Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.
Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.
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 Tranexamic acid may still be available. Do not stop your treatment — ask your pharmacist or GP what to use instead.
for Cyklokapron contains tranexamic acid which belongs to a group of medicines called antihaemorragics; antifibrinolytics, amino acids. Cyklokapron is used in adults and children above one year of age for the prevention and treatment of bleeding due to a process that inhibits blood clotting called fibrinolysis. Specific indications include:
Cyklokapron Do not take Cyklokapron:
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Warnings and precautions This medicine is ONLY to be given to you through a vein either by intravenous infusion (IV) or intravenous injection (IV push). This medicine must not be given into the spine, epidurally (around the spinal cord) or into the brain. Serious harms have been reported when this medicine was given into the spine (intrathecal use). If you notice any pain in your back or legs during, or soon after this medicine is given, tell your doctor or nurse immediately. Tell your doctor if any of these apply to you to help him or her decide if Cyklokapron is suitable for you:
Cyklokapron Your doctor, nurse or other healthcare provider will give you Cyklokapron through a slow injection or infusion into one of your veins. Do not inject Cyklokapron yourself. Your doctor will decide the correct dose for you and how long you should take it. You should continue to receive Cyklokapron for as long as instructed by your doctor.
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Consult with your healthcare provider if you have any questions regarding Cyklokapron. Use in children If Cyklokapron is given to a child from one year, the dose will be based on the child's weight. Your doctor will decide the correct dose for the child and how long he/she should take it. Use in elderly No reduction in dosage is necessary unless there is evidence of renal failure. Use in patients with kidney problem If you have a kidney problem, your dose of tranexamic acid will be reduced according to a test performed on your blood (serum creatinine level). Use in patients with hepatic impairment No reduction in dosage is necessary. Method of administration Cyklokapron should only be administered slowly into a vein. Cyklokapron must not be injected into a muscle or into the spine. If you are given more Cyklokapron than the recommended dose If you are given more Cyklokapron than the recommended dose you may experience a transitory blood pressure lowering. Talk to a doctor or pharmacist immediately. 4. Possible side effects Like all medicines, this medicine can cause side effects, although not everybody gets them. Side effects reported with Cyklokapron are: The following side effects have been observed with Cyklokapron: Common (may affect up to 1 in 10 people)
not listed in this leaflet. You can also report side effects directly via Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects you can help provide more information on the safety of this medicine.
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Cyklokapron Keep this medicine out of the sight and reach of children. Do not use this medicine after the expiry date which is stated on the carton and ampoule label after EXP. The expiry date refers to the last day of that month. Do not freeze. 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.
What Cyklokapron contains The active substance in Cyklokapron 100 mg/mL solution for injection/infusion is tranexamic acid. The other ingredient is water for injections. What Cyklokapron looks like and contents of the pack Cyklokapron 100 mg/mL solution for injection/infusion: Type I glass ampoule containing a clear, colourless solution. Packs with 5 or 10 Type I glass 5 mL ampoules, each ampoule in an outer carton containing 500 mg tranexamic acid. Not all pack sizes may be marketed. Marketing Authorisation Holder Pfizer Limited Ramsgate Road Sandwich, Kent CT13 9NJ UK Manufacturer Pfizer Manufacturing Belgium NV Rijksweg 12 B-2870 Puurs-Sint-Amands Belgium Company contact address: For further information on your medicine contact Medical Information at the following address: Pfizer Limited, Walton Oaks, Dorking Road, Tadworth, Surrey, KT20 7NS Telephone 01304 616161 This medicine is authorised in the Member States of the European Economic Area and in the United Kingdom (Northern Ireland) under the following names: Austria, Belgium, Germany, Ireland, Netherlands, Norway, Sweden, United Kingdom (Northern Ireland): Cyklokapron Denmark, Iceland: Tranexamsyre Pfizer United Kingdom (Northern Ireland): Tranexamic acid Pfizer
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This leaflet was last revised in 08/2025. Ref: CK 13_2
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Cyklokapron 100 mg/mL solution for injection/infusion comes as injection containing 100mg/ml. Always follow the dose your doctor or pharmacist has given you, and read the leaflet that comes with the medicine.
