High blood pressure and factors such as high cholesterol, obesity and smoking contribute to cardiovascular disease. In the United States, someone experiences a coronary event every 25 seconds and someone suffers a stroke every 40 seconds, according to the 2011 heart disease and stroke statistics published by "Circulation," a publication of the American Heart Association. It could prove dangerous to self-treat high blood pressure with vitamin B complex.
B Vitamins
The B vitamins, found in a variety of foods, provide important health benefits, including promoting healthy digestion and improving liver and nervous system function. Individual B vitamins, as prescribed by your doctor, may treat conditions such as high cholesterol, type 1 diabetes and eye disease. If you take over-the-counter vitamin B complex, containing a half dozen or more B vitamins, the effects may prove contradictory. One B vitamin, for instance, might raise your blood pressure, while another could lower it.
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Vitamin B-3

Vitamin B-5
Vitamin B-5, another B vitamin commonly found in B complex supplements, may raise your blood pressure. If you take a B complex supplement that contains both B-3 and B-5 -- niacin and pantothenic acid -- they may cancel each other out in terms of effectiveness in treating blood pressure problems. If you have hemophilia, a blood clotting disorder, do not take B complex supplements that contain vitamin B-5 -- it could make it harder to control bleeding.
Considerations
You should see a doctor about the best way to treat high blood pressure. You may need to take a prescription medication rather than an over-the-counter remedy such as vitamin B complex. If you want to try safe home remedies, reduce the sodium and increase the potassium in your diet. This means consuming fewer processed foods and replacing salt with other spices in cooking, as well as adding potassium-rich foods such as sweet potatoes, bananas, spinach and raisins to your diet.
References
- University of Maryland Medical Center; Vitamin B-3 (Niacin); June 18, 2009
- "Circulation"; Heart Disease and Stroke Statistics -- 2011 Update; Veronique L. Roger, M.D., et al.; December 2010
- Medline Plus; Thiamine (Vitamin B-1); May 9, 2011
- Medline Plus; Riboflavin (Vitamin B-2); Nov. 19, 2010
- Medline Plus; Pantothenic Acid (Vitamin B-5); Nov. 19, 2010
- National Institutes of Health Office of Dietary Supplements: Vitamin B-6