Eulexin

Flutamide


Waylis Therapeutics Llc
Human Prescription Drug
NDC 80725-600
Eulexin also known as Flutamide is a human prescription drug labeled by 'Waylis Therapeutics Llc'. National Drug Code (NDC) number for Eulexin is 80725-600. This drug is available in dosage form of Capsule. The names of the active, medicinal ingredients in Eulexin drug includes Flutamide - 125 mg/1 . The currest status of Eulexin drug is Active.

Drug Information:

Drug NDC: 80725-600
The labeler code and product code segments of the National Drug Code number, separated by a hyphen. Asterisks are no longer used or included within the product code segment to indicate certain configurations of the NDC.
Proprietary Name: Eulexin
Also known as the trade name. It is the name of the product chosen by the labeler.
Product Type: Human Prescription Drug
Indicates the type of product, such as Human Prescription Drug or Human OTC Drug. This data element corresponds to the “Document Type” of the SPL submission for the listing.
Non Proprietary Name: Flutamide
Also known as the generic name, this is usually the active ingredient(s) of the product.
Labeler Name: Waylis Therapeutics Llc
Name of Company corresponding to the labeler code segment of the ProductNDC.
Dosage Form: Capsule
The translation of the DosageForm Code submitted by the firm. There is no standard, but values may include terms like `tablet` or `solution for injection`.The complete list of codes and translations can be found www.fda.gov/edrls under Structured Product Labeling Resources.
Status: Active
FDA does not review and approve unfinished products. Therefore, all products in this file are considered unapproved.
Substance Name:FLUTAMIDE - 125 mg/1
This is the active ingredient list. Each ingredient name is the preferred term of the UNII code submitted.
Route Details:ORAL
The translation of the Route Code submitted by the firm, indicating route of administration. The complete list of codes and translations can be found at www.fda.gov/edrls under Structured Product Labeling Resources.

Marketing Information:

An openfda section: An annotation with additional product identifiers, such as NUII and UPC, of the drug product, if available.
Marketing Category: ANDA
Product types are broken down into several potential Marketing Categories, such as New Drug Application (NDA), Abbreviated New Drug Application (ANDA), BLA, OTC Monograph, or Unapproved Drug. One and only one Marketing Category may be chosen for a product, not all marketing categories are available to all product types. Currently, only final marketed product categories are included. The complete list of codes and translations can be found at www.fda.gov/edrls under Structured Product Labeling Resources.
Marketing Start Date: 12 Nov, 2021
This is the date that the labeler indicates was the start of its marketing of the drug product.
Marketing End Date: 19 Jan, 2026
This is the date the product will no longer be available on the market. If a product is no longer being manufactured, in most cases, the FDA recommends firms use the expiration date of the last lot produced as the EndMarketingDate, to reflect the potential for drug product to remain available after manufacturing has ceased. Products that are the subject of ongoing manufacturing will not ordinarily have any EndMarketingDate. Products with a value in the EndMarketingDate will be removed from the NDC Directory when the EndMarketingDate is reached.
Application Number: ANDA075298
This corresponds to the NDA, ANDA, or BLA number reported by the labeler for products which have the corresponding Marketing Category designated. If the designated Marketing Category is OTC Monograph Final or OTC Monograph Not Final, then the Application number will be the CFR citation corresponding to the appropriate Monograph (e.g. “part 341”). For unapproved drugs, this field will be null.
Listing Expiration Date: 31 Dec, 2023
This is the date when the listing record will expire if not updated or certified by the firm.

OpenFDA Information:

