Have you or someone you know ever had a sudden, scary experience where parts of your body, especially your face, lips, tongue, and throat, suddenly swelled up and became a little swollen? This is a very uncomfortable and sometimes serious condition. In medicine, we call this angioedema . This is not like a normal allergy, but can be much different. So, in this article, we are going to talk about a specific, powerful treatment that can help control this type of angioedema.
Simply put, what is this drug called C1 Inhibitor?
Okay, the name may sound a bit complicated, but what it does is simple. C1 Inhibitor (Human) is a medication that is given to control angioedema when it is severe, that is, when there is an attack of swelling in the body. It is not given as a regular pill, but as an infusion into a vein .
There is a protein called C1 inhibitor naturally present in our blood. This is what it does to control some of the reactions that cause swelling in our body. Some people are born with a deficiency of this protein, or it doesn't work properly. That's when angioedema occurs, which is a condition in which parts of the body suddenly swell. So what this medicine does is to give the body an exogenous C1 inhibitor protein and quickly control that uncontrolled swelling process.
The important thing is that this is not a daily medication. It is only used in emergencies when angioedema is severe.
This medicine is made from human blood plasma. But don't worry, the blood taken from donors is subjected to a very strict testing process to ensure that it is free of any diseases. Therefore, the risk of transmitting infection is very low.
Things you need to tell your doctor before taking this medicine
This is very important. Before you start this treatment, it is essential that your doctor knows your complete health history. Be sure to tell him/her about any of the following, especially if you have any of the following:
| Condition or habit | Why should you inform? |
|---|---|
| If you have a history of blood clots or stroke | This medicine can sometimes slightly increase the risk of blood clots, so it is important to monitor you closely. |
| Heart disease or blood vessel disease | Special care should be taken when administering any intravenous treatment to heart patients. |
| If you have an indwelling catheter placed in a vein | The doctor should be aware that the presence of such devices may also be associated with the risk of blood clots. |
| If you are pregnant, trying to get pregnant, or are a breastfeeding mother | In these cases, you should talk to your doctor about the effects of the medication and make the best decision. |
| If you have allergies to other medications, foods, or substances | This is important to assess whether there is even a small chance of an allergy to the medication. |
How to use the medicine and special instructions
Because this medicine is given as an injection into a vein, it is usually given by trained medical staff in a hospital or clinic. However, some patients, on the advice of their doctor, are trained to give this medicine at home. If they receive such training, it is very important to prepare and inject the medicine exactly as instructed.
A point that deserves special attention!
If you develop a laryngeal attack, it is a serious condition that can cause difficulty breathing. In such a case, even if you have treated the medicine at home, you should go to the nearest hospital's Emergency Department (ETU) without delay after receiving the vaccine.
Never throw used needles and syringes in the trash. They should be placed in a special container (`sharps container`) for this purpose. If you don't have one, you can get one from your doctor or hospital.
If a young child needs this treatment, discuss it thoroughly with a pediatrician and follow their advice.
What to do if you take too much medicine?
This is an emergency medicine, so the chances of this happening are low. However, if you think you have overdosed, go to the nearest hospital Emergency Department (ETU) immediately. If necessary, you can also call the National Poisons Information Centre at the Colombo National Hospital for advice.
Side effects that may occur after taking the medicine
Like any medicine, this can cause side effects in some people. Some of them can be serious and require immediate attention.
| Serious side effects that should be reported to the doctor immediately | |
|---|---|
| 🔴 | Severe allergic reactions (hives, itching, swelling of the face, lips, tongue) |
| 🔴 | Symptoms of a stroke: Sudden numbness or weakness in the face, arm, or leg, difficulty speaking or understanding, difficulty walking, dizziness, and vision changes. |
| 🔴 | Symptoms of a Blood Clot: Difficulty breathing, chest pain, leg pain, swelling, and warmth. |
| 🔴 | Rapid heartbeat, severe headache. |
| Side effects that are usually not serious, but should be reported to the doctor if they persist | |
|---|---|
| 🟢 | Headache |
| 🟢 | Change in taste in the mouth |
This list does not include all possible side effects. If you experience anything unusual, talk to your doctor about it.
Take-Home Message
- C1 inhibitor is a specific treatment for angioedema. It is an injection given into a vein.
- It is important to tell your doctor your complete health history, especially any history of blood clots or heart disease.
- Even if you take medicine for a laryngeal attack, go to a hospital's emergency room (ETU) immediately after taking it. This is a life-saving measure.
- Be aware of serious side effects, such as signs of a stroke or blood clot. If you experience any of these, seek medical advice immediately.
- If you have any questions about this medication, don't be afraid to discuss it with your doctor.
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