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What you need to know about Hawthorn, which is said to be good for the heart

MBBS
Medically Reviewed by MBBS ✓ Medically Reviewed
📅 Updated: Jul 14, 2026 • ⏱ 6 min read • Editorial policy
What you need to know about Hawthorn, which is said to be good for the heart
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You've probably heard of various supplements that claim to help with heart health, right? Maybe a friend or relative of yours uses them. Hawthorn is one such supplement. Since it comes from a plant, many people think it's very safe and good for the heart. So let's talk about it in a little more detail today, because it's very important for your health to know exactly what you're getting into before using something like this.

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What is this Hawthorn?

Simply put, it is a supplement made from the berries, leaves, and flowers of a plant. Many people believe that it helps with heart health. Some people use it to help with conditions like high blood pressure and heart failure.

But the most important thing here is that these supplements are not rigorously tested and approved like a regular medicine that we buy from a pharmacy. For example, institutions like the FDA (Food and Drug Administration) in the United States have not exactly confirmed their quality, safety, and efficacy. This means that we cannot be 100% sure that what is on the bottle and in the exact amount it says is inside. Therefore, it is very important to think twice before using something like this.

Things you need to tell your doctor before using this

If you are considering using a supplement like this, it is essential to talk to your doctor about it. Especially if you have any of the conditions below, you should tell your doctor. This is very important for your safety.

Do you have these conditions? Why is it important to tell the doctor?
Chest pain or heart disease If you are already taking medication for heart disease, hawthorn may affect the effectiveness of those medications.
High or low blood pressure Hawthorn can lower blood pressure. If you are already taking medication, it may cause your blood pressure to drop unnecessarily.
Heartbeat irregularities People with this condition should be especially careful, as it can affect the rate or rhythm of the heartbeat.
Kidney or liver disease These organs filter and remove certain things from the body. If they are diseased, this excess can accumulate in the body and cause side effects.
Being pregnant, trying to get pregnant, or breastfeeding There is not enough data on the safety of these for pregnant and nursing mothers and the unborn child, so it is best to avoid using them during these times.
Allergies to various things Be sure to mention if you have any allergies to hawthorn, other plants, foods, or medications.

How exactly do you use this?

If you and your doctor decide to use hawthorn together, it is important to use it correctly.

  • This is usually taken orally with a glass of water .
  • The most important thing is to follow the instructions on the package, or take it exactly as your doctor tells you.
  • Some people may experience discomfort if taken on an empty stomach. If so, take with food.
  • Never take more than the recommended dose .
  • If giving this to children, you should definitely seek medical advice. They may need special care.

What to do if you take too much? (Overdose)

If you suspect you have taken too much of this , call the National Poisons Information Centre at the Colombo National Hospital without delay. Or, go to the Emergency Treatment Unit (ETU) of the nearest hospital. This is very important, so don't be shy or afraid.

Remember, this supplement is recommended for you only. What works for you may not work for someone else. So do not share it with others.

Can there be problems with other medications?

Yes, this is a very important question. Hawthorn can interact with some medications. Therefore, if you are taking any of the medications listed below, it is essential to tell your doctor.

Type of medicine Examples and what to know
Medicine for chest pain If taken with nitrate-type medications (e.g., Isosorbide, Nitroglycerin ), blood pressure can drop dangerously low.
Medications for heart rhythm disorders It can alter the effectiveness of medications such as Digoxin .
Medication for high blood pressure If you take hawthorn with any blood pressure medication you are taking, your blood pressure may drop too low.
Medications for other heart diseases Tell your doctor about any other heart medications you are taking.

This list is not complete. Therefore, give your doctor a complete list of all medications, herbs, supplements, and vitamins you take. Also tell your doctor if you smoke or drink alcohol.

What are the possible side effects?

Although most people do not experience any serious side effects, some people may experience problems. Be especially careful of allergic reactions. If you experience any of the following symptoms, stop taking hawthorn immediately and tell your doctor.

  • Skin rash, eczema, or excessive itching
  • Swelling of the face, lips, tongue, or throat (this is an emergency as it can cause difficulty breathing)

Apart from this, some people may also experience stomach aches, nausea, dizziness, or fatigue. If your symptoms do not improve or worsen, be sure to see a doctor.

Remember, just because something is 'natural' doesn't mean it's 100% safe for humans. We can't eat every plant in the forest, right? It's the same with this.

💡 Take-Home Message

  • Hawthorn is just one herbal supplement that is believed to help with heart health.
  • These are not as strictly regulated as regular medications, so there may be issues with quality and safety.
  • Be sure to talk to your doctor before using this, especially if you have conditions like heart disease or high blood pressure.
  • You should tell your doctor about any other medications you are taking, especially those for heart disease and blood pressure.
  • Don't be fooled by the word 'natural.' Always think about safety and follow medical advice.
  • If you experience signs of an allergy (facial swelling, skin rash), stop taking the medicine immediately and seek medical advice.
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⚠️ Important: Medical articles and information on Nirogi Lanka are strictly for educational and awareness purposes and do not substitute professional medical advice, diagnosis, or treatment. Always consult a qualified physician for any medical concerns.