Let's learn about Allopurinol Injection in simple terms.

Are you or someone in your family receiving chemotherapy for cancer? Then you've probably heard about the fact that uric acid levels in the body increase. This can happen during chemotherapy. So today we're going to talk about a special injection that doctors use to control this increase in uric acid levels and prevent the damage it can cause. That's the Allopurinol injection.

Simply put, what is Allopurinol?

Allopurinol is a medication. It is available in pill form and as an injection into a vein. The medication we are talking about today is mainly used to prevent and treat a sudden increase in uric acid levels in the body of someone receiving cancer treatment, especially chemotherapy.

Now you may be wondering, "Why does uric acid increase during chemotherapy?" Think about it this way. Chemotherapy drugs kill rapidly dividing cancer cells. When a large number of cancer cells are killed at once, the substances inside those cells accumulate in the blood. A byproduct of these substances is uric acid.

Normally, our kidneys filter this uric acid and excrete it in the urine. But when a lot of uric acid builds up suddenly, like during chemotherapy, the kidneys can't get rid of it all. Then the uric acid level in the blood rises dangerously.

So, what the Allopurinol injection does is reduce the production of uric acid in the body. This reduces the burden on the kidneys and prevents the damage caused by uric acid.

Things your doctor needs to know before giving you this medicine

This is very important. Your doctor will want to know your complete health history before starting this treatment. Be sure to tell them about any of the following conditions, especially:

• Kidney disease: It is important to tell your doctor if you have any pre-existing kidney disease or condition. Because uric acid is removed from the body by the kidneys, the dose may need to be adjusted or special care may be needed when giving this medicine to someone with kidney disease.
• Liver disease: If you have any liver disease, tell your doctor about it.
• Allergies to allopurinol or other substances: Have you ever had an allergic reaction to allopurinol? Or if you have any other allergies to any medicine, food, dyes, or preservatives.
• If you are pregnant or trying to get pregnant: If you are pregnant or planning to become pregnant in the near future, it is very important to tell your doctor.
• If you are a breastfeeding mother (Breastfeeding): If you are breastfeeding a child, be sure to inform the doctor about it as well.

Based on this information, the medical team will decide whether or not to give you this treatment, or how to give it.

How is the medicine given and what to do if you take too much?

Allopurinol is given into a vein . This is not something you can do at home. You will be admitted to a hospital or clinic and given the injection by a doctor or trained nursing staff. Therefore, there is no risk of missing a dose.

Special care may be required when giving this medicine to young children. Your doctor will inform you about this.

What if you take too much medicine? (Overdosage)

This is very unlikely to happen in a hospital setting. However, if you think you have taken too much of this medicine, inform your medical team immediately. As is the case with any other medicine overdose, in our country you can call the National Poisons Information Centre at the Colombo National Hospital . Or go to the nearest hospital Emergency Treatment Unit (ETU) immediately.

Other medications that may interact with this medicine (Drug Interactions)

It is very important to tell your doctor about all the medicines you are taking. Some medicines can interact with allopurinol, either changing the effects of allopurinol or increasing side effects.

Let's explain this further with the table below.

Things to keep in mind when taking this medicine

The medical team will monitor you closely while you receive this vaccine, but it is very important for you to be aware of these facts.

Serious Skin Reactions

This is the most important thing to watch out for. Some people using this medicine may develop serious skin reactions. The most dangerous thing is that this can happen weeks or months after starting the medicine. If you have any of these symptoms, tell your doctor or nurse immediately:

• Fever or a rash with fever.
• These lesions turn red or purple, then blister or peel.
• Red rash with swelling of the face and lips.
• Swollen lymph nodes in the neck or armpits.

Dizziness and drowsiness

This medicine may affect your balance and reaction time. Therefore, avoid driving, working at heights, or operating machinery that requires alertness until you know exactly how this medicine affects you.

To reduce the risk of dizziness or fainting, stand up straight when getting up from a sitting position or out of bed. Avoid drinking alcohol while taking this medication as it can increase these side effects.

Drink plenty of water.

This is a very important tip. Your doctor will advise you to drink plenty of water during the day while taking this medicine. The reason for this is that drinking more water helps the kidneys to filter out the uric acid in the body more easily and excrete it in the urine. This can reduce the risk of gout and kidney stones.

Side effects

Like any medicine, Allopurinol can cause side effects. Some are serious and should be reported immediately. Some are common and should only be reported if they persist.

This list does not include all possible side effects. If you notice anything unusual or unusual in addition to these, please tell your medical team.