An openfda section: An annotation with additional product identifiers, such as NUII and UPC, of the drug product, if available.
Manufacturer Name:Waylis Therapeutics LLC
Name of manufacturer or company that makes this drug product, corresponding to the labeler code segment of the NDC.
RxCUI:197726
205646
The RxNorm Concept Unique Identifier. RxCUI is a unique number that describes a semantic concept about the drug product, including its ingredients, strength, and dose forms.
Original Packager:Yes
Whether or not the drug has been repackaged for distribution.
UPC:0380725600182
UPC stands for Universal Product Code.
NUI:N0000000243
N0000175560
Unique identifier applied to a drug concept within the National Drug File Reference Terminology (NDF-RT).
UNII:76W6J0943E
Unique Ingredient Identifier, which is a non-proprietary, free, unique, unambiguous, non-semantic, alphanumeric identifier based on a substance’s molecular structure and/or descriptive information.
Pharmacologic Class MOA:Androgen Receptor Antagonists [MoA]
Mechanism of action of the drug—molecular, subcellular, or cellular functional activity—of the drug’s established pharmacologic class. Takes the form of the mechanism of action, followed by `[MoA]` (such as `Calcium Channel Antagonists [MoA]` or `Tumor Necrosis Factor Receptor Blocking Activity [MoA]`.
Pharmacologic Class EPC:Androgen Receptor Inhibitor [EPC]
Established pharmacologic class associated with an approved indication of an active moiety (generic drug) that the FDA has determined to be scientifically valid and clinically meaningful. Takes the form of the pharmacologic class, followed by `[EPC]` (such as `Thiazide Diuretic [EPC]` or `Tumor Necrosis Factor Blocker [EPC]`.
Pharmacologic Class:Androgen Receptor Antagonists [MoA]
Androgen Receptor Inhibitor [EPC]
These are the reported pharmacological class categories corresponding to the SubstanceNames listed above.

Packaging Information:

Package NDCDescriptionMarketing Start DateMarketing End DateSample Available
80725-600-181 BOTTLE, PLASTIC in 1 BOX (80725-600-18) / 180 CAPSULE in 1 BOTTLE, PLASTIC12 Nov, 2021N/ANo
Package NDC number, known as the NDC, identifies the labeler, product, and trade package size. The first segment, the labeler code, is assigned by the FDA. Description tells the size and type of packaging in sentence form. Multilevel packages will have the descriptions concatenated together.

Product Elements:

Eulexin flutamide flutamide flutamide beige 93;7120

Drug Interactions:

Drug interactions increases in prothrombin time have been noted in patients receiving long-term warfarin therapy after eulexin™ was initiated. therefore close monitoring of prothrombin time is recommended and adjustment of the anticoagulant dose may be necessary when eulexin™ capsules are administered concomitantly with warfarin.

Boxed Warning:

Warnings hepatic injury there have been postmarketing reports of hospitalization and rarely death due to liver failure in patients taking eulexin™. evidence of hepatic injury included elevated serum transaminase levels, jaundice, hepatic encephalopathy and death related to acute hepatic failure. the hepatic injury was reversible after discontinuation of therapy in some patients. approximately half of the reported cases occurred within the initial 3 months of treatment with eulexin™. serum transaminase levels should be measured prior to starting treatment with eulexin™. eulexin™ is not recommended in patients whose alt values exceed twice the upper limit of normal. serum transaminase levels should then be measured monthly for the first 4 months of therapy, and periodically thereafter. liver function tests also should be obtained at the first signs and symptoms suggestive of liver dysfunction, e.g., nausea, vomiting, abdominal pain, fatigue, anorexia, "flu-like" symptoms, hyperbilirubinuria, jaundice or right upper quadrant tenderness. if at any time, a patient has jaundice, or their alt rises above 2 times the upper limit of normal, eulexin™ should be immediately discontinued with close follow-up of liver function tests until resolution.

Indications and Usage:

Indications and usage eulexin™ capsules are indicated for use in combination with lhrh-agonists for the management of locally confined stage b 2 -c and stage d 2 metastatic carcinoma of the prostate. stage b 2 -c prostatic carcinoma treatment with eulexin™ capsules and the goserelin acetate implant should start eight weeks prior to initiating radiation therapy and continue during radiation therapy. stage d 2 metastatic carcinoma to achieve benefit from treatment, eulexin™ capsules should be initiated with the lhrh-agonist and continued until progression.

Warnings:

Warnings hepatic injury see boxed warnings use in women eulexin™ capsules are for use only in men. this product has no indication for women and should not be used in this population, particularly for nonserious or nonlife-threatening conditions. fetal toxicity eulexin™ may cause fetal harm when administered to a pregnant woman (see pregnancy ). aniline toxicity one metabolite of eulexin™ is 4-nitro-3-fluoro-methylaniline. several toxicities consistent with aniline exposure, including methemoglobinemia, hemolytic anemia and cholestatic jaundice have been observed in both animals and humans after eulexin™ administration. in patients susceptible to aniline toxicity (e.g. persons with glucose-6-phosphate dehydrogenase deficiency, hemoglobin m disease and smokers), monitoring of methemoglobin levels should be considered.

