Losar refers to Losartan, a blood pressure medicine of the category called Angiotensin Receptor Blockers, or ARB's.ARB's work by blocking a substance called Angiotensin from binding with receptors that usually initiate a signal telling blood vessels to constrict. Angiotensin is a messenger your body puts out to regulate your overall blood pressure. By interfering with the messenger, your arteries stay more relaxed, thus having a larger diameter.
If you have the same amount of blood going through a greater volume of vessel, then the pressure is, necessarily, less. That is how Losar works. Many doctors consider it a more benign method of affecting high blood pressure than other drugs that directly affect the heart rate, or instruct the kidneys to reduce blood volume by increasing urine production.
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