A balance symptom that is characterized by a condition of being dizzy or on the verge of fainting, particularly when one arises to a standing position. Lightheadedness is a predictable consequence of any medication tending to lower blood pressure. [ url:http://www2.merriam-webster.com/cgi-bin/mwmednlm?book=Medical&va=light-headedness ]
Term information
A balance symptom that is characterized by a condition of being dizzy or on the verge of fainting, particularly when one arises to a standing position. Lightheadedness is a predictable consequence of any medication tending to lower blood pressure.