General Precautions:

General in clinical trials, gynecomastia occurred in 9% of patients receiving eulexin™ together with medical castration.

Dosage and Administration:

Dosage and administration the recommended dosage is 2 capsules 3 times a day at 8 hour intervals for a total daily dose of 750 mg.

Contraindications:

Contraindications eulexin™ capsules are contraindicated in patients who are hypersensitive to eulexin™ or any component of this preparation. eulexin™ capsules are contraindicated in patients with severe hepatic impairment (baseline hepatic enzymes should be evaluated prior to treatment).

Adverse Reactions:

Adverse reactions stage b 2 -c prostatic carcinoma treatment with eulexin™ capsules and the goserelin acetate implant did not add substantially to the toxicity of radiation treatment alone. the following adverse experiences were reported during a multicenter clinical trial comparing eulexin™ + goserelin acetate implant + radiation versus radiation alone. the most frequently reported (greater than 5%) adverse experiences are listed below: adverse events during acute radiation therapy (within first 90 days of radiation therapy) (n=231) goserelin acetate implant + eulexin™ + radiation (n=235) radiation only % all % all rectum/large bowel 80 76 bladder 58 60 skin 37 37 adverse events during late radiation phase (after 90 days of radiation therapy) (n=231) goserelin acetate implant + eulexin™ + radiation (n=235) radiation only % all % all diarrhea 36 40 cystitis 16 16 rectal bleeding 14 20 proctitis 8 8 hematuria 7 12 additional adverse event data were collected for the
combination therapy with radiation group over both the hormonal treatment and hormonal treatment plus radiation phases of the study. adverse experiences occurring in more than 5% of patients in this group, over both parts of the study, were hot flashes (46%), diarrhea (40%), nausea (9%), and skin rash (8%). stage d 2 metastatic carcinoma the following adverse experiences were reported during a multicenter clinical trial comparing eulexin™ + lhrh agonist versus placebo + lhrh agonist. the most frequently reported (greater than 5%) adverse experiences during treatment with eulexin™ capsules in combination with an lhrh agonist are listed in the table below. for comparison, adverse experiences seen with an lhrh agonist and placebo are also listed in the following table. (n=294) eulexin™ + lhrh agonist (n=28) placebo + lhrh agonist % all % all hot flashes 61 57 loss of libido 36 31 impotence 33 29 diarrhea 12 4 nausea/vomiting 11 10 gynecomastia 9 11 other 7 9 other gi 6 4 as shown in the table, for both treatment groups, the most frequently occurring adverse experiences (hot flashes, impotence, loss of libido) were those known to be associated with low serum androgen levels and known to occur with lhrh agonists alone. the only notable difference was the higher incidence of diarrhea in the eulexin™ + lhrh agonist group (12%), which was severe in 5% as opposed to the placebo + lhrh agonist (4%), which was severe in less than 1%. in addition, the following adverse reactions were reported during treatment with eulexin™ + lhrh agonist. cardiovascular system: hypertension in 1% of patients. central nervous system : cns (drowsiness/confusion/depression/anxiety/nervousness) reactions occurred in 1% of patients. gastrointestinal system : anorexia 4%, and other gi disorders occurred in 6% of patients. hematopoietic system : anemia occurred in 6%, leukopenia in 3%, and thrombocytopenia in 1% of patients. liver and biliary system : hepatitis and jaundice in less than 1% of patients. skin : irritation at the injection site and rash occurred in 3% of patients. other: edema occurred in 4%, genitourinary and neuromuscular symptoms in 2%, and pulmonary symptoms in less than 1% of patients. in addition, the following spontaneous adverse experiences have been reported during the marketing of eulexin™: hemolytic anemia,macrocytic anemia,methemoglobinemia, sulfhemoglobinemia, photosensitivity reactions (including erythema, ulceration, bullous eruptions, and epidermal necrolysis) and urine discoloration. the urine was noted to change to an amber or yellow-green appearance which can be attributed to the eulexin™ and/or its metabolites. also reported were cholestatic jaundice, hepatic encephalopathy, and hepatic necrosis. the hepatic conditions were often reversible after discontinuing therapy; however, there have been reports of death following severe hepatic injury associated with use of eulexin™. malignant breast neoplasms have occurred rarely in male patients being treated with eulexin™ capsules. abnormal laboratory test values laboratory abnormalities including elevated sgot, sgpt, bilirubin values, sggt, bun, and serum creatinine have been reported.

