Pharmacy Guide

Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.

Pharmacy Guide

Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.

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Zomacton 4mg Injection

⚠ This medicine appears to have been discontinued

The electronic medicines compendium (emc) no longer publishes a Summary of Product Characteristics for this product, which usually means it is no longer marketed in the UK. The patient leaflet below is kept for reference, but the product may not be available.

If you were prescribed this medicine, other products containing Somatropin may still be available. Do not stop your treatment — ask your pharmacist or GP what to use instead.

Active substance: Somatropin
Source: electronic medicines compendium (emc)
Official leaflet: Read the PIL on emc

What it is and what it is used for

for ZOMACTON contains the active substance, somatropin also known as growth hormone. Growth hormone is produced naturally in the body. It has an important role in growth. ZOMACTON contains somatropin made in a pharmaceutical manufacturing facility. ZOMACTON is used for the long-term treatment of:

  • Children who have growth failure due to insufficient growth hormone production;
  • Short stature when present as a feature of Turner's syndrome (a genetic disorder affecting females).

What you need to know before you take it

e ZOMACTON Do not use ZOMACTON

  • if you are allergic to somatropin or any of the other ingredients of this medicine (listed in section 6)
  • in children with closed epiphyses (this is when bone growth is completed)
  • Do not use ZOMACTON and tell your doctor if you have an active tumour (cancer). Tumours must be inactive and you must have finished your anti-tumour treatment before you start your treatment with ZOMACTON.
  • in premature babies or neonates due to the presence of benzyl alcohol as excipient
  • in patients who are seriously ill due to complications e.g. following open heart or abdominal surgery, multiple injuries from an accident, or respiratory failure
  • in children with chronic renal disease at time for renal transplantation

Androgens, oestrogens and anabolic steroids can accelerate bone maturation and therefore diminish the final height. Patients suffering of diabetes may have adjusted their insulin dose as somatropin can induce a state of insulin resistance. Please tell your doctor if you are on treatment with regularly prescribed medication e.g. steroids, medication for epilepsy or medication to suppress the body's immune system. Pregnancy and breast-feeding There is no experience from use in pregnant woman. ZOMACTON must not be used during pregnancy. It is not known whether ZOMACTON passes over into breastmilk. ZOMACTON must not be used during breastfeeding. Driving and using machines ZOMACTON has no or negligible influence on the ability to drive or use machines ZOMACTON contains benzyl alcohol The solution contains benzyl alcohol 9 mg/ml. Due to the presence of benzyl alcohol as excipient, ZOMACTON may cause toxic reactions and allergic reactions in infants and children up to 3 years old and must not be given to premature babies or neonates.

How to take it

ZOMACTON Always use this medicine exactly as your doctor has told you. Check with your doctor or pharmacist if you are not sure. Your doctor or nurse will normally decide with you, the most suitable method of administration and provide dosage instructions according to the method used. Your doctor or nurse will tell you the correct dose for you. The dose is administered subcutaneously (under the skin) with a syringe or with the needle device Ferring Pen. Dosage: Growth hormone deficiency in children: Your doctor will calculate the precise dose for you, based on your bodyweight. Generally, a dose of 0.17 – 0.23 mg per kg bodyweight per week is recommended. This weekly amount may be divided into six or seven doses, corresponding to a daily dose of 0.02 – 0.03mg per kg bodyweight. The maximum recommended weekly dosage is 0.27 mg per kg bodyweight corresponding to daily injections of up to about 0.04mg per kg bodyweight. Turners Syndrome (females only): Your doctor will calculate the precise dose for you, based on your bodyweight. Generally, a dose of 0.33 mg per kg bodyweight per week is recommended. This weekly amount may be divided into six or seven doses, corresponding to a daily dose of 0.05 mg per kg bodyweight. Instructions for reconstitution The powder should only be dissolved with the solvent provided.

Warnings and precautions Talk to your doctor or pharmacist before using ZOMACTON

  • ZOMACTON may due to the presence of benzyl alcohol as excipient cause toxic reactions and allergic reactions in infants and children up to 3 years old and must not be given to premature babies and neonates.
  • Patients with Prader-Willi syndrome should not be treated with ZOMACTON unless they are also suffering from growth hormone failure.
  • ZOMACTON therapy should be used only under the supervision of a qualified physician experienced in the management of patients with growth deficiency.
  • If you have a family history of diabetes mellitus, your blood sugar levels may be checked at intervals by your doctor. If you are a diabetic, you will require strict monitoring of blood glucose and your dose may need to be adjusted to maintain diabetic control. Your doctor will tell you if this is necessary.

