Can you take antihistamines if you have high blood pressure?

Antihistamines are the most common medication for allergies. Most of them seem to be safe if you have high blood pressure -- but again, ask to make sure. Don't take decongestants unless your doctor tells you otherwise. They may raise your blood pressure.
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What antihistamines are safe for high blood pressure?

What Allergy Medicines Can I Take if I Have High Blood Pressure?
  • Allegra (fexofenadine)
  • Clarinex (desloratadine)
  • Claritin (loratadine)
  • Xyzal (levocetirizine)
  • Zyrtec (cetirizine)
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Can you take antihistamines while on blood pressure tablets?

While most antihistamines are generally safe to take with your blood pressure medication, we want you to keep in mind the following drug interactions if you are taking medicines for your blood pressure: Fexofenadine (Allegra) and Carvedilol (Coreg): This may increase the side effects of fexofenadine.
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Does antihistamine raise or lower blood pressure?

Official answer. Increased blood pressure is not a typical side effect of diphenhydramine, a first-generation antihistamine that lowers the effects of histamines in your body. However, in rare cases, the drug may cause hypotension, or decreased blood pressure.
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Can you take Claritin D if you have high blood pressure?

Claritin D should not be used by patients with severe high blood pressure (hypertension), glaucoma or severe coronary artery disease without physician supervision.
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Can you take Loratadine with High Blood Pressure



Who should not take antihistamines?

Who shouldn't take antihistamines?
  • Glaucoma.
  • Trouble urinating (from an enlarged prostate gland)
  • Breathing problems, such as asthma, emphysema, or chronic bronchitis.
  • Thyroid disease.
  • Heart disease.
  • High blood pressure.
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What should you not take with blood pressure medicine?

Topic Overview
  • Decongestants, such as those that contain pseudoephedrine.
  • Pain medicines (NSAIDs), such as ibuprofen and naproxen.
  • Cold and influenza medicines. These often contain decongestants and NSAIDs.
  • Some antacids and other stomach medicines. ...
  • Some natural health products.
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What can I take to sleep if I have high blood pressure?

The natural sleep aids
  • Melatonin supplements. Melatonin is a sleep hormone that your body produces naturally, signaling the brain that it is time to go to bed. ...
  • Valerian root. ...
  • Magnesium. ...
  • Lavender plant. ...
  • Diphenhydramine: ...
  • Doxylamine succinate: ...
  • Cyclizine:
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Why do antihistamines cause heart palpitations?

A decongestant eases congestion by constricting the blood vessels in your nasal passages. This dries up nasal mucus. But these medications can also abnormally stimulate the heart and blood vessels throughout the body. “This can cause an increase in blood pressure and heart rate, or skipped beats.
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Do antihistamines raise heart rate?

The first generation H1-antihistamines are well-known antiallergy medications. They may occasionally cause an increase in the pulse rate because they have an atropine-like effect. In some individuals, the heart rate may become rapid.
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Can you take allergy with blood pressure medicine?

For allergy sufferers with heart disease, medicines such as Allegra, Zyrtec or Claritin should be safe. However, medicines containing decongestants — including Allegra-D, Zyrtec-D and Claritin-D — could increase your blood pressure and heart rate or interfere with your heart medication.
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Which antihistamine is best for itching?

A nonprescription oral antihistamine, such as loratadine (Alavert, Claritin, others), cetirizine (Zyrtec Allergy, others) or diphenhydramine (Benadryl Allergy, others), may help relieve itching.
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Do allergies raise blood pressure?

In general, allergies do not directly increase blood pressure. However, if you take certain medications for your allergies, they may affect your blood pressure; thus, your allergies can indirectly affect your blood pressure.
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How does histamine affect blood pressure?

Histamine stimulates many smooth muscles to contract, such as those in the gastrointestinal tract, the uterus, and the bronchi. In some smooth muscle, however, it causes relaxation, notably that of fine blood vessels, whose dilation may produce a pronounced fall in blood pressure.
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Does Benadryl raise blood pressure?

Benadryl may cause a drop in blood pressure which may cause symptoms such as dizziness and increase your risk of falls.
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Can high blood pressure cause stuffy nose?

French researchers report a link between hypertension and rhinitis, a chronic inflammation of the mucous membrane of the nose that often results from hay fever and other allergic reactions and viral infections like the common cold.
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Can I take antihistamine with heart problems?

Antihistamines, which are commonly used to treat symptoms such as a runny nose or sneezing, are generally safe for patients with abnormal heart conditions.
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What are the side effects of antihistamines?

Side effects of antihistamines

sleepiness (drowsiness) and reduced co-ordination, reaction speed and judgement – do not drive or use machinery after taking these antihistamines. dry mouth. blurred vision. difficulty peeing.
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How do you calm a racing heart at night?

If your heart is racing at night, you should: Breathe deeply: Try pursed lip breathing techniques, which involve long, deep breaths. You can also meditate and try other relaxation techniques to reduce stress. Drink a glass of water: If you're dehydrated, your heart has to work harder to pump blood.
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Can drinking lots of water lower blood pressure?

Something as simple as keeping yourself hydrated by drinking six to eight glasses of water every day improves blood pressure. Water makes up 73% of the human heart,¹ so no other liquid is better at controlling blood pressure.
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When is blood pressure high enough to go to the hospital?

High blood pressure, caused by lifestyle issues like obesity and not getting enough exercise, among other causes, is a serious disease. If it gets too high, specifically 180/120 or higher, and you have the symptoms listed here, you need to call 911 or go to the emergency room.
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What can you do at home for high blood pressure immediately?

  1. Increase activity and exercise more. ...
  2. Lose weight if you're overweight. ...
  3. Cut back on sugar and refined carbohydrates. ...
  4. Eat more potassium and less sodium. ...
  5. Eat less processed food. ...
  6. Stop smoking. ...
  7. Reduce excess stress. ...
  8. Try meditation or yoga.
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Are antihistamines blood thinners?

During an allergic reaction, histamines bind to receptors along the blood vessels, making them expand and become more permeable so white blood cells can attack the pathogen. Antihistamines block this mechanism, in effect narrowing the blood vessels.
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Do bananas affect blood pressure medication?

But you could end up with too much potassium if you eat a bunch of bananas while taking an angiotensin converting enzyme (ACE) inhibitor, like lisinopril or captopril. These medications can cause the body to retain excess potassium that would otherwise be flushed out by the kidneys.
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Which fruit is good for high blood pressure?

Citrus fruits, including grapefruit, oranges, and lemons, may have powerful blood-pressure-lowering effects. They're loaded with vitamins, minerals, and plant compounds that may help keep your heart healthy by reducing heart disease risk factors like high blood pressure ( 4 ).
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