Adverse Reactions Table:

Adverse Events During Acute Radiation Therapy (within first 90 days of radiation therapy)
(n=231) Goserelin Acetate Implant + Eulexin™+ Radiation(n=235) Radiation Only
% All% All
Rectum/Large Bowel8076
Bladder5860
Skin3737

Adverse Events During Late Radiation Phase (after 90 days of radiation therapy)
(n=231) Goserelin Acetate Implant + Eulexin™+ Radiation(n=235) Radiation Only
% All% All
Diarrhea3640
Cystitis1616
Rectal Bleeding1420
Proctitis88
Hematuria712

(n=294) Eulexin™+ LHRH agonist(n=28) Placebo + LHRH agonist
% All% All
Hot Flashes6157
Loss of Libido3631
Impotence3329
Diarrhea124
Nausea/Vomiting1110
Gynecomastia911
Other79
Other GI64

Drug Interactions:

Drug interactions increases in prothrombin time have been noted in patients receiving long-term warfarin therapy after eulexin™ was initiated. therefore close monitoring of prothrombin time is recommended and adjustment of the anticoagulant dose may be necessary when eulexin™ capsules are administered concomitantly with warfarin.

Use in Pregnancy:

Pregnancy pregnancy category d there was decreased 24 hour survival in the offspring of pregnant rats treated with eulexin™ at doses of 30, 100 or 200 mg/kg/day (approximately 3, 9 and 19 times the human dose). a slight increase in minor variations in the development of the sternebrae and vertebrae was seen in fetuses of rats treated with two higher doses. feminization of the male rats also occurred at the two higher dose levels. there was a decreased survival rate in the offspring of rabbits receiving the highest dose (15 mg/kg/day, equal to 1.4 times the human dose).

Overdosage:

Overdosage in animal studies with eulexin™ alone, signs of overdose included hypoactivity, piloerection, slow respiration, ataxia, and/or lacrimation, anorexia, tranquilization, emesis, and methemoglobinemia. clinical trials have been conducted with eulexin™ in doses up to 1500 mg per day for periods up to 36 weeks with no serious adverse effects reported. those adverse reactions reported included gynecomastia, breast tenderness, and some increases in sgot. the single dose of eulexin™ ordinarily associated with symptoms of overdose or considered to be life-threatening has not been established. eulexin™ is highly protein bound, and is not cleared by hemodialysis. as in the management of overdosage with any drug, it should be borne in mind that multiple agents may have been taken. if vomiting does not occur spontaneously, it should be induced if the patient is alert. general supportive care, including frequent monitoring of the vital signs and close observation of the patient, is indicated.

Description:

Description eulexin™ capsules contain flutamide, an acetanilid, nonsteroidal, orally active antiandrogen having the chemical name, ,,-trifluoro-2-methyl-4'-nitro- m -propionotoluidide. each capsule contains 125 mg flutamide. the compound is a buff to yellow powder with a molecular weight of 276.22 and the following structural formula: c 11 h 11 f 3 n 2 o 3 in addition, each capsule contains the following inactive ingredients: corn starch, lactose monohydrate, magnesium stearate, povidone, and sodium lauryl sulfate. gelatin capsule shells may contain gelatin, silicon dioxide, sodium lauryl sulfate, titanium dioxide, fda/e172 red iron oxide, fda/e172 yellow iron oxide, and black ink containing pharmaceutical glaze (modified) in sd-45, synthetic black iron oxide, n-butyl alcohol, sda-3a alcohol, fd&c blue no.2 aluminum lake, fd&c red no.40 aluminum lake, fd&c blue no.1 aluminum lake, and d&c yellow no.10 aluminum lake. chemical structure

Clinical Pharmacology:

