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.
An adjustable-rate mortgage, commonly referred to as an ARM, may start off with a fixed rate for a specified amount of time (one to five years is common) but will then adjust to the market index and continue to adjust on a regular scheduleâeither up or down.