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Does Benadryl affect blood pressure?

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Benadryl, also called Diphenhydramine, may cause low blood pressure, palpitations, and an increased heart rate. Any comments?

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Currently there are "9 comments" on this Question:

  1. Cherlyn says:

    Oct 6, 2008 I have been taking "benadryl" for 22 yrs. and basically is my allergy pill I was recently told (by an MD) that my high blood pressure could be caused by it. The sites that note increased BP from benedryl (rare side effect) do

    • Rick says:

      I was taking Benadryl for past two and a half years and I now have slight high blood pressure which was caused from benedryl. I was taking it for the antihystamine affect, my diet is very good and I exercise 6 days a week and nor was it in my family history. Recently I started getting palpatations and increased heart rate. I stopped taking benadryl completely and everything is back to normal, except for my allergies of course which Id rather deal with slight runny nose than the risk of dying from benadryl.

  2. Shela says:

    Usually I dont even read long, lengthy questions, but something in yours caught my eye.Menopause may be your problem. For sleep try magnesium about 45 min. before bed.They told me I needed a CPAP too, but I did some research and found that magnesium would help. Try it to see if it helps you to sleep. Headaches are common at this timeof life. Migraines sometimes mimic mild stroke. The blurred vision and watery eyes could alsoindicate migraine. Do you drink enough water?? Dehydration sets off some headaches. Disc problems could cause the arm tingling. I had numbness on the side of my face. Still doat times. I have arthritis in my spine too.You need to calm down. Try reading or some calming music. Keep occupied.Go talk to a therapist. It helps many. I had a very difficult menopause. I know how you feel. In my case I developed a seizure disorder. It was very frightening. I honestly didnt think I would make it.Im fine today. Dont give up. Good luck to you.

  3. Ellan says:

    Can I take benadryl with blood pressure medicine? I’m on atenelol for high blood pressure. Can I take benadryl for allergies?

  4. Ruth says:

    Benadryl contains one of several antihistamines. The antihistamine is an inhibitor of histamine. The histamine is a vasodilator produced by the body to dilate the blood vessels in the body. The antihistamine has the properties of acting as … More:http://wiki.answers.com/Q/How_benadryl_affect_blood_pressure

  5. Epifania says:

    Blood pressure is regulated by the flow of blood to and from your heart. Outside factors that can elevate your blood pressure can be stress, diet and general lifestyle. More:http://answers.ask.com/Health/Diseases/what_affects_blood_pressure

  6. Brandi says:

    Any foods high in fat, saturated fat, salt, and cholesterol can cause high blood pressure. It is best to eat healthy foods when you have been diagnosed with high blood pressure. More:http://answers.ask.com/Health/Pharmacy/what_foods_affect_blood_pressure

  7. Carline says:

    Nov 24, 2009 Find out which common drugs can raise blood pressure. Diphenhydramine ( Benadryl, Benadryl Allergy, Hydramine Cough Syrup, Excedrin

  8. Glinda says:

    Just as sodium can make the blood pressure rise, ingredients found in cold to name a few, can have an adverse affect on someone who has high blood pressure. with hypertension are Coricidin HBP, Chlo-Trimeton, Benadryl, and Tavis-1. Detail:http://www.ehow.com/about_5637690_cold-high-blood-pressure-medication.html

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