Clinical pharmacology general in animal studies, flutamide demonstrates potent antiandrogenic effects. it exerts its antiandrogenic action by inhibiting androgen uptake and/or by inhibiting nuclear binding of androgen in target tissues or both. prostatic carcinoma is known to be androgen-sensitive and responds to treatment that counteracts the effect of androgen and/or removes the source of androgen, e.g., castration. elevations of plasma testosterone and estradiol levels have been noted following flutamide administration. pharmacokinetics absorption analysis of plasma, urine, and feces following a single oral 200 mg dose of tritium-labeled eulexin™ to human volunteers showed that the drug is rapidly and completely absorbed. following a single 250 mg oral dose to normal adult volunteers, the biologically active alpha-hydroxylated metabolite reaches maximum plasma concentrations in about 2 hours, indicating that it is rapidly formed from flutamide. food has no effect on the bioavai
lability of flutamide. distribution in male rats administered an oral 5 mg/kg dose of 14 c-flutamide neither flutamide nor any of its metabolites is preferentially accumulated in any tissue except the prostate. total drug levels were highest 6 hours after drug administration in all tissues. levels declined at roughly similar rates to low levels at 18 hours. the major metabolite was present at higher concentrations than eulexin™ in all tissues studied. following a single 250 mg oral dose to normal adult volunteers, low plasma concentrations of eulexin™ were detected. the plasma half-life for the alpha-hydroxylated metabolite of eulexin™ is approximately 6 hours. eulexin™, in vivo , at steady-state plasma concentrations of 24 to 78 ng/ml, is 94% to 96% bound to plasma proteins. the active metabolite of eulexin™, in vivo , at steady-state plasma concentrations of 1556 to 2284 ng/ml, is 92% to 94% bound to plasma proteins. metabolism the composition of plasma radioactivity, following a single 200 mg oral dose of tritium-labeled eulexin™ to normal adult volunteers, showed that eulexin™ is rapidly and extensively metabolized, with eulexin™ comprising only 2.5% of plasma radioactivity 1 hour after administration. at least six metabolites have been identified in plasma. the major plasma metabolite is a biologically active alpha-hydroxylated derivative which accounts for 23% of the plasma tritium 1 hour after drug administration. the major urinary metabolite is 2-amino-5nitro-4-(trifluoromethyl)phenol. excretion eulexin™ and its metabolites are excreted mainly in the urine with only 4.2% of a single dose excreted in the feces over 72 hours. plasma pharmacokinetics of flutamide and hydroxyflutamide in geriatric volunteers (mean ± sd) single dose flutamide hydroxyflutamide steady-state flutamide hydroxyflutamide c max (ng/ml) 25.2 ± 34.2 894 ± 406 113 ± 213 1629 ± 586 elimination half-life (hr) — 8.1 ± 1.3 7.8 9.6 ± 2.5 t max (hr) 1.9 ± 0.7 2.7 ± 1.0 1.3 ± 0.7 1.9 ± 0.6 c min (ng/ml) — — — 673 ± 316 special populations geriatric following multiple oral dosing of 250 mg t.i.d. in normal geriatric volunteers, eulexin™ and its active metabolite approached steady-state plasma levels (based on pharmacokinetic simulations) after the fourth eulexin™ dose. the half-life of the active metabolite in geriatric volunteers after a single eulexin™ dose is about 8 hours and at steady-state in 9.6 hours. race there are no known alterations in eulexin™ absorption, distribution, metabolism, or excretion due to race. renal impairment following a single 250 mg dose of eulexin™ administered to subjects with chronic renal insufficiency, there appeared to be no correlation between creatinine clearance and either c max or auc of eulexin™. renal impairment did not have an effect on the c max or auc of the biologically active alpha-hydroxylated metabolite of eulexin™. in subjects with creatinine clearance of < 29 ml/min, the half-life of the active metabolite was slightly prolonged. eulexin™ and its active metabolite were not well dialyzed. dose adjustment in patients with chronic renal insufficiency is not warranted. hepatic impairment no information on the pharmacokinetics of eulexin™ in hepatic impairment is available (see boxed warnings, hepatic injury ). women, pediatrics eulexin™ has not been studied in women or pediatric subjects. drug-drug interactions interactions between eulexin™ capsules and lhrh-agonists have not occurred. increases in prothrombin time have been noted in patients receiving warfarin therapy (see precautions ).

