Eulexin

Eulexin

 [u-lek´sin]
trademark for a preparation of flutamide, an antiandrogenantineoplastic agent.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

flutamide

(floo-ta-mide) ,

Eulexin

(trade name)

Classification

Therapeutic: antineoplastics
Pharmacologic: antiandrogens
Pregnancy Category: D

Indications

Treatment of prostate carcinoma in conjunction with luteinizing hormone–releasing hormone (LHRH) analogues such as leuprolide.

Action

Antagonizes the effects of androgen (testosterone) at the cellular level.

Therapeutic effects

Decreased growth of prostate carcinoma, an androgen-sensitive tumor.

Pharmacokinetics

Absorption: Well absorbed after oral administration.
Distribution: Unknown.
Metabolism and Excretion: Mostly metabolized by the liver. Some conversion to another antiandrogenic compound (2-hydroxyflutamide).
Half-life: Unknown.

Time/action profile

ROUTEONSETPEAKDURATION
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Contraindications/Precautions

Contraindicated in: Hypersensitivity; Severe hepatic impairment.
Use Cautiously in: Severe cardiovascular disease.

Adverse Reactions/Side Effects

Side effects primarily caused by LHRH antagonist

Central nervous system

  • anxiety
  • confusion
  • drowsiness
  • mental depression
  • nervousness

Cardiovascular

  • edema
  • hypertension

Gastrointestinal

  • hepatotoxicity (life-threatening)
  • diarrhea (most frequent)
  • nausea (most frequent)
  • vomiting (most frequent)

Genitourinary

  • erectile dysfunction (most frequent)
  • loss of libido (most frequent)

Dermatologic

  • photosensitivity
  • rash

Endocrinologic

  • gynecomastia (most frequent)

Miscellaneous

  • hot flashes (most frequent)

Interactions

Drug-Drug interaction

Acts synergistically withLHRH analogues (leuprolide ).

Route/Dosage

Oral (Adults) 250 mg q 8 hr; given concurrently with leuprolide.

Availability

Capsules: 125 mg, 250 mg

Nursing implications

Nursing assessment

  • Monitor for diarrhea, nausea, and vomiting. Adjust diet as tolerated. Notify physician if these symptoms become severe.
  • Lab Test Considerations: May cause elevated AST, ALT, bilirubin, and serum creatinine values. Monitor ALT before therapy, monthly for the first 4 mo of therapy, and periodically thereafter. If ALT rises above 2 times the upper limit of normal, flutamide should be discontinued immediately. Liver function tests should also be obtained at the first sign of nausea, vomiting, abdominal pain, fatigue, anorexia, or hyperbilirubinemia.
    • May cause increased plasma estradiol and testosterone concentrations.

Potential Nursing Diagnoses

Sexual dysfunction (Side Effects)

Implementation

  • Used in combination with LHRH agonist, such as leuprolide.

Patient/Family Teaching

  • Explain that flutamide must be taken in conjunction with leuprolide. Instruct patient to take flutamide exactly as directed. If a dose is missed, take as soon as possible unless almost time for next dose. Do not double doses.
  • Warn patient that side effects such as hot flashes, loss of sex drive, erectile dysfunction, and breast enlargement may be caused by the LHRH agonist. The primary side effect of flutamide alone is diarrhea, but the combination of drugs is necessary to achieve the therapeutic effect.
  • Advise patient to notify health care professional immediately if dark urine, itching, loss of appetite, nausea, vomiting, pain in right side, or yellow eyes or skin occurs. Hepatotoxicity usually resolves when flutamide is discontinued, but it may be progressive and fatal; requires immediate medical attention.

Evaluation/Desired Outcomes

  • Decrease in the spread of prostate cancer.
Drug Guide, © 2015 Farlex and Partners
References in periodicals archive ?
Flutamide * Eulexin Leuprolide injection * Eligard, Lupron Depot Medroxyprogesterone * Provera Naltrexone * Revia, Vivitrol Progesterone * Prometrium Sildenafil * Viagra
All 875 patients received 3 months of medical castration therapy, consisting of leuprolide injection (Procren Depot) plus oral flutamide (Eulexin).
Finasteride (Propecia and Proscar) and flutamide (Eulexin) are in this class.
His aggressive prostate cancer was treated with hormones (Lupron, Eulexin and Proscar for a year followed by Proscar only continuously) and Hoffer's multivitamins that included 10,000 mg/day of vitamin C.
Flutamide (Eulexin) is similar to spironolactone, but may have more severe side effects.
An example of a recent boxed warning that could be lifesaving is carried by the drug Eulexin (flutamide capsules).
for skin ailments), Eulexin (from Schering-Plough for prostate cancer), Nimotop (from Bayer Pharmaceutical Division for stroke), Penetrex (from Rhone-Polene Rorer Pharmaceuticals Inc.
- Two Schering-Plough products (Claritin end Eulexin) represent 68% of the market value of affected product.
The others are Eulexin, Nimotop, Relafen, Dermatop, Penetrex, and Cardiogen-82.
For women with these symptoms, an anti-androgen medication like spironolactone (Aldactone) or flutamide (Eulexin) may be prescribed.
The other potential candidates for patent extensions are ScheringPlough's cancer drug Eulexin; Bayer Corp.'s calcium channel blocker Nimotop; SmithKline Beecham PLC's nonsteroidal anti-inflammatory medication (NSAID) Relafen; Dermatop, Ortho Dermatological's corticosteroid emollient cream; RhonePouleneu Rorer Pharmaceuticals Inc.'s antibacterial drug Penetrex; Braccol Diagnostics' diagnostic agent Cardiogen-82; and G.D.