Does anyone in your family, perhaps your mother, father, grandmother, grandfather, etc., use "blood thinners"? Perhaps the doctor has prescribed them to prevent a heart attack, stroke, or blood clots in the legs. These medications are very valuable and can save lives. But what happens if someone who uses them has an accident and starts bleeding heavily? Or if they have to undergo major surgery suddenly? It is in times of such life-threatening situations that this special drug that we are talking about today comes to the fore like a hero.
Simply put, what is Andexanet Alfa?
Think of it this way: a blood thinner is something that slows down the blood clotting process in our body and stops unwanted blood clots from forming. Apixaban and Rivaroxaban are two such medications that are used by many people in our country.
Now, Andexanet Alfa is an "antidote" that instantly reverses the effects of those blood thinners. To be precise, it's specifically designed to block the action of two drugs called Apixaban and Rivaroxaban.
To put it simply, think of a blood thinner as a key that prevents blood clotting. Andexanet Alfa is like a special magnet that fits that key. When this injection is given to the body, it goes and attaches to the blood thinner molecules, stopping them from working. Then our body's natural blood clotting process can start working normally again. This helps a lot in stopping uncontrolled bleeding.
This belongs to a class of drugs called `antidotes`. The common `(Common Brand Name)` of this is ANDEXXA .
In what emergencies is this medicine needed?
This is not a medicine to be used at home. This is a medicine that is only given to patients with severe, life-threatening bleeding , in a hospital, under the supervision of a specialist medical team.
This is mainly used in two situations:
1. In case of uncontrolled, life-threatening bleeding: For example, if someone taking Apixaban or Rivaroxaban has a serious accident and is bleeding excessively internally (e.g., in the brain, stomach) or externally.
2. When emergency surgery is needed: If someone taking these blood-thinning medications needs to undergo emergency surgery, this injection is used to prevent excessive bleeding during the surgery and to quickly reverse the effects of those medications.
Things your doctor should know before giving you this medicine
Even though this is an emergency medication, it is very important to inform the medical team of this information if you are conscious or if someone in your family is nearby.
- Allergies: If you have any allergies to Andexanet Alfa or any other medicine, food, dye, or preservative, you must tell us about it.
- Pregnancy: If you are pregnant or trying to get pregnant, tell her.
- Breastfeeding: If you are a breastfeeding mother, you should also inform the doctor.
Based on this information, the medical team will decide whether or not to give you this medicine and how to give it.
How do you inject this medicine into the body?
This medicine is given as an injection into a vein or as a liquid, such as saline, given into a vein . This is done by a trained doctor or nursing staff in a hospital or clinic.
The doctors and nurses will closely monitor your condition, such as your heart rate and blood pressure, throughout the entire time you are given this medicine. So there is no reason to be afraid.
What if you take too much medicine? (Overdosage)
Since this is given under medical supervision in a hospital, the chance of accidentally increasing the dose is very small. However, if you think that this has happened, inform the medical team immediately. If you need information about any medicine or poisoning, you can also call the National Poisons Information Centre at our Colombo National Hospital . However, since you are already in a hospital in this case, it is best to inform the medical team treating you.
Dangerous side effects to watch out for
Like any medicine, Andexanet Alfa can cause side effects. There is a particularly serious risk that can arise from the way this medicine works. That is the formation of new blood clots .
Remember, what we're doing with this medicine is stopping the blood from clotting. So when we do that, sometimes there's a risk of blood clotting more than necessary. So, you need to be very careful about the following symptoms. If you experience any of these, tell your doctor or nurse right away.
| Serious side effects | Symptoms you may experience |
|---|---|
| Allergic Reactions | Skin rash, itching, swelling of the face, lips, tongue or throat, difficulty breathing. |
| Blood Clot | Leg pain, swelling, or a warm feeling. Difficulty breathing, chest pain. |
| Heart Attack | Pain or tightness in the chest, shoulders, arms, or jaw. Nausea, difficulty breathing, chills, sweating, fainting. |
| Stroke | Sudden numbness or weakness of the face, arm, or leg (usually on one side of the body). Difficulty speaking, slurred speech, sudden severe headache, difficulty walking, changes in vision. |
This list does not include all possible side effects. If you experience anything unusual, please let your medical team know about it.
Are there any interactions with other medications?
Yes, it can interact with some medications. The main one that is currently known is Heparin . Heparin is another medication that prevents blood clotting.
Therefore, the best thing to do to protect your life is to give the doctor who treats you a complete list of all the medications you are taking.
- The medicine prescribed by the doctor
- Medicines to buy from the pharmacy without a prescription
- Vitamins and dietary supplements
- Sinhala medicine or other traditional medicines
It is also very important to tell the doctor if you smoke or drink alcohol.
This medicine is for you only. Never share it with anyone else. Also, since this is a hospital-issued medicine, you cannot take it home or store it.
Take-Home Message
- Andexanet Alfa is a special antidote that reverses the effects of two types of "blood thinners" called Apixaban and Rivaroxaban.
- This is only used in cases of life-threatening, uncontrollable bleeding or before emergency surgery.
- This medicine is given as an injection into a vein in a hospital, under medical supervision.
- The main and most serious risk of this medication is the possibility of new blood clots forming as the blood starts to clot again. Therefore, it is important to be aware of the symptoms of conditions such as heart attack and stroke.
- It is essential to inform your doctor about any allergies you have and all other medications you are taking.
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