Pharmacokinetics:

Pharmacokinetics absorption analysis of plasma, urine, and feces following a single oral 200 mg dose of tritium-labeled eulexin™ to human volunteers showed that the drug is rapidly and completely absorbed. following a single 250 mg oral dose to normal adult volunteers, the biologically active alpha-hydroxylated metabolite reaches maximum plasma concentrations in about 2 hours, indicating that it is rapidly formed from flutamide. food has no effect on the bioavailability of flutamide. distribution in male rats administered an oral 5 mg/kg dose of 14 c-flutamide neither flutamide nor any of its metabolites is preferentially accumulated in any tissue except the prostate. total drug levels were highest 6 hours after drug administration in all tissues. levels declined at roughly similar rates to low levels at 18 hours. the major metabolite was present at higher concentrations than eulexin™ in all tissues studied. following a single 250 mg oral dose to normal adult volunteers, low
plasma concentrations of eulexin™ were detected. the plasma half-life for the alpha-hydroxylated metabolite of eulexin™ is approximately 6 hours. eulexin™, in vivo , at steady-state plasma concentrations of 24 to 78 ng/ml, is 94% to 96% bound to plasma proteins. the active metabolite of eulexin™, in vivo , at steady-state plasma concentrations of 1556 to 2284 ng/ml, is 92% to 94% bound to plasma proteins. metabolism the composition of plasma radioactivity, following a single 200 mg oral dose of tritium-labeled eulexin™ to normal adult volunteers, showed that eulexin™ is rapidly and extensively metabolized, with eulexin™ comprising only 2.5% of plasma radioactivity 1 hour after administration. at least six metabolites have been identified in plasma. the major plasma metabolite is a biologically active alpha-hydroxylated derivative which accounts for 23% of the plasma tritium 1 hour after drug administration. the major urinary metabolite is 2-amino-5nitro-4-(trifluoromethyl)phenol. excretion eulexin™ and its metabolites are excreted mainly in the urine with only 4.2% of a single dose excreted in the feces over 72 hours. plasma pharmacokinetics of flutamide and hydroxyflutamide in geriatric volunteers (mean ± sd) single dose flutamide hydroxyflutamide steady-state flutamide hydroxyflutamide c max (ng/ml) 25.2 ± 34.2 894 ± 406 113 ± 213 1629 ± 586 elimination half-life (hr) — 8.1 ± 1.3 7.8 9.6 ± 2.5 t max (hr) 1.9 ± 0.7 2.7 ± 1.0 1.3 ± 0.7 1.9 ± 0.6 c min (ng/ml) — — — 673 ± 316 special populations geriatric following multiple oral dosing of 250 mg t.i.d. in normal geriatric volunteers, eulexin™ and its active metabolite approached steady-state plasma levels (based on pharmacokinetic simulations) after the fourth eulexin™ dose. the half-life of the active metabolite in geriatric volunteers after a single eulexin™ dose is about 8 hours and at steady-state in 9.6 hours. race there are no known alterations in eulexin™ absorption, distribution, metabolism, or excretion due to race. renal impairment following a single 250 mg dose of eulexin™ administered to subjects with chronic renal insufficiency, there appeared to be no correlation between creatinine clearance and either c max or auc of eulexin™. renal impairment did not have an effect on the c max or auc of the biologically active alpha-hydroxylated metabolite of eulexin™. in subjects with creatinine clearance of < 29 ml/min, the half-life of the active metabolite was slightly prolonged. eulexin™ and its active metabolite were not well dialyzed. dose adjustment in patients with chronic renal insufficiency is not warranted. hepatic impairment no information on the pharmacokinetics of eulexin™ in hepatic impairment is available (see boxed warnings, hepatic injury ). women, pediatrics eulexin™ has not been studied in women or pediatric subjects. drug-drug interactions interactions between eulexin™ capsules and lhrh-agonists have not occurred. increases in prothrombin time have been noted in patients receiving warfarin therapy (see precautions ).

