EMCYT Capsule Ref.[50719] Active ingredients: Estramustine

Source: FDA, National Drug Code (US)  Revision Year: 2018 

4. Contraindications

EMCYT Capsules should not be used in patients with any of the following conditions:

  • Known hypersensitivity to either estradiol or to nitrogen mustard.
  • Active thrombophlebitis or thromboembolic disorders, except in those cases where the actual tumor mass is the cause of the thromboembolic phenomenon and the physician feels the benefits of therapy may outweigh the risks.

5. Warnings

It has been shown that there is an increased risk of thrombosis, including fatal and nonfatal myocardial infarction, in men receiving estrogens for prostatic cancer. EMCYT Capsules should be used with caution in patients with a history of thrombophlebitis, thrombosis, or thromboembolic disorders, especially if they were associated with estrogen therapy. Caution should also be used in patients with cerebral vascular or coronary artery disease.

Glucose Tolerance—Because glucose tolerance may be decreased, diabetic patients should be carefully observed while receiving EMCYT.

Elevated Blood Pressure—Because hypertension may occur, blood pressure should be monitored periodically.

7. Adverse Reactions

In a randomized, double-blind trial comparing therapy with EMCYT Capsules in 93 patients (11.5 to 15.9 mg/kg/day) or diethylstilbestrol (DES) in 93 patients (3.0 mg/day), the following adverse effects were reported:

 EMCYT
n=93
DES
n=93
CARDIOVASCULAR-RESPIRATORY
Cardiac Arrest02
Cerebrovascular Accident20
Myocardial Infarction31
Thrombophlebitis37
Pulmonary Emboli25
Congestive Heart Failure32
Edema1917
Dyspnea113
Leg Cramps811
Upper Respiratory Discharge11
Hoarseness10
GASTROINTESTINAL
Nausea158
Diarrhea1211
Minor Gastrointestinal Upset116
Anorexia43
Flatulence20
Vomiting11
Gastrointestinal Bleeding10
Burning Throat10
Thirst10
INTEGUMENTARY
Rash14
Pruritus22
Dry Skin20
Pigment Changes03
Easy Bruising30
Flushing10
Night Sweats01
Fingertip—Peeling Skin10
Thinning Hair11
BREAST CHANGES
Tenderness6664
Enlargement
Mild6054
Moderate1016
Marked05
MISCELLANEOUS
Lethargy Alone43
Depression02
Emotional Lability20
Insomnia30
Headache11
Anxiety10
Chest Pain11
Hot Flashes01
Pain in Eyes01
Tearing of Eyes11
Tinnitus01
LABORATORY ABNORMALITIES
Hematologic
Leukopenia42
Thrombopenia12
Hepatic
Bilirubin Alone15
Bilirubin and LDH01
Bilirubin and SGOT21
Bilirubin, LDH and SGOT20
LDH and/or SGOT3128
Miscellaneous
Hypercalcemia—Transient01

6. Precautions

Food/Drug Interaction

Milk, milk products, and calcium-rich foods or drugs may impair the absorption of EMCYT.

6.1. General

Fluid Retention. Exacerbation of preexisting or incipient peripheral edema or congestive heart disease has been seen in some patients receiving therapy with EMCYT Capsules. Other conditions which might be influenced by fluid retention, such as epilepsy, migraine, or renal dysfunction, require careful observation.

EMCYT may be poorly metabolized in patients with impaired liver function and should be administered with caution in such patients.

Because EMCYT may influence the metabolism of calcium and phosphorus, it should be used with caution in patients with metabolic bone diseases that are associated with hypercalcemia or in patients with renal insufficiency. Patients with prostate cancer and osteoblastic metastases are at risk for hypocalcemia and should have calcium levels closely monitored.

Gynecomastia and impotence are known estrogenic effects.

Allergic reactions and angioedema at times involving the airway have been reported.

6.2. Information for Patients

Because of the possibility of mutagenic effects, patients should be advised to use contraceptive measures.

6.3. Laboratory Tests

Certain endocrine and liver function tests may be affected by estrogen-containing drugs. EMCYT may depress testosterone levels. Abnormalities of hepatic enzymes and of bilirubin have occurred in patients receiving EMCYT. Such tests should be done at appropriate intervals during therapy and repeated after the drug has been withdrawn for two months.

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