Two concentrations can be prepared depending on the volume of solvent used. Your doctor will tell you which strength to use.

  • for administration using a syringe or Ferring-Pen use 1.3 ml of solvent for a concentration of 3.3 mg/ml (taking into account the whole content of the vial which is greater than 4 mg). The reconstituted powder and solvent for solution for injection should be administered using a syringe.
  • for administration using a syringe only, use 3.2 ml of solvent for a concentration of 1.3 mg/ml. (taking into account the whole content of the vial which is greater than 4 mg). The reconstituted powder and solvent for solution for injection should be administered using a syringe. Reconstitution should be performed in accordance with good practice rules, particularly in the respect of asepsis. 1. Hands should be washed
  • If your growth hormone deficiency results from an intracranial lesion, you will be carefully monitored for progression or recurrence of the lesion. If this is confirmed, the doctor will tell you if you need to stop treatment with ZOMACTON.
  • Please consult the doctor if you develop signs or symptoms of relapse due to previous malignant disease.
  • If you have a replacement therapy with glucocorticoids, you should consult your doctor regularly, as you may need adjustment of your glucocorticoid dose.
  • If you develop any of the following while you are on treatment with ZOMACTON, contact your doctor or nearest casualty department at once:
  • repeated or severe headache;
  • problems with vision;
  • nausea and/or vomiting.

2 a. Fit the needle onto the graduated syringe. b. Remove the plastic top on the vial. c. Wipe the top of the vial with an alcohol swap. Do to touch the rubber stopper after cleaning.

  • Treatment with ZOMACTON may lead to a deficiency of thyroid hormone that may require replacement therapy. To check for this, your doctor will normally carry out tests to ensure that your thyroid gland is working properly.
  • Some children with growth hormone deficiency have developed leukaemia (increased number of white blood cells), whether or not they have received treatment with growth hormone. However there is no evidence that leukaemia incidence is increased in growth hormone recipients without predisposing factors. No cause and effect relationship with growth hormone treatment has been proven.

3 Snap off the top of the solvent ampoule. Remove the plastic cover on the needle. Make sure that the plunger is completely pushed in before introducing the needle into the ampoule. Slowly draw up the required volume in the syringe.

  • Please consult the doctor at once if you develop a limp, or hip or knee pain.
  • If you are suffering of complications following post surgery, trauma or acute respiratory failure, consult your doctor.
  • If you require surgery, are seriously injured in an accident or become seriously ill, your doctor may review your treatment.
  • ZOMACTON may cause an inflammation of the pancreas, which causes severe pain in the abdomen and back. Contact your doctor if you or your child develops stomach ache after taking ZOMACTON.

4 Place the needle into the centre of the clean rubber stopper and into the vial and inject the solvent slowly into the vial aiming the stream of liquid against the glass wall in order to avoid foam.

Other medicines and ZOMACTON Tell your doctor or pharmacist if you are using, have recently used or might use any other medicines, including medicines obtained without prescription. Patients treated with glucocorticoids should have their dose carefully adjusted as glucocorticoids can inhibit the growth promoting effect of somatropin. If you are on treatment with steroids due to insufficient production of ACTH (adrenocorticotrophic hormone) then please tell your doctor.

5 The vial must then be swirled with a gentle rotary motion until the contents are completely dissolved in order to obtain a clear and colourless solution.

