Midodrine works by constricting (narrowing) the blood vessels and increasing blood pressure.
Midodrine is used to treat low blood pressure (hypotension) that causes severe dizziness or a light-headed feeling, like you might pass out.  midodrine is for use only when low blood pressure affects daily life. Midodrine may not improve your ability to perform daily activities.
Midodrine may also be used for purposes not listed in this medication guide.
