported to the nucleus where it initiates transcription events and cellular changes related to androgen action.

📦 How Supplied / Storage and Handling 60 words ▾

HOW SUPPLIED Testosterone pellets each containing 75mg testosterone. One pellet per vial in boxes of 10 (NDC: 66887-004-10) and 100 (NDC: 66887-004-20). Store at 25°C (77°F), excursions permitted to 15° to 30°C (59° to 86°F). [See USP Controlled Room Temperature]. Rx Only Manufactured for: Endo USA Malvern, PA 19355 © 2025 Endo, Inc. or one of its affiliates. Revised 07/2025

📋 Description 119 words ▾

DESCRIPTION TESTOPEL ® (testosterone pellets) are cylindrically shaped pellets 3.2mm (1/8 inch) in diameter and approximately 9mm in length. Each sterile pellet weighs approximately 78mg (75mg testosterone) and is ready for implantation. Androgens are steroids that develop and maintain primary and secondary male sex characteristics.

Testosterone is a member of this class. Structural formula for testosterone follows: INGREDIENTS Each TESTOPEL ® (testosterone pellets) for subcutaneous implantation contains 75mg testosterone. In addition each pellet contains the following inactive ingredients: stearic acid NF 0.97mg and polyvinylpyrrolidone USP 2mg.

TESTOPEL ® (testosterone pellets) consist of crystalline testosterone. When implanted subcutaneously, the pellets slowly release the hormone for a long acting androgenic effect. this is an image of the chemical structure for testosterone.

⚠️ Precautions ~3 min read ▾

PRECAUTIONS GENERAL Pellet implantation is much less flexible for dosage adjustment than is oral administration of or intramuscular injections of oil solutions or aqueous suspensions. Therefore, great care should be used when estimating the amount of testosterone needed. In the face of complications where the effects of testosterone should be discontinued, the pellets would have to be removed.

INFORMATION FOR THE PATIENT The physician should instruct patients to report any of the following side effects of androgens: Adult or adolescent males: Too frequent or persistent erections of the penis. Any nausea, vomiting, changes in skin color, ankle swelling. Implantation site infection and/or pellet extrusion can occur and may be associated with implant site induration, inflammation, fibrosis, bleeding, bruising, wound drainage, pain, itching, and pellet extrusion.

(see WARNINGS and ADVERSE REACTIONS). Any male adolescent patient receiving androgens for delayed puberty should have bone development checked every 6 months. LABORATORY TESTS Because of the hepatotoxicity associated with the use of 17-alpha-alkylated androgens, liver function tests should be obtained periodically.

Periodic (every 6 months) x-ray examinations of the bone age should be made during treatment of prepubertal males to determine the rate of bone maturation and the effects of androgen therapy on the epiphyseal centers. Hemoglobin and hematocrit should be checked periodically for polycythemia in patients who are receiving high doses of androgens. DRUG INTERACTIONS Anticoagulants.

C-17 substituted derivatives of testosterone, such as methandrostenolone have been reported to decrease the anticoagulant requirements of patients receiving oral anticoagulants. Patients receiving oral anticoagulant therapy require close monitoring, especially when androgens are started or stopped. Oxyphenbutazone.

Concurrent administration of oxyphenbutazone and androgens may result in elevated serum levels of oxyphenbutazone. Insulin. In diabetic patients the metabolic effects of androgens may decrease blood glucose and insulin requirements.

DRUG/LABORATORY TEST INTERFERENCES Androgens may decrease levels of thyroxine-binding globulin, resulting in decreased total T4 serum levels and increased resin uptake of T3 and T4. Free thyroid hormone levels remain unchanged, however, and there is no clinical evidence of thyroid dysfunction. CARCINOGENESIS, MUTAGENESIS, IMPAIRMENT OF FERTILITY Animal Data.

Testosterone has been tested by subcutaneous injection and implantation in mice and rats. The implant induced cervical-uterine tumors in mice, which metastasized in some cases. There is suggestive evidence that injection of testosterone into some strains of female mice increases their susceptibility to hepatoma.

Testosterone is also known to increase the number of tumors and decrease the degree of differentiation of chemically induced carcinomas of liver in rats. Human Data. There are rare reports of hepatocellular carcinoma in patients receiving long-term therapy with androgens in high doses.

Withdrawal of the drugs did not lead to regression of the tumors in all cases. Geriatric patients treated with androgens may be at an increased risk for the development of prostatic hypertrophy and prostatic carcinoma. PREGNANCY Teratogenic Effects.