Since the powder mainly contains proteins, shaking or vigorous mixing is not recommended. If after mixing, the solution is cloudy or contains particles, the vial and its contents should be disposed of. In case of cloudiness after refrigeration, the solution should be allowed to warm up to room temperature (25°C). If cloudiness still persists or coloration appears, dispose of the vial and its contents. The solution should be used within 14 days after reconstitution if stored in a refrigerator. Any unused solution in the vial should be disposed of at the end of the 14-day storage period. Instructions for administration The clear, colourless solution should then be administered subcutaneously as you have shown at the clinic using either a syringe or Ferring Pen. Following reconstitution the following steps should be performed for injection 1. Hands should be washed 2. The top of the vial should be wiped with an alcohol swab to prevent contamination of the content. Do not touch the rubber stopper after cleaning. 3. Turn the vial upside down keeping the top of the needle below the surface of the medication. Gently pull back on the plunger until your prescribed amount of medication fills the syringe. If you do not have enough medication for a full dose, reconstitute a new vial to make up the difference. 4. With the needle still in the upside down vial, gently tap the syringe to loosen any air bubbles 5. Remove the needle from the vial and carefully replace the needle cap until ready to inject 6. Thoroughly clean the injection site with an alcohol swap 7. Check that the correct dose is in the syringe 8. Remove the needle cap and hold the syringe the way you hold a pencil 9. With your free hand, gently pinch the skin around the injection site between your fingers 10. Insert the needle into the tissue beneath the skin's surface at a 45° to 90° angle to reduce discomfort

  • Bone pain
  • Carpal tunnel syndrome
  • Neoplasm malignant, neoplasm
  • Sleepiness (somnolence)
  • Involuntary eye movement (nystagmus)
  • Personality disorders
  • Urinary incontinence, haematuria, polyuria, increased urine frequency, urine abnormality
  • Injection site reactions (incl. lipodystrophy, skin atrophy, dermatitis exfoliative, urticaria, hirsutism, skin hypertrophy)
  • Breast enlargement (gynecomastia) Children only:
  • Stiffness in the legs and arms Adults only:
  • High blood pressure (hypertension) Rarely reported side effects (may affect up to 1 in 1,000 people): Children and Adults:
  • Diarrhoea
  • Renal function test abnormal
  • Diabetes mellitus type II
  • Tingling or numbness in certain areas of the body (neuropathy),
  • A build up of fluid around the brain (appears as repreated or severe headache, blurred vision and nausea and/or vomiting), Children only:
  • High blood pressure (Hypertension)
  • Difficulty falling asleep or/and difficulty staying asleep (insomnia),
  • Numbness, tingling, burning or creeping on the skin (paresthesia) Very rarely reported side effects (may affect up to 1 in 10,000 people): Children only:
  • Leukaemia (the occurrence appears to be no more common than in children in the general population) Reporting of side effects If you get any side effects, talk to your doctor or nurse. This includes any side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme, website: www.mhra.gov. uk/yellowcard. By reporting side effects you can help provide more information on the safety of this medicine.

11. Holding the syringe in place, pull back (if there is blood in the syringe, it means you have entered a blood vessel. Do not inject ZOMACTON. Withdraw the needle, discard all supplies, and go back to step 1. Choose and clean a new injection site). If no blood appears, slowly push the plunger until the syringe is empty

Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them. The subcutaneous administration of growth hormone may lead to an increase or decrease of fat at the site of administration. It is therefore recommended to frequently change the site of administration. On rare occasions, patients develop pain and an itchy rash at the site of administration. Very commonly reported side effects (may affect more than 1 in 10 people) Adults only:

  • Swelling due to the build up of fluid, especially in the hands and feet (Oedema)
  • Mild high blood sugar (hyperglycaemia)
  • Joint pain (Arthralgia)
  • Muscle pain (Myalgia)
  • Headache
  • Numbness, tingling, burning or creeping on the skin (Paresthesia) Commonly reported side effects (may affect up to 1 in 10 people): Children and Adults:
  • Hypothyroidism
  • An immune reaction to the growth hormone, which may show up in a blood test (antibody building)
  • Headache,
  • Increased tightness of muscle tone (hypertonia), Children only:
  • Swelling due to the build up of fluid, especially in the hands and feet (Oedema, peripheral oedema,)
  • Injection site reactions,
  • Weakness (asthenia)
  • Glucose tolerance impaired
  • Joint pain (Arthralgia);
  • Muscle pain (Myalgia) Adults only:
  • Stiffness in the legs and/or arms
  • Difficulty falling asleep or/and difficulty staying asleep (insomnia) Uncommon reported side effects (may affect up to 1 in 100 people) Children and Adults:
  • Anemia
  • Rapid heart rate (tacycardia)
  • Feel a whirling or spinning (vertigo)
  • Double vision (diplopia)
  • Papilloedema
  • Vomiting, abdominal pain, flatulence, nausea
  • Weakness,
  • Injection site atrophy, injection site haemorrhage, injection site mass, hypertrophy
  • Low blood sugar (hypoglycaemia)
  • Hyperphosphatemia
  • Muscle atrophy

Keep this medicine out of the sight and reach of children.