The active substance in Cyklokapron 100 mg/mL solution for injection/infusion is tranexamic acid.
Medicines with the same active substance, strength and form include: Tranexamic Acid 100 mg/ml Solution for Injection. They are interchangeable only if your prescriber or pharmacist says so.
This leaflet reproduces the patient information leaflet approved for Cyklokapron 100 mg/mL solution for injection/infusion, as published on the electronic medicines compendium (emc). The version printed inside your medicine’s packaging is the one that applies to you.
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.
The text above reproduces the patient information leaflet approved for this medicine, restructured for easier reading.
Tranexamic acid is indicated in adults and children from one year in prevention and treatment of haemorrhages due to general or local fibrinolysis.
Specific indications include:
- Haemorrhage caused by general or local fibrinolysis such as:
- Menorrhagia and metrorrhagia,
- Gastrointestinal bleeding,
- Haemorrhagic urinary disorders, further to prostate surgery or surgical procedures affecting the urinary tract,
- Ear Nose Throat surgery (adenoidectomy, tonsillectomy, dental extractions),
- Gynaecological surgery or disorders of obstetric origin,
- Thoracic and abdominal surgery and other major surgical intervention such as cardiovascular surgery,
- Management of haemorrhage due to the administration of a fibrinolytic agent.
Posology
Adults
Unless otherwise prescribed, the following doses are recommended:
1. Standard treatment of local fibrinolysis:
0.5 g (1 ampoule of 5 mL) to 1 g (1 ampoule of 10 mL or 2 ampoules of 5 mL) tranexamic acid by slow intravenous injection or infusion (= 1 mL/minute) two to three times daily
2. Standard treatment of general fibrinolysis:
1 g (1 ampoule of 10 mL or 2 ampoules of 5 mL) tranexamic acid by slow intravenous injection or infusion (= 1 mL/minute) every 6 to 8 hours, equivalent to 15 mg/kg body weight (BW)
Renal impairment
For patients with renal impairment, the dosage of tranexamic acid should be reduced according to the serum creatinine level:
Serum creatinine
micromol/L
Serum creatinine
mg/dL
Dose IV
Administration
120 to 249
1.35 to 2.82
10 mg/kg BW
Every 12 hours
250 to 500
2.82 to 5.65
10 mg/kg BW
Every 24 hours
> 500
> 5.65
5 mg/kg BW
Every 24 hours
Hepatic impairment
No dose adjustment is required in patient with hepatic impairment.
Paediatric population
In children from 1 year, for current approved indications as described in section 4.1, the dosage is in the region of 20 mg/kg/day. However, data on efficacy, posology and safety for these indications are limited.
The efficacy, posology and safety of tranexamic acid in children undergoing cardiac surgery have not been fully established. Currently available data are limited and are described in section 5.1.
Elderly
No reduction in dosage is necessary unless there is evidence of renal failure.
Method of administration
The administration is strictly limited to slow intravenous injection or infusion (see section 6.6) of maximum 1 mL per minute.
TRANEXAMIC ACID SHOULD ONLY BE ADMINISTERED INTRAVENOUSLY and should not be administered intrathecally or epidural (see sections 4.3 and 4.4).
IN ORDER TO REDUCE THE RISK OF FATAL MEDICATION ERRORS DUE TO INCORRECT ROUTE OF ADMINISTRATION OF TRANEXAMIC ACID, IT IS STRONGLY RECOMMENDED TO LABEL THE SYRINGES CONTAINING TRANEXAMIC ACID (see sections 4.3, 4.4 and 6.6).
Hypersensitivity to the active substance or to any of the excipients listed in section 6.1.