Pregnancy Category X (see CONTRAINDICATIONS). NURSING MOTHERS It is not known whether androgens are excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from androgens, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.

PEDIATRIC USE Androgen therapy should be used very cautiously in children and only by specialists who are aware of the adverse effects on bone maturation. Skeletal maturation must be monitored every 6 months by an x-ray of the hand and wrist (see INDICATION… [Excerpted — this section continues on DailyMed.]

🔒 Drug Abuse and Dependence ~2 min read ▾

DRUG ABUSE AND DEPENDENCE Controlled Substance TESTOPEL ® contains testosterone, a Schedule III controlled substance in the Controlled Substances Act. Abuse Drug abuse is intentional non-therapeutic use of a drug, even once, for its rewarding psychological and physiological effects. Abuse and misuse of testosterone are seen in male and female adults and adolescents.

Testosterone, often in combination with other anabolic androgenic steroids (AAS), and not obtained by prescription through a pharmacy, may be abused by athletes and bodybuilders. There have been reports of misuse of men taking higher doses of legally obtained testosterone than prescribed and continuing testosterone despite adverse events or against medical advice. Abuse-Related Adverse Reactions Serious adverse reactions have been reported in individuals who abuse anabolic androgenic steroids, and include cardiac arrest, myocardial infarction, hypertrophic cardiomyopathy, congestive heart failure, cerebrovascular accident, hepatotoxicity, and serious psychiatric manifestations, including major depression, mania, paranoia, psychosis, delusions, hallucinations, hostility and aggression.

The following adverse reactions have also been reported in men: transient ischemic attacks, convulsions, hypomania, irritability, dyslipidemias, testicular atrophy, subfertility, and infertility. The following additional adverse reactions have been reported in women: hirsutism, virilization, deepening of voice, clitoral enlargement, breast atrophy, male-pattern baldness, and menstrual irregularities. The following adverse reactions have been reported in male and female adolescents: premature closure of bony epiphyses with termination of growth, and precocious puberty.

Because these reactions are reported voluntarily from a population of uncertain size and may include abuse of other agents, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Dependence Behaviors Associated with Addiction Continued abuse of testosterone and other anabolic steroids, leading to addiction is characterized by the following behaviors: Taking greater dosages than prescribed Continued drug use despite medical and social problems due to drug use Spending significant time to obtain the drug when supplies of the drug are interrupted Giving a higher priority to drug use than other obligations Having difficulty in discontinuing the drug despite desires and attempts to do so Experiencing withdrawal symptoms upon abrupt discontinuation of use Physical dependence is characterized by withdrawal symptoms after abrupt drug discontinuation or a significant dose reduction of a drug.

Individuals taking supratherapeutic doses of testosterone may experience withdrawal symptoms lasting for weeks or months which include depressed mood, major depression, fatigue, craving, restlessness, irritability, anorexia, insomnia, decreased libido and hypogonadotropic hypogonadism. Drug dependence in individuals using approved doses of testosterone for approved indications has not been documented.

