orthostatic hypotension.    From Wordnet, Princeton University. 

This kind of position-related drop in blood pressure - a condition known as orthostatic hypotension - is pretty common and is usually linked to dehydration or overmedication.    From Wordnik.com.  [NYT > Home Page] Reference

Effect of sleep restriction on orthostatic cardiovascular control in humans.    From Wordnik.com.  [T.S. Wiley: Dying for a Good Night's Sleep] Reference

May cause: orthostatic hypotension, dry mouth, sedation, mental or hormonal problems.    From Wordnik.com.  [Chapter 4] Reference

It's a forum for people with postural orthostatic tachycardia syndrome, which I've had since June.    From Wordnik.com.  [Multiple System Atrophy versus Autoimmune autonomic neuropathy] Reference

Risk of extrapyramidal manifestations, orthostatic hypotension and photosensitization to the sun.    From Wordnik.com.  [Chapter 4] Reference

May cause: orthostatic hypotension, photosensitization, disturbance of electrolytes, skin allergies.    From Wordnik.com.  [Chapter 4] Reference

Increased risk of hip fracture from falling secondary to orthostatic hypotension from cyclic compounds.    From Wordnik.com.  [The Neuropsychiatric Guide to Modern Everyday Psychiatry] Reference

I had just stood up, and I thought it was orthostatic hypotension—a fall in blood pressure from standing up too fast.    From Wordnik.com.  [Dark Mirror] Reference

Dr. M: Actually, the tilt table will only prove that I have orthostatic hypotension a type of autonomic failure, is that not correct?.    From Wordnik.com.  [Archive 2008-05-01] Reference

They include postural and orthostatic hypotension at rest, blurred vision, dry mouth, constipation, paralytic ileus, and urinary retention.    From Wordnik.com.  [The Neuropsychiatric Guide to Modern Everyday Psychiatry] Reference

Neural autonomic control in orthostatic intolerance.    From Wordnik.com.  [SpaceRef Top Stories] Reference

Drug/indication: Droxidopa for orthostatic hypotension.    From Wordnik.com. Reference

History of orthostasis or orthostatic changes noted in exam.    From Wordnik.com.  [EMSResponder.com: Top EMS News] Reference

Body as a Whole: facial edema, fever, orthostatic effects, syncope.    From Wordnik.com. Reference

The hemodynamic pattern of the syndrome of delayed orthostatic hypotension.    From Wordnik.com.  [SpaceRef Top Stories] Reference

Precautions include the risk of rash, orthostatic hypotension, and seizures.    From Wordnik.com.  [BioSpace.com Featured News and Stories] Reference

Cardio-postural deconditioning: A model for post-flight orthostatic intolerance.    From Wordnik.com.  [SpaceRef Top Stories] Reference

They are oval in form and have in many cases a base course of orthostatic slabs.    From Wordnik.com.  [Rough Stone Monuments and Their Builders] Reference

Primary orthostatic tremor sometimes is treated with a combination of primidone.    From Wordnik.com.  [Citizendium, the Citizens' Compendium - Recent changes [en]] Reference

Generic beta-blockers with alpha blocking activity (more orthostatic hypotension).    From Wordnik.com.  [Citizendium, the Citizens' Compendium - Recent changes [en]] Reference

DIAGNOSTIC TESTS  Urinalysis glucosuria orthostatic proteinuria  Serum creatinine.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

FDA updates Shire's ProAmatine medicine for symptomatic orthostatic hypotension treatment.    From Wordnik.com.  [THE MEDICAL NEWS] Reference

Hinghofer-Szalkay H. Time course of cardiovascular responses induced by mental and orthostatic challenges.    From Wordnik.com.  [SpaceRef Top Stories] Reference

FDA issues Proposal to Withdraw Marketing Approval for orthostatic hypotension drug midodrine hydrochloride.    From Wordnik.com.  [THE MEDICAL NEWS] Reference

Other common adverse reactions were headaches (8\%, 10\%), hypokalemia (22\%, 10\%), orthostatic hypotension.    From Wordnik.com. Reference

Influence of age on syncope following prolonged exercise; differential responses but similar orthostatic intolerance.    From Wordnik.com.  [SpaceRef Top Stories] Reference

The first are square or rectangular with rounded corners, the base course occasionally consisting of orthostatic slabs.    From Wordnik.com.  [Rough Stone Monuments and Their Builders] Reference

Long stay in bed leading to deep vein thrombosis c. it corrects the deformity of the hip .. and orthostatic pneumonia. d.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Near this last site was also found a round hut based on a course of orthostatic slabs of typically megalithic appearance.    From Wordnik.com.  [Rough Stone Monuments and Their Builders] Reference

It has a concave façade of large orthostatic slabs with horizontal blocks set in front of them to keep them in position.    From Wordnik.com.  [Rough Stone Monuments and Their Builders] Reference

Warnings and Precautions also include the risk of orthostatic hypotension, cataracts, seizures, hyperprolactinemia, and dysphagia.    From Wordnik.com. Reference

Mechanisms of changes in human hemodynamics under the conditions of microgravity and prognosis of postflight orthostatic stability.    From Wordnik.com.  [SpaceRef Top Stories] Reference

RAPAFLO (TM) is associated with a low incidence of orthostatic hypotension and the associated symptoms of syncope, fainting and dizziness.    From Wordnik.com.  [Medlogs - Recent stories] Reference