Hoppa till huvudinnehåll

Phytomenadioninjektion

Konakion MM

Phytomenadione is a man-made form of vitamin K.

It is used to treat people who are at risk of bleeding because of taking anticoagulant medicines.

About phytomenadione

Typ av medicin

A form of vitamin K; an antihaemorrhagic

Används för

To prevent bleeding caused by anticoagulant medicines; to reverse the anticoagulant effects of warfarin before an operation

Även kallad

Phytonadione (in US); Konakion® MM

Tillgänglig som

Injection for intravenous or oral use

Vitamin K is a fat-soluble vitamin which is essential for blood clotting. It also plays a role in bone health.

People who take anticoagulant medicines såsom warfarin are at risk of bleeding. Regular blood tests are needed to check on how quickly the blood clots. The aim is to get the dose of warfarin just right so that the blood does not clot as easily as normal, but not so much as to cause bleeding problems. If the dose of the anticoagulant is too high then bleeding can become a problem. Phytomenadione is given as an antidote to bleeding caused by anticoagulant medicines such as warfarin. It is likely to be given by injection in hospital.

If a person who is taking a medicine like warfarin needs to have an operation at short notice then the effects of the anticoagulant medicine will need to be reversed before the surgery takes place. Vitamin K is given to reduce the risk of bleeding during the surgery.

Vitamin K is given to newborn babies soon after birth to prevent possible bleeding problems. It is usually given as an injection but the liquid medicine can also be swallowed. If you have been asked to give the medicine by mouth, your doctor or midwife will give you instructions on how much to give and when.

Before having phytomenadione

To make sure that this is the right treatment for you it is important that your doctor knows:

  • Om du är gravid eller ammar.

  • Om du tar eller använder några andra läkemedel. Detta inkluderar alla läkemedel du tar som finns att köpa utan recept, samt växtbaserade och komplementära läkemedel.

  • Om du någonsin har haft en allergisk reaktion mot en medicin.

How phytomenadione is given

  • Phytomenadione injection will be given by a doctor or nurse. Ask to read the manufacturer's printed information leaflet from inside the pack - it will give you more information about treatment with phytomenadione.

  • You may be given the injection to swallow by mouth. This is often the case for people who are taking phytomenadione before surgery, or who have abnormal blood results but who do not have any symptoms of bleeding.

  • If you have been asked to give phytomenadione to your newborn baby by mouth, follow the midwife's or doctor's instructions carefully. Read the printed manufacturer's instructions on how to use the ampoule and dropper. A dose is usually needed at 1 week old and then at 1 month old.

Få ut det mesta av din behandling

  • If you have any questions about your treatment, please ask your doctor or nurse for further advice.

  • After you have left hospital, remember to keep your regular clinic appointments so that your progress can be monitored.

Can phytomenadione cause problems?

Very occasionally there have been reports of irritation or allergic-type reactions, but otherwise the medicine is unlikely to cause side-effects. If you experience any other symptoms which you think could be due to phytomenadione, please speak with your doctor or pharmacist for further advice.

How to store phytomenadione

  • Förvara alla läkemedel utom räckhåll och synhåll för barn.

  • Förvara på en sval, torr plats, borta från direkt värme och ljus.

Viktig information om alla läkemedel

Viktig information om alla läkemedel

If you buy any medicines 'over the counter', check with a pharmacist that they are safe to take with your prescribed medicines.

Om du ska genomgå en operation eller tandbehandling, vänligen informera den som utför behandlingen om vilka mediciner du tar.

Ta aldrig mer än den föreskrivna dosen. Om du misstänker att du eller någon annan kan ha tagit en överdos av denna medicin, gå omedelbart till akutmottagningen på ditt lokala sjukhus. Ta med behållaren, även om den är tom.

Denna medicin är för dig. Ge den aldrig till andra människor även om deras tillstånd verkar vara detsamma som ditt.

Behåll inte föråldrade eller oönskade mediciner. Ta dem till ditt lokala apotek som kommer att ta hand om dem åt dig.

If you have any questions about this medicine, ask your doctor or pharmacist.

Rapportera biverkningar av ett läkemedel eller vaccin

Om du upplever biverkningar kan du rapportera dem online via Yellow Card webbplats.

Vanliga frågor

What is the difference between phytomenadione and phytonadione?

Phytomenadione and phytonadione are the same medicine. Phytonadione is simply the name used for this medicine in the US, while phytomenadione is used in other places like the UK.

Does phytomenadione interact with other medications, including herbal remedies?

Before receiving phytomenadione, it's important to inform your doctor about all other medicines you are taking. This includes any non-prescription drugs, as well as herbal and complementary medicines. This helps ensure the treatment is safe and appropriate for you.

How long does a dose of phytomenadione last or how soon does it work?

The article states that phytomenadione is given as an antidote to reverse the effects of anticoagulant medicines like warfarin, particularly before an operation. It acts to reduce the risk of bleeding. The exact duration of its effect or how quickly it starts working is not specified, but its purpose is immediate reversal or prevention of bleeding issues.

How can I get more information about my specific phytomenadione treatment?

If you have specific questions about your individual treatment with phytomenadione, it's best to ask your doctor or nurse for further advice. You can also request to read the manufacturer's printed information leaflet that comes with the medicine, as it provides more details about the treatment.

Can phytomenadione be purchased without a prescription?

The article describes phytomenadione as a medicine given by a doctor or nurse, often by injection in a hospital setting or for specific medical situations like before surgery. It is not mentioned as a medicine available for purchase over the counter.

Vidare läsning och referenser

Artikelhistorik

Informationen på denna sida är skriven och granskad av kvalificerade kliniker.
  • Next review due: 23 Dec 2027
  • 23 dec 2024 | Senaste versionen

    Senast uppdaterad av

    Michael Stewart, MRPharmS

    Granskad av

    Sid Dajani

Onlineapotek, behandlingar och hälsotjänster

Enkel tillgång till pålitliga behandlingar och hälsotjänster online.

Common conditions

Get help with common conditions through the NHS, without a GP appointment.

Book your free Pharmacy First appointment

Anmäl dig till Patientens nyhetsbrev

Din veckovisa dos av tydliga, pålitliga hälsoråd - skrivna för att hjälpa dig känna dig informerad, självsäker och i kontroll.

Vänligen ange en giltig e-postadress

Genom att prenumerera accepterar du våra Sekretesspolicy. Du kan avsluta prenumerationen när som helst. Vi säljer aldrig dina uppgifter.