Carcinogenesis and Mutagenesis and Impairment of Fertility:

Carcinogenesis and mutagenesis and impairment of fertility in a 1 year dietary study in male rats, interstitial cell adenomas of the testes were present in 49% to 75% of all treated rats (daily doses of 10, 30, and 50 mg/kg/ day were administered). these produced plasma c max values that are 1, 2, 3, and 4 fold respectively, those associated with therapeutic doses in humans. in male rats similarly dosed for 1 year, tumors were still present after 1 year of a drug-free period, but the incidences were 43% to 47%. in a 2 year carcinogenicity study in male rats, daily administration of eulexin™ at these same doses produced testicular interstitial cell adenomas in 91% to 95% of all treated rats as opposed to 11% of untreated control rats. mammary adenomas, adenocarcinomas, and fibroadenomas were increased in treated male rats at exposure levels that were 1 to 4 fold those observed during therapeutic dosing in humans. there are likewise reports of malignant breast neoplasms in men treat
ed with eulexin™ capsules (see adverse reactions section). eulexin™ did not demonstrate dna modifying activity in the ames salmonella/ microsome mutagenesis assay. dominant lethal tests in rats were negative. reduced sperm counts were observed during a 6 week study of eulexin™ mono-therapy in normal human volunteers. eulexin™ did not affect estrous cycles or interfere with the mating behavior of male and female rats when the drug was administered at 25 and 75 mg/kg/day prior to mating. males treated with 150 mg/kg/day (30 times the minimum effective antiandrogenic dose) failed to mate; mating behavior returned to normal after dosing was stopped. conception rates were decreased in all dosing groups. suppression of spermatogenesis was observed in rats dosed for 52 weeks at approximately 3, 8, or 17 times the human dose and in dogs dosed for 78 weeks at 1.4, 2.3, and 3.7 times the human dose.

Clinical Studies:

Clinical studies eulexin™ has been demonstrated to interfere with testosterone at the cellular level. this can complement medical castration achieved with lhrh-agonists which suppresses testicular androgen production by inhibiting luteinizing hormone secretion. the effects of combination therapy have been evaluated in two studies. one study evaluated the effects of eulexin™ and an lhrh-agonist as neoadjuvant therapy to radiation in stage b 2 -c prostatic carcinoma and the other study evaluated eulexin™ and an lhrh-agonist as the sole therapy in stage d 2 prostatic carcinoma. stage b 2 -c prostatic carcinoma the effects of hormonal treatment combined with radiation was studied in 466 patients (231 eulexin™ capsules + goserelin acetate implant + radiation, 235 radiation alone) with bulky primary tumors confined to the prostate (stage b 2 ) or extending beyond the capsule (stage c), with or without pelvic node involvement. in this multicentered, controlled trial, admin
istration of eulexin™ capsules (250 mg t.i.d.) and goserelin acetate (3.6 mg depot) prior to and during radiation was associated with a significantly lower rate of local failure compared to radiation alone (16% vs. 33% at 4 years, p < 0.001). the combination therapy also resulted in a trend toward reduction in the incidence of distant metastases (27% vs. 36% at 4 years, p = 0.058). median disease-free survival was significantly increased in patients who received complete hormonal therapy combined with radiation as compared to those patients who received radiation alone (4.4 vs 2.6 years, p < 0.001). inclusion of normal psa level as a criterion for disease-free survival also resulted in significantly increased median disease-free survival in patients receiving the combination therapy (2.7 vs. 1.5 years, p < 0.001). stage d 2 prostatic carcinoma to study the effects of combination therapy in metastatic disease, 617 patients (311 leuprolide + eulexin™, 306 leuprolide + placebo) with previously untreated advanced prostatic carcinoma were enrolled in a large multicentered, controlled clinical trial. three and one-half years after the study was initiated, median survival had been reached. the median actuarial survival time was 34.9 months for patients treated with leuprolide and eulexin™ versus 27.9 months for patients treated with leuprolide alone. this 7 month increment represents a 25% improvement in overall survival time with the eulexin™ therapy. analysis of progression-free survival showed a 2.6 month improvement in patients who received leuprolide plus eulexin™, a 19% increment over leuprolide and placebo.

How Supplied:

How supplied eulexin™ capsules usp, 125 mg, are available as opaque, beige/beige capsules, imprinted "par/753" on the cap and body. they are available in bottle of 180 (ndc 80725-600-18). store at 20° to 25°c (68° to 77°f) [see usp controlled room temperature]. dispense in a tight, light-resistant container as defined in the usp, with a child-resistant closure (as required).

Information for Patients:

Information for patients patients should be informed that eulexin™ capsules and the drug used for medical castration should be administered concomitantly, and that they should not interrupt their dosing or stop taking these medications without consulting their physician.