Store in a refrigerator at 2°C – 8°C; keep in the outer carton in order to protect it from light. After reconstitution, the solution may be stored for a maximum of 14 days in a refrigerator (2°C- 8°C). Store the vial in an upright position. Any unused solution in the vial should be disposed of at the end of 14day storage period. In case of cloudiness after refrigeration, the solution should be allowed to warm up to room temperature (25°C). If cloudiness still persists, or coloration appears, dispose of the vial and its contents. Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.

How to store it

Zomacton

12. Quickly pull the needle straight out and apply pressure to the site of injection with a sterile gauze pad. Throw away the needle and syringe in your sharps disposable container

Do not use this medicine after the expiry date which is stated on the packaging. The expiry date refers to the last day of that month.

Do not share your syringes, needles, or vials with anyone else. You may give them an infection or get one from them. Any unused product or waste material should be disposed of in accordance with local requirements. The Ferring pen (a needle device) is not provided in the packaging. Specific instructions for the use of the Ferring Pen are given in a brochure supplied with the device. If you use more ZOMACTON than you should An overdose may cause hypoglycaemia (low blood sugar), followed by hyperglycaemia (high blood sugar). In the event of an overdose, contact the doctor or nearest hospital casualty department at once. The effects of repeated overdosing are unknown. If you forget to use ZOMACTON In the event of a missed dose, do not worry. Carry on as usual and administer the next dose at your usual time. You may experience hypoglycaemia (low blood sugar level). Although the long-term effectiveness of the treatment will not be affected, you should consult your doctor if this happens.

Contents of the pack and other information

What ZOMACTON contains The active substance is somatropin : 4 mg in a vial, corresponding to a concentration of 1.3 mg/ml or 3.3 mg/ml after reconstitution. The other ingredients are: Powder: Mannitol Solvent: benzyl alcohol, sodium chloride and water for injections ZOMACTON contains less than 1 mmol sodium (23 mg) per dose, so it is essentially "sodium-free" What ZOMACTON looks like and contents of the pack ZOMACTON is a powder and solvent for solution for injection. Powder in a vial (4mg somatropin) and solvent in an ampoule (3.5ml), available in pack size of 1, 5 or 10 with a syringe and a needle. Not all pack sizes may be marketed. The powder is white to off white in colour. After reconstitution, the solution is clear and colourless.

Marketing Authorisation Holder and Manufacturer Marketing Authorisation Holder: Ferring Pharmaceuticals Ltd, Drayton Hall, Church Road, West Drayton, UB7 7PS, UK Zomacton 4mg Injection: PL 03194/0052 Isotonic Saline Solution 0.9%: PL 03194/0054 Manufacturer: Ferring GmbH, Wittland 11, D-24109 Kiel, Germany This medicine is authorised in the Member States of the European Economic Area and in the United Kingdom (Northern Ireland) under the following names: ZOMACTON: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden, United Kingdom This leaflet was last revised in June 2021. ZOMACTON, FERRING and the FERRING Logo are trademarks of Ferring B.V

Frequently asked questions about Zomacton 4mg Injection

How do I take Zomacton 4mg Injection?

Zomacton 4mg Injection comes as injection containing 4mg. Always follow the dose your doctor or pharmacist has given you, and read the leaflet that comes with the medicine.

What is the active substance in Zomacton 4mg Injection?

The active substance in Zomacton 4mg Injection is somatropin.

Where does this information come from?

This leaflet reproduces the patient information leaflet approved for Zomacton 4mg Injection, as published on the electronic medicines compendium (emc). The version printed inside your medicine’s packaging is the one that applies to you.

Can I get Zomacton 4mg Injection without a prescription?

Whether a medicine is available over the counter or on prescription only depends on its licence. Check the leaflet, or ask your pharmacist — they can tell you straight away.

About this leaflet

The text above reproduces the patient information leaflet approved for this medicine, restructured for easier reading.