Acute venous or arterial thrombosis (see section 4.4).
Fibrinolytic conditions following consumption coagulopathy except in those with predominant activation of the fibrinolytic system with acute severe bleeding (see section 4.4).
History of convulsions.
Intrathecal, epidural, intraventricular injection and intracerebral application (risk of cerebral oedema and convulsions and death).
The indications and method of administration indicated above should be followed strictly:
• Intravenous injections or infusions should be given very slowly (max. 1 mL per minute)
• Tranexamic acid must not be administered by the intramuscular route
Risk of medication errors due to incorrect route of administration
Cyklokapron is for intravenous use only. Intrathecal, epidural, intraventricular and intracerebral use of Cyklokapron is contraindicated (see section 4.3). Serious adverse reactions including fatal events have been reported when tranexamic acid was inadvertently administered intrathecally. These events have included severe back, gluteal and lower limb pain, myoclonus and generalised seizures, and cardiac arrhythmias.
Care should be exercised to ensure the correct route of administration of Cyklokapron. Healthcare professionals should be aware of the potential for confusion of Cyklokapron with other injectables which could result in inadvertent intrathecal administration of Cyklokapron. This includes in particular intrathecally administered injectables that may be used during the same procedure as tranexamic acid.
Syringes containing Cyklokapron should be clearly labelled with the intravenous route of administration.
Convulsions
Cases of convulsions have been reported in association with tranexamic acid treatment. In coronary artery bypass graft (CABG) surgery, most of these cases were reported following intravenous (IV.) injection of tranexamic acid in high doses. With the use of the recommended lower doses of tranexamic acid, the incidence of post-operative seizures was the same as that in untreated patients.
Visual disturbances
Attention should be paid to possible visual disturbances including visual impairment, vision blurred, impaired colour vision and if necessary, the treatment should be discontinued. With continuous long-term use of tranexamic acid, regular ophthalmologic examinations (eye examinations including visual acuity, colour vision, fundus, visual field etc.) are indicated. With pathological ophthalmic changes, particularly with diseases of the retina, the physician must decide after consulting a specialist on the necessity for the long-term use of tranexamic acid in each individual case.
Haematuria
In case of haematuria from the upper urinary tract, there is a risk for urinary obstruction at the lower levels of the tract.
If left untreated, urinary obstruction may lead to serious consequences such as renal insufficiency, urinary tract infection, hydronephrosis, and anuria. Therefore, close monitoring is recommended for those patients with haematuria or risk of haematuria from the upper urinary tract.
Thromboembolic events
Before use of tranexamic acid, risk factors of thromboembolic disease should be considered. In patients with a history of thromboembolic diseases or in those with increased incidence of thromboembolic events in their family history (patients with a high risk of thrombophilia), tranexamic acid should only be administered if there is a strong medical indication after consulting a physician experienced in haemostaseology and under strict medical supervision (see section 4.3).
Tranexamic acid should be administered with care in patients using hormonal contraception because of the increased risk of thrombosis (see section 4.5).
Disseminated intravascular coagulation
Patients with disseminated intravascular coagulation (DIC) should in most cases not be treated with tranexamic acid (see section 4.3). If tranexamic acid is given it must be restricted to those in whom there is predominant activation of the fibrinolytic system with acute severe bleeding. Characteristically, the haematological profile approximates to the following: reduced euglobulin clot lysis time; prolonged prothrombin time; reduced plasma levels of fibrinogen, factors V and VIII, plasminogen fibrinolysin and alpha-2 macroglobulin; normal plasma levels of P and P complex; i.e. factors II (prothrombin), VIII and X; increased plasma levels of fibrinogen degradation products; a normal platelet count. The foregoing presumes that the underlying disease state does not of itself modify the various elements in this profile. In such acute cases a single dose of 1 g tranexamic acid is frequently sufficient to control bleeding. Administration of tranexamic acid in DIC should be considered only when appropriate haematological laboratory facilities and expertise are available.
