Does your child have a hard time staying in one place? Or does his attention change very quickly? Have you ever felt like he has a hard time staying focused on one thing, even when studying or playing? In medical terms, we call this ADHD (Attention-Deficit Hyperactivity Disorder). One special medicine that doctors recommend to control this condition is Clonidine. Especially, the Extended-Release type. So, today we will simply talk about this Clonidine pill, its function, how to use it, and the things we need to be careful about.
What exactly does this medicine called Clonidine do?
Simply put, this medication called Clonidine controls some of the brain activity in a person with ADHD. This does two main things.
1. Improves attention: Increases the ability to focus on one thing.
2. Reducing impulsive behavior: Helps control impulsive behavior.
Since this is an ``Extended-Release`` pill, the medicine is released into the body gradually and evenly throughout the day. Therefore, its effect can be maintained throughout the day. In Sri Lanka, this medicine may be available under various brand names such as Kapvay.
Things you need to tell your doctor before taking this medicine
This is very important. Before you or your child starts taking Clonidine, you should definitely tell your doctor this information. It is very important for your safety.
- If you have previously had a condition such as a brain hemorrhage .
- If you have heart disease or any problems with heart function.
- If you have high or low blood pressure .
- If you have a history of rapid or irregular heartbeat .
- If you have kidney disease .
- If you have allergies to clonidine or any other medicine, food, or dye .
- If you are pregnant or trying to get pregnant .
- If you are a breastfeeding mother .
Talking to your doctor about these things without hiding them is essential to receiving accurate and safe treatment.
How should I use the medicine?
The most important thing is to follow the doctor's instructions exactly. Generally, this medicine should be used as follows:
- Swallow the tablet whole with a glass of water.
- This is very important: Since this is an extended-release pill, never break, crush, or chew the pill. Doing so can cause the medicine to enter your body too quickly and cause side effects.
- This can be taken before or after meals, but if you experience stomach upset, it is best to take it with food.
- Try to take the medicine at the same time every day.
- Even for children over 6 years of age, this medicine can be used on the advice of a doctor. However, special care should be taken with it.
Very important: Do not stop taking this medicine suddenly, as this can cause serious side effects, such as a sudden increase in blood pressure. If you do need to stop taking the medicine, it should be done gradually by reducing the dose. Talk to your doctor and seek his advice.
What if I take too much medicine?
If you think you have taken too much medicine, don't panic. Immediately call the National Poisons Information Centre at the Colombo National Hospital . Or go to the Emergency Treatment Unit (ETU) of the nearest hospital.
What to do if you miss a dose of medication?
Do not take the missed dose as soon as you remember. Forget about it completely and take the next dose at the scheduled time. Never take two doses at the same time.
Other things that may interact with this medicine
Clonidine can interact with other medications, such as alcohol, so you should tell your doctor about all the medications you are taking (including vitamins and herbal remedies).
| Collision type | Description and examples |
|---|---|
| Never take Clonidine with these. | |
| MAOI drugs | These are a type of medication used to treat conditions such as depression. (Ex: Marplan, Nardil, Parnate). Taking Clonidine with these is very dangerous. |
| Problems can also occur with these (inform your doctor) | |
| Alcohol | Alcohol can greatly increase the drowsiness and dizziness caused by the medication. |
| Other blood pressure or heart disease medications | These can cause blood pressure or heart rate to drop unnecessarily. |
| Medication for mental illness | Medications for depression, anxiety, or other mental conditions. |
| Sleeping pills | These can cause increased drowsiness. |
| Some medications for migraines | For example, a medication like phenobarbital. |
What are the possible side effects of taking the medicine?
Like any medicine, Clonidine can cause side effects in some people. Some of these are not serious, but some require immediate attention.
| Side effect | Characteristics |
|---|---|
| Things to report to your doctor immediately | |
| Allergic reactions | Skin rash, itching, swelling of the lips, tongue, and face. |
| Low blood pressure | Dizziness, lightheadedness, blurred vision. |
| Heart palpitations | Dizziness, lightheadedness, difficulty breathing, feeling unusually tired. |
| Things to tell your doctor if they are usually not serious, but persist | |
| Drowsiness/dizziness | This is normal in the first few days of starting the medication. It may decrease as your body gets used to it. |
| Dry mouth | Drinking water and chewing sugar-free gum can help. |
| Constipation | Drink plenty of water and eat foods with fiber (fruits, vegetables). |
| Other | Fatigue, loss of appetite, sleep problems. |
How should you store your medicine?
- Keep out of reach of children and pets .
- Store at room temperature (between 20-25 degrees Celsius).
- Keep the bottle tightly closed, away from light and moisture.
- Never use or dispose of expired medication .
Take-Home Message
- Clonidine (Extended-Release) is a medication used to treat ADHD, improve attention, and reduce impulsive behavior.
- Do not break, crush, or chew this tablet. Swallow it whole.
- The most important thing is, do not stop taking the medication suddenly for any reason without your doctor's advice.
- Tell your doctor about all other medications you take and any illnesses you have.
- Be aware of drowsiness, dizziness, and low blood pressure while taking the medication. Be especially careful if you drive.
- If you take too much medication or experience severe side effects, seek medical advice immediately.


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