Spl Patient Package Insert:

Information for patients eulexin™ (flutamide) capsules usp rx only important information for patients taking eulexin™ capsules. read this information carefully each time your prescription is refilled because there may be new information available. this summary does not tell you everything you need to know about eulexin™ therapy. your doctor is the best source of information about your treatment. ask your doctor about questions you have. what is eulexin™ therapy? eulexin™ capsules, in combination with other therapies, is a treatment option for men with some types of prostate cancer. prostate cancer results from the abnormal growth of prostate cells. medical scientists do not know exactly what causes the abnormal cells, but age, environment, and genetics are important factors. male hormones ("androgens") cause the cancer to grow. the cancer growth can be slowed down by blocking the effect of androgens. the eulexin™ product is used together with an injection
called "lhrh agonist," as a combined treatment called "total androgen blockade." the goal of this treatment is to reduce androgen levels and to block the effect of androgen on the tumor. the lhrh agonist reduces androgen levels. eulexin™ therapy blocks the effect of androgen on the tumor. who should not take the eulexin™ product? you should not take eulexin™ capsules if you have liver problems or if you are allergic to it. eulexin™ capsules are for use only in men; therefore women should not take eulexin™ capsules. are there important risks i should know about eulexin™ therapy? some men taking eulexin™ had liver injury and needed to be hospitalized. in rare cases, men died because of liver failure while they were taking eulexin™ capsules. in about half of these cases, the liver failure occurred in the first 3 months that they were taking eulexin™ capsules. because the eulexin™ product may cause liver failure, it is very important that you have all blood tests recommended by your doctor . these tests help identify whether you are having liver problems. a recommended schedule for these blood tests is: before starting eulexin™ treatment. every month for the first 4 months of therapy. periodically after the first 4 months. in addition, you should call your doctor right away if you have any of the following signs or symptoms: loss of appetite. nausea and vomiting. stomach or abdominal pain. fatigue (feeling extremely tired). flu-like symptoms (muscle aches, soreness). brown urine. jaundice (yellowing of the skin or whites of the eyes). these may be signs of liver failure. how should i take eulexin™ capsules? take your eulexin™ capsules as your doctor has prescribed. the usual dosing is 2 capsules every 8 hours. your doctor will determine whether eulexin™ therapy is right for you based on many different factors. these include how large your tumor is, how far it has spread and your physical condition. in addition to eulexin™ capsules, you may be getting other treatments, including regular injections of lhrh agonist or radiation therapy. do not stop or interrupt any treatment without consulting your healthcare professional. if you miss a dose of eulexin™ capsules, simply continue therapy with your next scheduled dose. do not try to make up for it by taking extra capsules. can i take other medicines? if you are taking any other medicines, especially warfarin (a blood-thinning drug), tell your doctor before beginning eulexin™ therapy. what are the other possible side effects of taking eulexin capsules? in a medical study, when eulexin™ capsules were taken together with an lhrh agonist, the most common side effects were hot flashes, loss of sex drive (libido) and impotence. in addition, some men had diarrhea, nausea or vomiting, and breast enlargement. in another medical study, when the eulexin™ product was taken together with goserelin acetate (an lhrh agonist) and radiation therapy, the side effects of eulexin™ therapy were about the same as when radiation therapy was given alone. these included hot flashes, diarrhea, nausea and skin rash. what can i do if i get diarrhea? if you experience moderate diarrhea due to eulexin™ capsules, the following advice may help: drink plenty of fluids reduce your intake of dairy products (for example, milk, cheese, yogurt). increase your intake of whole grains, fruits and vegetables. stop laxative use. take nonprescription antidiarrheal medicines. if your diarrhea continues or it becomes severe, contact your doctor right away. are there any other lab tests my doctor will be performing? your doctor may perform other regular tests (such as the psa blood test) to ensure that your body is responding to treatment. ask your doctor if you have any questions about how your eulexin™ therapy is being monitored. please ask your doctor about any questions concerning prostate cancer or eulexin™ therapy, or you can also ask for a more detailed leaflet that is written for healthcare professionals. manufactured for: waylis therapeutics llc wixom, mi 48393 844-200-7910 revised: 06/2021

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Principal display panel - 125 mg capsule bottle label ndc 80725-600-18 eulexin™ flutamide capsules usp 125 mg rx only 180 capsules waylis therapeutics principal display panel - 125 mg capsule bottle label


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