Medical disclaimer: This page is for information only and does not replace advice from your doctor or pharmacist. Always read the leaflet supplied with your medicine. If you are unwell, call NHS 111; in an emergency, call 999.

Medicines with the same active substance: Somatropin (18 medicines)
See every medicine containing this substance, or browse the full A–Z of active substances.
⚕For healthcare professionals — Summary of Product Characteristics (SmPC)Full SmPC: dosage, interactions, contraindications, warnings+
Technical information intended for healthcare professionals (doctors and pharmacists). The Summary of Product Characteristics (SmPC) is the official document approved by the MHRA/EMA. It does not replace the patient leaflet or a doctor’s advice.

4.1. Therapeutic indications

Zomacton is indicated for the long-term treatment of children who have growth failure due to inadequate secretion of growth hormone and for the long-term treatment of growth retardation due to Turner's Syndrome confirmed by chromosome analysis.

4.2. Posology and method of administration

Posology

ZOMACTON therapy should be used only under the supervision of a qualified physician experienced in the management of patients with growth hormone deficiency.

The dosage and schedule of administration of ZOMACTON should be individualised for each patient.

The duration of treatment, usually a period of several years, will depend on maximum achievable therapeutic benefit.

Growth Hormone Deficiency

Generally, a dose of 0.17 - 0.23 mg/kg bodyweight (approximating to 4.9 mg/m2 – 6.9 mg/m2 body surface area) per week divided into 6 - 7 s.c. injections is recommended (corresponding to a daily injection of 0.02 – 0.03 mg/kg bodyweight or 0.7 - 1.0 mg/m2 body surface area). The total weekly dose of 0.27 mg/kg or 8 mg/m2 body surface area should not be exceeded (corresponding to daily injections of up to about 0.04 mg/kg).

Turner's Syndrome

Generally, a dose of 0.33 mg/kg/bodyweight (approximating to 9.86 mg/m2/body surface area) per week divided into 6 - 7 s.c. injections is recommended (corresponding to daily injections of 0.05 mg/kg/bodyweight or 1.40-1.63 mg/m2/body surface area).

Method of administration

The required ZOMACTON dose is administered by using the Ferring-Pen (a needle device) or alternatively a conventional syringe.

Specific instructions for use of the Ferring-Pen are given in a brochure supplied with the device.

The clear, colourless solution should then be administered subcutaneously.

Following reconstitution, the following steps should be performed for injection

1. Hands should be washed.

2. The top of the vial should be wiped with an alcohol swab to prevent contamination of the content. Do not touch the rubber stopper after cleaning.

3. Turn the vial upside down keeping the top of the needle below the surface of the medication. Gently pull back on the plunger until your prescribed amount of medication fills the syringe. If you do not have enough medication for a full dose, reconstitute a new vial to make up the difference.

4. With the needle still in the upside down vial, gently tap the syringe to loosen any air bubbles.

5. Remove the needle from the vial and carefully replace the needle cap until ready to inject.

6. Thoroughly clean the injection site with an alcohol swap.

7. Check that the correct dose is in the syringe.

8. Remove the needle cap and hold the syringe the way you hold a pencil.

9. With your free hand, gently pinch the skin around the injection site between your fingers.

10. Insert the needle into the tissue beneath the skin's surface at a 45° to 90° angle to reduce discomfort.

11. Holding the syringe in place, pull back (if there is blood in the syringe, it means you have entered a blood vessel. Do not inject ZOMACTON. Withdraw the needle, discard all supplies, and go back to step 1. Choose and clean a new injection site). If no blood appears, slowly push the plunger until the syringe is empty.

12. Quickly pull the needle straight out and apply pressure to the site of injection with a sterile gauze pad. Throw away the needle and syringe in your sharps disposable container.

Do not share your syringes, needles, or vials with anyone else. You may give them an infection or get one from them.

The subcutaneous administration of growth hormone may lead to loss or increase of adipose tissue at the injection site. Therefore, injection sites should be alternated.

For instructions on reconstitution of the medicinal product before administration, see section 6.6.

4.3. Contraindications

Hypersensitivity to the active substance or to any of the excipients listed in section 6.1

Zomacton must not be given to premature babies or neonates as the solvent contains benzyl alcohol.

