Source: Health Products Regulatory Authority (ZA) Publisher: Biotech Laboratories (Pty) Ltd, Ground Floor, Block K West, Central Park, 400 16<sup>th</sup> Street, Randjespark, Midrand 1685, South Africa, Tel. nr: 011 848 3050
The indications and method of administration indicated above should be followed strictly:
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.
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 medical practitioner must decide after consulting a specialist on the necessity for the long-term use of TRANMENXIO IV in each individual case.
In case of haematuria from the upper urinary tract, there is a risk for urethral obstruction.
Before use of TRANMENXIO IV, 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 medical practitioner experienced in haemostaseology and under strict medical supervision (see section 4.3).
TRANMENXIO IV should be administered with care in patients receiving oral contraceptives because of the increased risk of thrombosis (see section 4.5).
Patients with disseminated intravascular coagulation (DIC) should in most cases not be treated with TRANMENXIO IV (see section 4.3). If TRANMENXIO IV 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 TRANMENXIO IV in DIC should be considered only when appropriate haematological laboratory facilities and expertise are available.
TRANMENXIO IV should not be administered concomitantly with Factor IX Complex Concentrates or Anti-inhibitor Coagulant Concentrates, as the risk of thrombosis may be increased.
The safety of tranexamic acid has not been established in pregnancy. Tranexamic acid passes into breast milk at a concentration of a hundredth of the corresponding serum levels. Caution should be exercised when TRANMENXIO IV is given to nursing women. For patients in renal failure, tranexamic acid as in TRANMENXIO IV should be given with caution because of the risk of accumulation.
Patients with a previous history of thromboembolic disease should not be given TRANMENXIO IV unless simultaneous treatment with anticoagulants can be given. For patients who are to receive continuous treatment with TRANMENXIO IV for longer than several days, an ophthalmological examination is advisable (including visual acuity, colour vision, eye-grounds, field of vision), before commencing treatment, and at regular intervals during treatment.
Medicines with actions on haemostasis should be given with caution to patients on antifibrinolytic therapy. The potential for thrombus formation may be increased by oestrogens, for example, or the action of the antifibrinolytic antagonised by compounds such as the thrombolytics.
No interaction studies have been performed. Simultaneous treatment with anticoagulants must take place under the strict supervision of a medical practitioner experienced in this field. Medicinal products that act on haemostasis should be given with caution to patients treated with TRANMENXIO IV. There is a theoretical risk of increased thrombus-formation potential, such as with oestrogens.
Alternatively, the antifibrinolytic action of the medicine may be antagonised with thrombolytic medicines.
Women of childbearing potential have to use effective contraception during treatment.
The safety of tranexamic acid has not been established in pregnancy.
Tranexamic acid is excreted in human milk. Therefore, breast-feeding is not recommended.
Tranexamic acid passes into breast milk at a concentration of a hundredth of the corresponding serum levels. Caution should be exercised when tranexamic acid is given to nursing women.
There are no clinical data on the effects of tranexamic acid on fertility.
No studies have been performed on the ability to drive and use machines.
TRANMENXIO IV can cause side effects, such as dizziness and vision problems, and can affect the ability to drive a vehicle and use machines. Caution is advised when driving a vehicle or operating machinery until the effects of TRANMENXIO IV are known.
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.
Cases of giddiness have been reported. Transient disturbance of colour vision may occur. Patients who experience disturbances of colour vision should be withdrawn from treatment. Rapid intravenous injection may cause dizziness and/or hypotension.
System organ class | Frequent | Less Frequent | 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) Dizziness | ||
Eye disorders | Visual disturbances including impaired colour vision Retinal/artery occlusion | ||
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 suspected adverse reactions after authorisation of the medicine is important. It allows continued monitoring of the benefit/risk balance of the medicine. Health care providers are asked to report any suspected adverse reactions to SAHPRA via the “6.04 Adverse Drug Reactions Reporting Form”, found online under SAHPRA’s publications: https://www.sahpra.org.za/Publications/Index/8
This medicinal product should not be mixed with blood for transfusion or with solutions containing penicillin.
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