Goserelin implant 10.8mg
- Drugs List
- Therapeutic Indications
- Dosage
- Administration
- Contraindications
- Precautions and Warnings
- Pregnancy and Lactation
- Side Effects
- Monograph
Presentation
Implant containing 10.8 mg goserelin.
Drugs List
Therapeutic Indications
Uses
Carcinoma - prostate (if suitable for hormonal manipulation)
Unlicensed Uses
Gonadotrophin-dependent precocious puberty
Dosage
Adults
Inject one 10.8 mg implant every 12 weeks.
Children
Gonadotrophin-dependent precocious puberty (unlicensed)
Inject one 10.8 mg implant every 12 weeks.
Administration
The implant is injected subcutaneously into the anterior abdominal wall.
Prior to administration the instruction card must be read.
Rotate the injection site to prevent atrophy and nodule formation.
Contraindications
Females
Precautions and Warnings
Children under 18 years
Chronic use of drugs that cause osteoporosis
Family history of long QT syndrome
Strong family history of osteoporosis
Tobacco smoking
Underweight patients
Chronic alcoholism
Depression
Diabetes mellitus
History of torsade de pointes
Hypertension
Hypocalcaemia
Hypokalaemia
Hypomagnesaemia
Long QT syndrome
Malnutrition
Metabolic bone disease
Prostate cancer: Prophylaxis of flare with anti-androgen is recommended
Treatment to be initiated and supervised by a specialist
If spinal cord compression present/develops,use specific standard treatment
Monitor closely men at risk of tumour flare for first month of treatment
Monitor closely patient with depression
Monitor ECG in patients at risk of QT prolongation
Monitor for signs and symptoms of glucose intolerance
Monitor patients at risk of spinal cord compression or urinary obstruction
Monitor patients with pre-existing hypertension
Disease flare may occur at beginning of treatment
If ureteric obstruction present/develops,use specific standard treatment
May cause loss of bone mineral density
Not licensed for use in children under 18 years
Consideration should be given to the initial use of an anti-androgen (e.g. cyproterone acetate 300 mg daily for three days before and three weeks after commencement of goserelin) at the start of LHRH analogue therapy since this has been reported to prevent the possible sequelae of the initial rise in serum testosterone, which may be associated with the progression of prostate cancer.
The use of LHRH agonists may cause a reduction in bone mineral density. Therefore, goserelin should be used with caution when treating patients with metabolic bone disease. Bone mineral density should be monitored.
Concurrent use of a bisphosphonate may reduce bone mineral loss.
Patients with injection site injury should be monitored for signs and symptoms of abdominal haemorrhage. Caution should be used when administering to patients with a low BMI and/or patients receiving anticoagulants.
Pregnancy and Lactation
Pregnancy
Goserelin 10.8 mg implant is not indicated for use in women.
The use of all medication in pregnancy should be avoided whenever possible; particularly in the first trimester. Non-drug treatments should also be considered. When essential, a medication with the best safety record over time should be chosen, employing the lowest effective dose for the shortest possible time. Polypharmacy should be avoided. Teratogens taken in the pre-embryonic period, often quoted as lasting until 14 to 17 days post-conception, are believed to have an all-or-nothing effect. Where drugs have a short half-life, and when the date of conception is certain, this may allow women to be reassured where drug exposure has occurred within this time frame. Further advice may be available from the UK National Teratology Information Service (NTIS) and through ToxBase, available via password on the internet ( www.toxbase.org ) or if this is unavailable at the backup site ( www.toxbasebackup.org ).
Lactation
Goserelin 10.8 mg implant is not indicated for use in women.
Neonates, infants born prematurely, those with low birth weight, those with an unstable gastrointestinal function or who have serious illnesses may require special consideration. For any infant, if a drug is prescribed to the nursing mother, it should be at the lowest practical dose and for the shortest time. When drug administration is unavoidable and breastfeeding is to continue, minimisation of exposure of the infant to the drug may sometimes be achieved by timing the maternal doses to just after a feeding episode. Infants exposed to drugs via breast milk should be monitored for unusual signs or symptoms. Interactions between the drug received by the infant from the mother's milk and medication prescribed for the infant should also be considered, for example, when the drug given to the infant may prevent metabolism of the drug received via breast milk.
Specialist advice is available from the UK Drugs in Lactation Advisory Service at https://www.midlandsmedicines.nhs.uk/content.asp?section=6&subsection=17&pageIdx=1
Side Effects
Abdominal discomfort
Acne
Alopecia
Anaphylaxis
Arthralgia
Asthma
Blood dyscrasias
Bone pain
Breast swelling
Breast tenderness
Bruising at injection site
Cardiac failure
Changes in scalp or body hair
Constipation
Decrease in bone mineral density
Decreased glucose tolerance
Depression
Diabetes
Diarrhoea
Dizziness
Dry skin
Erectile dysfunction
Exacerbation of symptoms
Gastro-intestinal disturbances
Gynaecomastia
Hair loss
Headache
Hepatic disorders
Hypercalcaemia
Hyperhidrosis
Hypersensitivity reactions
Hypertension
Hypotension
Increase in serum cholesterol (transient)
Increased bone pain (temporary)
Increased sweating
Injection site reactions
Interstitial pneumonia
Leg cramps
Migraine
Mood changes
Myalgia
Myocardial infarction
Nausea
Nervousness
Paraesthesia
Peripheral oedema
Pituitary adenomas
Pituitary apoplexy
Prolongation of QT interval
Pruritus
Psychotic disorder
Pulmonary embolism
Rash
Reduced libido
Sexual dysfunction
Sleep disturbances
Spinal cord compression
Testicular atrophy
Tiredness
Tumour flare
Tumour pain
Ureteric obstruction
Urticaria
Visual disturbances
Voice changes
Vomiting
Weight changes
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: April 2014
Reference Sources
Drugs During Pregnancy and Lactation: Treatment Options and Risk Assessment, 2nd edition (2007) ed. Schaefer, C., Peters, P. and Miller, R. Elsevier, London.
Martindale: The Complete Drug Reference, 37th edition (2011) ed. Sweetman, S. Pharmaceutical Press, London.
Medications and Mothers' Milk, 14th Edition (2010) Hale, T. Hale Publishing, Amarillo, Texas.
Summary of Product Characteristics: Zoladex LA 10.8mg. AstraZeneca UK Ltd. Revised June 2015.
NICE Evidence Services Available at: www.nice.org.uk Last accessed: 07 September 2017
Medscape UK | Univadis prescription drug monographs & interactions are based on FDB Multilex Content

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