Zomacton must not be used when there is any evidence of activity of a tumour. Intracranial tumours must be inactive and antitumor therapy must be completed prior to starting GH therapy. Treatment should be discontinued if there is evidence of tumour growth.

Zomacton should not be used for growth promotion in children with closed epiphyses.

Patients with acute critical illness suffering complications following open heart surgery, abdominal surgery, multiple accidental trauma, acute respiratory failure or similar conditions should not be treated with Zomacton.

In children with chronic renal disease, treatment with Zomacton should be discontinued at renal transplantation.

4.4. Special warnings and precautions for use

The maximum recommended daily dose should not be exceeded (see section 4.2).

Due to the presence of benzyl alcohol as excipient, ZOMACTON may cause toxic reactions and anaphylactoid reactions in infants and children up to 3 years old and must not be given to premature babies or neonates.

ZOMACTON is not indicated for the long term treatment of paediatric patients who have growth failure due to genetically confirmed Prader-Willi syndrome, unless they also have a diagnosis of GH deficiency.

There have been reports of sleep apnoea and sudden death after initiating therapy with growth hormone in paediatric patients with Prader-Willi syndrome who had one or more of the following risk factors: severe obesity, history of upper airway obstruction or sleep apnoea or unidentified respiratory infection.

Rare cases of benign intra-cranial hypertension have been reported. In the event of severe or recurring headache, visual problems, and nausea/vomiting, a funduscopy for papilla edema is recommended. If papilla edema is confirmed, diagnosis of benign intra-cranial hypertension should be considered and if appropriate growth hormone treatment should be discontinued (see also section 4.8). At present, there is insufficient evidence to guide clinical decision making in patients with resolved intracranial hypertension. If growth hormone treatment is restarted, careful monitoring for symptoms of intracranial hypertension is necessary.

Leukaemia has been reported in a small number of growth hormone deficient patients treated with somatropin as well as in untreated patients. However, there is no evidence that leukaemia incidence is increased in growth hormone recipients without predisposition factors.

As with all somatropin containing products, a small percentage of patients may develop antibodies to somatropin. The binding capacity of these antibodies is low and there is no effect on growth rate. Testing for antibodies to somatropin should be carried out in any patient who fails to respond to therapy.

Growth hormone increases the extrathyroidal conversion of T4 to T3 and may, as such, unmask incipient hypothyroidism. Monitoring of thyroid function should therefore be conducted in all patients. In patients with hypopituitarism, standard replacement therapy must be closely monitored when somatropin therapy is administered.

Because somatropin may reduce insuline sensitivity , patients should be monitored for evidence of glucose intolerance. For patients with diabetes mellitus, the insuline dose may require adjustment after somatropin containing product therapy is initiated. Patients with diabetes or glucose intolerance should be monitored closely during somatropin therapy. ZOMACTON should also be used with caution in patients with a family history predisposing for the disease.

Introduction of somatropin treatment may result in inhibition of 11βHSD-1 and reduced serum cortisol concentrations. In patients treated with somatropin, previously undiagnosed central (secondary) hypoadrenalism may be unmasked and glucocorticoid replacement may be required. In addition, patients treated with glucocorticoid replacement therapy for previously diagnosed hypoadrenalism may require an increase in their maintenance or stress doses, following initiation of somatropin treatment (see section 4.5).

In patients with growth hormone deficiency secondary to an intra-cranial lesion, frequent monitoring for progression or recurrence of the underlying disease process is advised. In childhood cancer survivors, an increased risk of a second neoplasm has been reported in patients treated with somatropin after their first neoplasm. Intracranial tumours, in particular meningiomas, in patients treated with radiation to the head for their first neoplasm, were the most common of these second neoplasms

Discontinue ZOMACTON therapy if progression or recurrence of the lesion occurs.

In patients with previous malignant diseases special attention should be given to signs and symptoms of relapse.

Scoliosis may progress in any child during rapid growth. Signs of scoliosis should be monitored during somatropin treatment.

Slipped capital femoral epiphysis may occur more frequently in patients with endocrine disorders. A patient treated with ZOMACTON who develops a limp or complains of hip or knee pain should be evaluated by a physician.