📄 Package Label / Principal Display Panel 28 words ▾

Principal Display Panel – Vial Label Vial label

Principal Display Panel – Box of 10 Vials 10ct carton

Principal Display Panel – Box of 100 Vials 100ct carton

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

Medicaid utilization & spend

📍 This exact package only: Medicaid data is reported per full 11-digit NDC — labeler, product and pack size — so every number here is for this package alone, not the drug overall. Other pack sizes report separately.
💊 Pharmacy benefit only: These are Medicaid outpatient pharmacy claims, billed by NDC. They exclude the medical benefit — clinic- or hospital-administered drugs billed under HCPCS J-codes — so drugs used mostly that way (e.g. Avastin, Lucentis, Keytruda) can look low or missing here. That’s expected, not an error.
📅 Q1 2025 – Q1 2026 · 5 quarters of data
ⓘ The newest quarter is usually incomplete when first published; states restate recent quarters in later CMS releases, so the latest figures typically revise upward. State coverage-policy changes can also shift quarter-to-quarter totals.
Prescriptions last 4 qtrs
266
Units reimbursed last 4 qtrs
3.2K
Gross reimbursed last 4 qtrs
$212.8K
Avg / prescription
$799.82
Avg / unit
$67.0928
Latest quarter Q1 2026
36Rx
Fee-for-service vs managed care ⓘ
96% MCO
Fee-for-service · 11 Rx Managed care · 255 Rx
State Medicaid map
Alaska: 1,112 units · 152 per 100k residents AK Maine: no data reported ME Washington: no data reported WA Idaho: no data reported ID Montana: no data reported MT North Dakota: no data reported ND Minnesota: 273 units · 4.8 per 100k residents MN Wisconsin: no data reported WI Michigan: no data reported MI New York: 484 units · 2.5 per 100k residents NY Vermont: no data reported VT New Hampshire: no data reported NH Oregon: no data reported OR Nevada: no data reported NV Wyoming: no data reported WY South Dakota: no data reported SD Iowa: no data reported IA Illinois: no data reported IL Indiana: no data reported IN Ohio: no data reported OH Pennsylvania: no data reported PA New Jersey: no data reported NJ Massachusetts: 769 units · 11.0 per 100k residents MA California: no data reported CA Utah: no data reported UT Colorado: no data reported CO Nebraska: no data reported NE Missouri: no data reported MO Kentucky: no data reported KY West Virginia: no data reported WV Virginia: no data reported VA Maryland: no data reported MD Connecticut: no data reported CT Rhode Island: 533 units · 48.7 per 100k residents RI Arizona: no data reported AZ New Mexico: no data reported NM Kansas: no data reported KS Arkansas: no data reported AR Tennessee: no data reported TN North Carolina: no data reported NC South Carolina: no data reported SC Delaware: no data reported DE Oklahoma: no data reported OK Louisiana: no data reported LA Mississippi: no data reported MS Alabama: no data reported AL Georgia: no data reported GA D.C.: no data reported DC Hawaii: no data reported HI Texas: no data reported TX Florida: no data reported FL
Units reimbursed · per 100k residents
2.5152
gray = no data reported ⓘ
Colors are per 100,000 residents, so big states don’t automatically dominate. Tap or hover a state for its actual totals.
Tap or hover a state
…for its Medicaid breakdown
🏆 Top states by units · per 100k residents
1 Alaska 152 /100k
2 Rhode Island 48.7 /100k
3 Massachusetts 11.0 /100k
4 Minnesota 4.8 /100k
5 New York 2.5 /100k
National units — by quarter
💵 About the dollar figures: “reimbursed” is what Medicaid paid pharmacies before confidential manufacturer rebates, so the program’s real net cost is lower than these numbers. Fee-for-service and managed-care claims are combined unless split above. Source: CMS State Drug Utilization Data; per-100k rates use 2023 Census population estimates.

Medicaid utilization by pack size

Medicaid (SDUD) totals over the four most recent reported quarters for every package size of this drug — handy when a specific package (e.g. a starter/titration pack) carries little or no Medicaid volume on its own.
100 ampules66887-0004-20 252 Rx · $167,138
Drug total (last 4 qtrs): 518 Rx · 5,063 units · $379,890 gross reimbursed
Tap a pack size to open its page. Source: CMS State Drug Utilization Data, last 4 quarters.

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

Medicare Part D (outpatient prescription) spending for Testopel — the program that covers self-administered drugs. 1 manufacturer.
⚠️ 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 Testopel. 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
$258K
Claims incl. refills
241
Beneficiaries
236
Spend / beneficiary
$1,093.14
Spend / claim
$1,070.46
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 Testopel (this brand).

Top reported reactions

Fatigue1,182
Pain949
Nausea845
Headache766
Anxiety752
Diarrhoea619
Asthenia614

Age at onset

Infant3
Child7
Adolescent47
Adult1,765
Elderly711

Reporter sex

20,128 reports
Male · 82%
Female · 18%
Unknown · 0%

Serious outcomes

Hospitalization4,985
Death966
Disabling741
Life-threatening714
Reports over time (by year) — tap or hover for the count & year
2019 2021 2023 2026 1,745 945
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.

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) — Not published for this NDC The labeler did not submit a structured excipient list, or no SPL is 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) ✓ Available
“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 form printed on the packaging and shown on DailyMed is the one the FDA registered. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero and the dashes are dropped. The Identity section at the top of this page lists each form of this code.
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 Endo USA, Inc.. Listing status can change — the directory data on this page refreshes weekly.
Does this product come in other package sizes?
Yes — the FDA directory lists 1 other package presentation of this same product, including 100 ampules (66887-0004-20). Each has its own NDC and its own page — see the package list near the top of this page.
Who lists this product with the FDA?
Endo USA, Inc. is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as a prescription product, so it is dispensed under a prescriber's order. Your pharmacist can tell you whether any over-the-counter forms of the same medication exist.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.
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.