Skip to main content

Emcyt Side Effects

Generic name: estramustine

Medically reviewed by Last updated on Dec 22, 2023.

Note: This document contains side effect information about estramustine. Some dosage forms listed on this page may not apply to the brand name Emcyt.

Applies to estramustine: oral capsule.

Serious side effects of Emcyt

Along with its needed effects, estramustine (the active ingredient contained in Emcyt) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking estramustine:


Check with your doctor as soon as possible if any of the following side effects occur while taking estramustine:

More common


Other side effects of Emcyt

Some side effects of estramustine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

Less common

For Healthcare Professionals

Applies to estramustine: oral capsule.


Very common (10% or more): Breast tenderness (66%), breast enlargement (60%), gynecomastia

Frequency not reported: Erectile dysfunction[Ref]


Very common (10% or more): Abnormal LDH and/or AST (31%), abnormal hepatic function

Common (1% to 10%): Abnormal bilirubin[Ref]


Very common (10% or more): Edema (19%)

Common (1% to 10%): Chest pain

Frequency not reported: Injection site thrombosis[Ref]


Very common (10% or more): Nausea (15%), diarrhea (12%), minor gastrointestinal upset (11%), vomiting

Common (1% to 10%): Flatulence, gastrointestinal bleeding[Ref]


Very common (10% or more): Dyspnea (11%)

Common (1% to 10%): Pulmonary emboli, upper respiratory discharge, hoarseness, burning throat

Frequency not reported: Larynx edema[Ref]


Very common (10% or more): Congestive heart failure

Common (1% to 10%): Myocardial infarction, thrombophlebitis

Frequency not reported: Myocardial ischemia, hypertension[Ref]


Very common (10% or more): Anemia, leukopenia

Common (1% to 10%): Thrombocytopenia[Ref]


Very common (10% or more): Fluid retention

Common (1% to 10%): Anorexia, thirst[Ref]


Common (1% to 10%): Pruritus, dry skin, rash, easy bruising, flushing, peeling skin on fingertip, thinning hair[Ref]


Common (1% to 10%): Leg cramps

Frequency not reported: Muscular weakness[Ref]

Nervous system

Common (1% to 10%): Lethargy, cerebrovascular accident, headache[Ref]


Common (1% to 10%): Tearing of eyes[Ref]


Common (1% to 10%): Insomnia, emotional lability, anxiety

Frequency not reported: Confusional state, depression[Ref]


Frequency not reported: Hypersensitivity reactions, allergic reactions, angioedema, allergic dermatitis[Ref]


1. Product Information. Emcyt (estramustine). Pharmacia and Upjohn. 2001;PROD.

2. Cerner Multum, Inc. UK Summary of Product Characteristics.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.