The effects of treatment with growth hormone on recovery were studied in two placebo controlled trials involving 522 critically ill adult patients suffering complications following open heart surgery, abdominal surgery, multiple accidental trauma, or acute respiratory failure.

Mortality was higher (42 % vs. 19 %) among patients treated with growth hormones (doses 5.3 to 8 mg/day) compared to those receiving placebo. Based on this information, such patients should not be treated with growth hormones. As there is no information available on the safety of growth hormone substitution therapy in acutely critically ill patients, the benefits of continued treatment in this situation should be weighed against the potential risks involved.

Pancreatitis

Although rare, pancreatitis should be considered in somatropin-treated patients who develop abdominal pain, especially in children.

Traceability

In order to improve the traceability of biological medicinal products, the name and the batch number of the administered product should be clearly recorded.

4.5. Interaction with other medicinal products and other forms of interaction

Concomitant treatment with glucocorticoide inhibits the growth-promoting effects of somatropin containing products. Patients with ACTH deficiency should have their glucocorticoid replacement therapy carefully adjusted to avoid any inhibitory effect on growth hormone.

Growth hormone decreases the conversion of cortisone to cortisol and may unmask previously undiscovered central hypoadrenalism or render low glucocorticoid replacement doses ineffective (see section 4.4).

High doses of androgens, oestrogens, or anabolic steroids can accelerate bone maturation and may, therefore, diminish gain in final height.

Because somatropin can induce a state of insulin resistance, insulin dose may have to be adjusted in diabetic patients receiving concomitant Zomacton.

Data from an interaction study performed in GH deficient adults suggests that somatropin administration may increase the clearance of compounds known to be metabolised by cytochrome P450 isoenzymes. The clearance of compounds metabolised by cytochrome P450 3A4 (e.g. sex steroids, corticosteroids, anticonvulsants and cyclosporin) may be especially increased resulting in lower plasma levels of these compounds. The clinical significance of this is unknown.

4.6. Fertility, pregnancy and lactation

Pregnancy

For ZOMACTON, no clinical data on exposed pregnancies are available. There is no data from the use of ZOMACTON during pregnancy in animals. (See section Preclinical safety data 5.3)

Therefore, ZOMACTON is not recommended during pregnancy and in woman of childbearing potential not using contraception.

Breastfeeding

There have been no clinical studies conducted with somatropin containing products in breast-feeding women. It is not known whether somatropin is excreted in human milk. Therefore, caution should be exercised when somatropin containing products are administered to breast-feeding women.

4.7. Effects on ability to drive and use machines

ZOMACTON has no or negligible influence on the ability to drive and use machines.

4.8. Undesirable effects

The subcutaneous administration of growth hormone may lead to loss or increase of adipose tissue at the injection site. On rare occasions patients have developed pain and an itchy rash at the site of injection.

System Organ Class

Very Common

(≥ 1/10)

Common

(≥1/100 to <1/10)

Uncommon

(≥1/1000, to <1/100)

Rare

(≥1/10,000 to <1/1,000)

Very rare

(<1/10,000)

Blood and lymphatic system disorders

anemia

Cardiac disorders

tachycardia, (adult) hypertension

(children) hypertension

Ear and labyrinth disorders

vertigo

Endocrine disorders

hypothyroidism

Eye disorders

papilloedema, diplopia

Gastrointestinal disorders

vomiting, abdominal pain, flatulence, nausea

diarrhoea

General disorders and administration site conditions

(adults) oedema, (adults) peripheral oedema

(children) oedema, (children) peripheral oedema, injection site reactions, asthenia

weakness, injection site atrophy, injection site haemorrhage, injection site mass, hypertrophy

Immune system disorders

antibody building

Investigations

renal function test abnormal

Metabolism and nutrition disorders

(adult) mild hyperglycaemia

(children) glucose tolerance impaired

hypoglycaemia, hyperphosphatemia

diabetes mellitus type II

Musculoskeletal and connective tissue disorders

(adults) arthralgia; (adults) myalgia

(children) arthralgia; (children) myalgia

(Adults) Stiffness in the extremities

muscle atrophy, bone pain, carpal tunnel syndrome

(Children) Stiffness in the extremities

Neoplasms benign, malignant and unspecified

neoplasm malignant, neoplasm

(children) leukaemia

Nervous system disorders

(adult) headache, (adult) paresthesia

headache, hypertonia, (adult) insomnia

somnolence, nystagmus

neuropathy, intracranial pressure increased, (children) insomnia, (children) paresthesia

