BRAND NAME(S): Cardura. USES: Doxazosin is used alone or with other drugs to treat high blood pressure (hypertension). Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems.
DEFINITION of 'ARM Index'. The benchmark interest rate to which an adjustable rate mortgage is tied. An adjustable rate mortgage's interest rate consists of an index value plus a margin. The index underlying the adjustable rate mortgage is variable, while the margin is constant. There are several popular indexes used for different types of adjustable rate mortgages. This is also referred to as the fully indexed interest rate.
With a 5/1 ARM, the interest rate does not begin changing based on the index immediately. Instead, the interest rate on a 5 year ARM is fixed for the first five years of the loan.ecause the interest rate can change after the first five years, the monthly payment may also change. A 5 year ARM, also known as a 5/1 ARM, is a hybrid mortgage. A hybrid mortgage combines features from an adjustable rate mortgage (ARM) and a fixed mortgage.