Imagine that you suddenly have hives all over your body, start itching unbearably, your eyes turn red, and you have difficulty breathing. When you have a severe allergic reaction like this, we go to the hospital right away. When we go there, a doctor may give you an injection. Most of the time, it will be a Cetirizine injection. So, today, let's talk about what this Cetirizine injection is, what it actually does to our body, and what we need to know about it.
What is this medicine called Cetirizine?
Simply put, Cetirizine is a medication that helps control allergy symptoms. Let's take a look at how it works.
When something we are allergic to, such as food, dust, or medicine, enters our body, our immune system responds to it. As part of this response, our cells release a chemical called histamine . This chemical is responsible for many of the symptoms that make you itch, itch, watery eyes, runny nose, and sometimes even shortness of breath.
So this medicine called cetirizine blocks the action of histamine. To be precise, this medicine stops histamine from binding to various parts of the body and causing those allergy symptoms. Then, gradually, those annoying symptoms decrease and you start to feel relief. In medical terms, we call these types of medicines that block histamine 'antihistamines' .
Things you need to tell your doctor before taking this medicine
Before giving you this injection, the doctor needs to know the full details of your health condition. Because that information will determine whether this medicine is suitable for you or not, and how it should be given. So, be sure to tell him about these facts.
- Kidney problems: Do you have any kidney disease? (Kidney disease) or any problems with kidney function, please tell us about it.
- Liver problems: If you have any liver disease, please inform us about it.
- Previous allergies: It is very important to know if you have had any previous allergies to cetirizine, other similar medications, any foods, dyes, or preservatives.
- Pregnancy and breastfeeding: You should also tell your doctor if you are pregnant, trying to become pregnant, or breastfeeding.
How do you use this medicine?
This is an important point to remember. Although cetirizine is available in pill form, the injection we are talking about is an injection into a vein . This means that it is not something that can be used at home like pills.
This injection is only given in a hospital or clinic by trained medical staff.
Do you give this to small children?
Doctors also recommend this medicine for children over 6 months of age in some special and severe allergic conditions. But it is done with great care and under constant supervision. Therefore, if you are giving this medicine to your child, talk to your doctor about any concerns you may have.
What to do if the dose increases (overdose)?
Since this is given in a hospital, the chances of an overdose are very low. The medical staff will give you the correct dose . But if you think you may have overdosed, there are things you should do immediately.
- Go to the Emergency Treatment Unit (ETU) immediately.
- Call the National Poisons Information Centre at the Colombo National Hospital for advice.
What other things can interact with this medicine?
There are some medications and foods that may not work properly when taken with cetirizine, or may increase side effects such as drowsiness. We call these 'drug interactions'. So be aware of the following.
- Alcohol: Taking cetirizine with alcohol can greatly increase drowsiness and dizziness.
- Medications for anxiety or sleep: Some medications that help calm the mind or induce sleep can increase drowsiness when taken with this medication.
- Strong painkillers: This medicine may also interact with some strong painkillers (Opioid medications).
- Other allergy medications: Taking medications for colds or other allergies with this medicine may increase side effects.
The most important thing is to tell your doctor about all the medications you are taking (including vitamins and traditional Ayurvedic medicines). Also, be sure to tell your doctor if you smoke or drink alcohol.
Things to be careful about when taking medicine
It's a good idea to pay a little attention to how your body feels after taking this medicine.
- Drowsiness and intoxication:Many people may feel a little dizzy or drowsy when taking this medication. It can also affect your balance and reaction time.
- Important warning: Therefore , you should definitely avoid activities that require high levels of alertness, such as driving or operating machinery, until you know exactly how you feel after taking this medication.
- Dizziness and fainting: Some people may experience dizziness and fainting. To reduce this, stand up quickly when getting up from a sitting position or out of bed.
What are the possible side effects of the medicine?
Like any medicine, cetirizine injection can cause side effects in some people. But not everyone gets them. Let's take a look at what they are and what to do if they happen.
| Side effect | Description and what to do |
|---|---|
| Serious side effects that should be reported to the doctor immediately | |
| Severe Allergic Reactions | Severe skin rash, severe itching, swelling of the face, lips, tongue or throat, difficulty breathing. These are serious emergencies. Tell your doctor or nurse immediately. |
| Common side effects that should be reported to the doctor if they persist or are bothersome | |
| Drowsiness | This is a very common side effect. Get plenty of rest. Avoid driving. |
| Headache | It usually goes away after a while. If it persists, tell your doctor. |
| Change in taste | It may be due to the effects of the medication. It usually resolves quickly. |
| Burning or numbness in the limbs | Some people may feel this way. If it persists, let your doctor know. |
If there is anything that you feel unusual about that is not mentioned on this list, don't be afraid to talk to your doctor about it.
Where do you keep the medicine?
This is not a problem for you. Because this injection is only given in a hospital, you do not have to take it home or store it. The hospital staff will take care of that.
Take-Home Message
- Cetirizine Injection is a medicine given in a hospital for severe allergic reactions.
- Before taking this medicine, be sure to tell your doctor about any kidney or liver disease you have, as well as any other medications you are taking.
- You may feel drowsy after taking the medicine. Therefore, avoid driving or doing tasks that require concentration.
- If you experience severe allergic symptoms such as swelling of the face, lips, or throat, it is an emergency. Seek medical attention immediately.
- This article is for your information only. If you have any questions about your health, it is best to talk to your doctor.
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