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Estramustine phosphate oral

Updated 2 Feb 2023 | Alkylating agents

Presentation

Capsules containing estramustine phosphate

Drugs List

  • ESTRACYT 140mg capsules
  • estramustine phosphate 140mg capsules
  • Therapeutic Indications

    Uses

    Carcinoma - prostate

    Carcinoma of the prostate, especially in cases unresponsive to, or relapsing after, treatment by conventional oestrogens (stilbestrol, polyestradiol phosphate, etc) or by orchidectomy.

    Dosage

    Adults

    The standard starting dose is 4 to 6 capsules (560 to 840 mg of estramustine phosphate) per day in divided doses.
    Dosage should be adjusted according to response and gastrointestinal tolerance to a range of 1 to 10 capsules (140 to 1,400 mg of estramustine phosphate) per day.

    Elderly

    The standard starting dose is 4 to 6 capsules (560 to 840 mg of estramustine phosphate) per day in divided doses.
    Dosage should be adjusted according to response and gastrointestinal tolerance to a range of 1 to 10 capsules (140 to 1,400 mg of estramustine phosphate) per day.

    Administration

    For oral administration, in divided doses not less than 1 hour before or 2 hours after meals.

    Contraindications

    Children under 18 years
    Females
    Peptic ulcer
    Severe cardiovascular disorder
    Severe hepatic disorder
    Thromboembolic disorder
    Thrombosis

    Precautions and Warnings

    Cardiovascular disorder
    Cerebrovascular disorder
    Congestive cardiac failure
    Diabetes mellitus
    Epileptic disorder
    Hepatic impairment
    History of thromboembolic disorder
    History of thrombosis
    Hypercalcaemia
    Hypertension
    Ischaemic heart disease
    Metabolic bone disease
    Migraine
    Osteoblastic metastases
    Porphyria
    Renal impairment
    Thrombophlebitis

    Administration of live vaccines is not recommended
    Consult local policy on the safe use of oral anti-cancer drugs
    Treatment to be administered by or under supervision of specialist
    Monitor blood pressure pre-treatment and periodically thereafter
    Perform liver function tests before commencing therapy and during therapy
    Monitor blood counts regularly
    Monitor blood glucose closely in patients with diabetes mellitus
    Monitor serum calcium levels
    May affect results of some laboratory tests
    Discontinue if angioneurotic oedema occurs
    Avoid giving oral dose at same time as food, antacids or mineral supplement
    Male: Ensure adequate contraception during treatment

    Pregnancy and Lactation

    Pregnancy

    Not applicable - not indicated for use in women.

    Women of child bearing potential should use adequate contraception during sexual intercourse with a man being treated with estramustine phosphate.

    Lactation

    Not applicable - not indicated for use in women.

    Side Effects

    Anaemia
    Angioneurotic oedema
    Confusion
    Congestive cardiac failure
    Depression
    Diarrhoea
    Fluid retention
    Gynaecomastia
    Headache
    Hepatic impairment
    Hypersensitivity reactions
    Hypertension
    Impotence
    Ischaemia
    Laryngeal oedema
    Lethargy
    Leukopenia
    Muscle weakness
    Myocardial infarction
    Nausea
    Quincke's oedema
    Rash
    Thrombocytopenia
    Thromboembolic disorders
    Vomiting

    Overdosage

    It is strongly recommended that the UK National Poisons Information Service be consulted on cases of suspected or actual overdose where there is doubt over the degree of risk or about appropriate management.

    The following number will direct the caller to the relevant local centre (0844) 892 0111

    Information may be obtained if you have access to ToxBase the primary clinical toxicology database of the National Poisons Information Service. This is available via password on the internet ( www.toxbase.org ) or if this is unavailable at the backup site ( www.toxbasebackup.org ).

    Further Information

    Last Full Review Date: November 2013

    Reference Sources

    Martindale: The Complete Drug Reference, 37th edition (2011) ed. Sweetman, S. Pharmaceutical Press, London.

    Summary of Product Characteristics: Estracyt capsules. Pharmacia Limited. July 2013.

    Joint Formulary Committee. British National Formulary (online) London: BMJ Group and Pharmaceutical Press Accessed on: November 11, 2013.

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