KONAKION MM Solution (ampoules) Ref.[7155] Active ingredients: Vitamin K1

Source: Medicines & Healthcare Products Regulatory Agency (GB)  Revision Year: 2019  Publisher: CHEPLAPHARM Arzneimittel GmbH, Ziegelhof 24, 17489 Greifswald, Germany

Contraindications

Use in patients with a known hypersensitivity to any of the constituents.

Konakion MM ampoules should not be administered intramuscularly because the i.m. route exhibits depot characteristics and continued release of vitamin K1 would lead to difficulties with the re-institution of anticoagulation therapy. Furthermore, i.m. injections given to anticoagulated subjects cause a risk of haematoma formation.

Special warnings and precautions for use

When treating patients with severely impaired liver function, it should be borne in mind that one Konakion MM Ampoule 10 mg/1ml contains 54.6mg glycocholic acid and this may have a bilirubin displacing effect. Careful monitoring of the INR is necessary after administration of Konakion MM in patients with severely impaired liver function.

At the time of use, the ampoule contents should be clear. Following incorrect storage, the contents may become turbid or present a phase separation. In this case the ampoule must no longer be used.

In potentially fatal and severe haemorrhage due to overdosage of coumarin anticoagulants, intravenous injections of Konakion MM must be administered slowly and not more than 40 mg should be given during a period of 24 hours. Konakion MM therapy should be accompanied by a more immediate effective treatment such as transfusion of whole blood or blood clotting factors. When patients with prosthetic heart valves are given transfusions for the treatment of severe or potentially fatal haemorrhage, fresh frozen plasma should be used. The use of vitamin K1 in patients with mechanical heart valves is generally to be avoided, unless there is major bleeding.

Large doses of Konakion MM (not more than 40 mg per day) should be avoided if it is intended to continue with anticoagulant therapy because there is no experience with doses above this maximum of 40 mg per day and higher doses may give rise to unexpected adverse events. Clinical studies have shown a sufficient decrease in the INR with the recommended dosage. If haemorrhage is severe, a transfusion of fresh whole blood may be necessary whilst awaiting the effect of the vitamin K1.

Vitamin K1 is not an antidote to heparin.

Interaction with other medicinal products and other forms of interaction

No significant interactions are known other than antagonism of coumarin anticoagulants.

Pregnancy and lactation

There is no specific evidence regarding the safety of Konakion MM in pregnancy but, as with most drugs, the administration during pregnancy should only occur if the benefits outweigh the risks.

Konakion is not recommended for pregnant women as prophylaxis of vitamin K deficiency bleeding in the newborn.

Effects on ability to drive and use machines

None.

Undesirable effects

There have been reports of anaphylactoid reactions after intravenous injections of Konakion MM. Very rarely, venous irritation or phlebitis has been reported in association with intravenous administration of Konakion mixed micelle solution.

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.

Incompatibilities

None.

© All content on this website, including data entry, data processing, decision support tools, "RxReasoner" logo and graphics, is the intellectual property of RxReasoner and is protected by copyright laws. Unauthorized reproduction or distribution of any part of this content without explicit written permission from RxReasoner is strictly prohibited. Any third-party content used on this site is acknowledged and utilized under fair use principles.