No interaction studies have been performed. Simultaneous treatment with anticoagulants must take place under the strict supervision of a physician experienced in this field. Medicinal products that act on haemostasis should be given with caution to patients treated with tranexamic acid. There is a risk of increased thrombus-formation potential during concomitant use with hormonal contraception. Alternatively, the antifibrinolytic action of the drug may be antagonised with thrombolytic drugs.
Women of childbearing potential
Women of childbearing potential have to use effective contraception during treatment (see sections 4.4 and 4.5).
Pregnancy
Available data from published studies, case series and case reports with tranexamic acid use in pregnant women in the second and third trimester and at the time of delivery have not clarified whether there is a drug-associated risk of miscarriage or adverse maternal or foetal outcomes. There are cases of foetal structural abnormalities that resulted in death of the newborn following administration of tranexamic acid to the mother during conception or the first trimester of pregnancy; however, due to other confounding factors the risk of major birth defects with use of tranexamic acid during pregnancy is not clear.
Animal studies do not indicate direct or indirect harmful effects with respect to reproductive toxicity (see section 5.3).
Tranexamic acid passes through the placenta. The concentration in cord blood after an intravenous injection of 10 mg/kg to pregnant women is about 30 mg/L, as high as in the maternal blood.
There were 13 clinical studies that described foetal and/or neonatal functional issues such as low Apgar score, neonatal sepsis, cephalohematoma and 9 clinical studies that discussed alterations to growth including low birth weight and preterm birth at 22‑36 weeks of gestation in foetuses and infants exposed to tranexamic acid in‑utero.
For decisions regarding the use of tranexamic acid during pregnancy, the potential risk of tranexamic acid administration on the foetus should always be considered along with the mother's clinical need for tranexamic acid; an accurate risk-benefit evaluation should drive the treating physician's decision.
Breast-feeding
Published literature reports the presence of tranexamic acid in human milk. There are limited data on the effects of tranexamic acid on the breast-fed child or the effects on milk production. The developmental and health benefits of breast-feeding should be considered along with the mother's clinical need for tranexamic acid and any potential adverse effects on the breast-fed child from tranexamic acid or from the underlying maternal condition.
Due to limited data, no final assessment can be established on the use of tranexamic acid during breast‑feeding.
Fertility
There are no clinical data on the effects of tranexamic acid on fertility. In animal studies, tranexamic acid did not affect male or female fertility at clinically relevant doses (see section 5.3).
No studies have been performed on the ability to drive and use machines.
The ADRs reported from clinical studies and post-marketing experience are listed below according to system organ class.
Tabulated list of adverse reactions
Adverse reactions reported are presented in table below. Adverse reactions are listed according to MedDRA primary system organ class. Within each system organ class, adverse reactions are ranked by frequency. Within each frequency grouping, adverse reactions are presented in the order of decreasing seriousness.
System organ class
Common
≥ 1/100 to < 1/10
Uncommon
≥ 1/1,000 to < 1/100
Frequency not known
(cannot be estimated from the available data)
Immune system disorders
- Hypersensitivity reactions including anaphylaxis
Nervous system disorders
- Convulsions particularly in case of misuse (see sections 4.3 and 4.4)
Eye disorders
- Visual disturbances including impaired colour vision
Vascular disorders
- Malaise with hypotension, with or without loss of consciousness (generally following a too fast intravenous injection, exceptionally after oral administration)
- Arterial or venous thrombosis at any sites
Gastrointestinal disorders
- Diarrhoea
- Vomiting
- Nausea
Skin and subcutaneous tissue disorders
- Dermatitis allergic
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 at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.
No case of overdose has been reported.
Signs and symptoms may include dizziness, headache, hypotension, and convulsions. It has been shown that convulsions tend to occur at higher frequency with increasing dose.
Management of overdose should be supportive.
Ask anything about Cyklokapron 100 mg/mL solution for injection/infusion. 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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