Psychiatric disorders

personality disorders

Renal and urinary disorders

urinary incontinence, haematuria, polyuria, urine frequency/pollakiuria, urine abnormality

Reproductive system and breast disorders

genital discharge, gynecomastia

Skin and subcutaneous tissue disorders

lipodystrophy, skin atrophy, dermatitis exfoliative, urticaria, hirsutism, skin hypertrophy

Pancreatitis has been reported post-marketing during GH therapy (frequency unknown).

Antibodies anti-somatropin: the protein somatropin may give rise to the formation of antibodies. Depending on the concerned product, these antibodies have been identified in a definite percentage of the treated population. Their binding capacity and their titres are generally low with no clinical consequence. However, testing for antibodies to somatropin should be performed in case of absence of response to somatropin therapy.

Leukaemia: cases of leukaemia (very rare) have been reported in children with a GH deficiency, some of them being treated with somatropin and included in the post-marketing experience. However, there is no evidence of an increased risk of leukaemia without predisposition factors.

Slipped capital femoral epiphysis and Legg-Calve-Perthes disease have been reported in children treated with GH. Slipped capital femoral epiphysis occurs more frequently in case of endocrine disorders and Legg-Calve-Perthes is more frequent in case of short stature. But, it is unknown if these 2 pathologies are more frequent or not while treated with somatropin. A discomfort, a pain in the hip and/or the knee must evocate their diagnosis.

Other adverse drug reactions may be considered as class effect, as the hyperglycaemia due to the decrease in insulin-sensitivity, the decreased of free thyroxin level and the possible development of a benign intra-cranial hypertension.

Reporting of suspected adverse reactions

Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the Yellow Card Scheme, website: www.mhra.gov.uk/yellowcard.

4.9. Overdose

The recommended dose of Zomacton should not be exceeded.

Although there have been no reports of overdosage with Zomacton, acute overdosage may result in an initial hypoglycaemia followed by a subsequent hyperglycaemia.

The effects of long-term, repeated use of Zomacton in doses exceeding those recommended, are unknown. However, it is possible that such use might produce signs and symptoms consistent with the known effects of excess human growth hormone (e.g. acromegaly).

🇷🇴 Known in Romania as

Medicines sold in Romania with the same active substance: Cunoscut în România ca

  • SAIZEN 8 mg/ml prescriptionSOMATROPINUM · injection / infusion
  • GENOTROPIN 16 UI/ml (5,3 mg/ml) prescriptionSOMATROPINUM · injection / infusion
  • SAIZEN 5,83 mg/ml prescriptionSOMATROPINUM · injection / infusion
  • NORDITROPIN FLEXPRO 10 mg/1,5 ml prescriptionSOMATROPINUM · injection / infusion
  • ZOMACTON 4 mg (12 UI) prescriptionSOMATROPINUM · injection / infusion
  • OMNITROPE 1,3mg/ml prescriptionSOMATROPINUM · injection / infusion

Same active substance. The strength, the form and whether you need a prescription can differ. Always ask a pharmacist before you switch. Romanian medicines in the UK →

🇵🇱 Known in Poland as

Medicines sold in Poland with the same active substance: W Polsce znany jako

  • Genotropin 5,3Somatropinum · injection / infusion
  • Genotropin 12Somatropinum · injection / infusion
  • NutropinAqSomatropinum · injection / infusion
  • Norditropin SimpleXxSomatropinum · injection / infusion
  • OmnitropeSomatropinum · injection / infusion
  • Norditropin NordiFlexSomatropinum · injection / infusion

Same active substance. The strength, the form and whether you need a prescription can differ. Always ask a pharmacist before you switch. Polish medicines in the UK →

💬 Ask about this leaflet

Ask anything about Zomacton 4mg Injection. The assistant answers only from this leaflet — if the leaflet does not cover it, it will say so. It does not give medical advice.

Answers come from the patient leaflet published on the electronic medicines compendium (emc). They are not medical advice. Ask a pharmacist or your GP if you are unsure. For urgent help call NHS 111, or 999 in an emergency.

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