Health Tip: What's Behind My Low Blood Pressure?

(HealthDay News) -- Many people worry about high blood pressure and how to bring it under control. But low blood pressure also can be a medical problem, perhaps leading dizziness, fainting or fatigue.

The U.S. National Library of Medicine lists these common causes of low blood pressure (medically called hypotension):

• A side effect of medications, such as certain antidepressants, diuretics, painkillers or heart medicines.

• Alcohol use.

• Heart failure or heart attack.

• Dehydration.

• A severe allergic reaction (anaphylaxis).

• Advanced diabetes.

• Going into shock.

• Irregular heartbeat (arrhythmia).