Postural Hypotension
Postural hypotension (also called orthostatic hypotension) is a sudden fall in blood pressure when you rise from sitting or lying down. Blood pressure drops by at least 20 mmHg systolic within three minutes of standing, reducing blood flow to the brain and causing lightheadedness, blurred vision, or a brief faint. It is particularly common in older adults and in people taking certain medicines for heart and blood pressure conditions.
Medicine used to treat Postural Hypotension
What brings it on
Dehydration is the most frequent trigger, and in hot, humid climates across Southeast Asia, Thailand, Indonesia, Malaysia, this risk is heightened year-round. Other contributors include prolonged bed rest, diabetes, Parkinson’s disease, and some antihypertensives or diuretics. Alcohol and large meals can also provoke a drop.
Managing the condition
Simple self-care helps a great deal: rise slowly from bed or a chair, stay well hydrated, wear compression stockings, and avoid standing still for long periods. When lifestyle measures are insufficient, midodrine, an alpha-adrenergic agonist that tightens blood vessels, is a recognised option for raising standing blood pressure. If you experience frequent or prolonged fainting, seek medical assessment to rule out underlying cardiac or neurological causes.