Does aspirin cause low blood pressure?

Introduction

Aspirin is one of the most widely used medications in the world. Most commonly known for treating headaches and reducing fevers, aspirin also plays an important role in heart health. But if you’re concerned about your blood pressure, you may be wondering: does aspirin cause low blood pressure? This article will explore aspirin’s impact on blood pressure in different situations, using plain language and current research to provide a clear understanding.

What Is Aspirin?

Aspirin, also known as acetylsalicylic acid, is a nonsteroidal anti-inflammatory drug (NSAID). It relieves pain and reduces inflammation by blocking certain enzymes that produce prostaglandins. In low doses, it is commonly used to prevent blood clots, especially in people at risk for heart attacks or strokes.

How Aspirin Affects Blood Pressure

Research has shown that aspirin does not usually cause low blood pressure. However, in specific scenarios, it may have a small blood pressure-lowering effect when taken at night. This is not significant enough to be used as a treatment for high blood pressure. On the other hand, gastrointestinal bleeding caused by aspirin could indirectly lower blood pressure.

Effects in Seniors

Older adults may experience greater risks from aspirin, such as bleeding. Low blood pressure caused by internal bleeding can be dangerous in this age group. Thus, routine aspirin use in people over 60 without heart disease is no longer widely recommended.

Impact on People with Diabetes

People with diabetes often have an increased risk of cardiovascular disease. Aspirin may be used as a preventive measure in these cases. However, close monitoring is necessary since diabetes also affects the body’s ability to regulate blood pressure.

What the Studies Say

• Night-time low-dose aspirin may modestly reduce blood pressure in some people with hypertension.
• Most research supports that aspirin has a neutral effect on blood pressure overall.
• Aspirin-induced bleeding, though rare, can result in dangerously low blood pressure.

Safe Use of Aspirin

To use aspirin safely:

• Take it only under medical supervision.
• Do not mix with other NSAIDs without approval.
• Report signs of bleeding (e.g., black stools, vomiting blood).
• Check your blood pressure regularly, especially if you feel dizzy or faint.

FAQs

Can aspirin lower blood pressure?

Not typically. Its effect on blood pressure is minimal and not used to treat hypertension.

Should I take aspirin daily?

Only if your doctor recommends it, particularly if you have a history of heart disease.

Can aspirin cause side effects?

Yes, including stomach upset, ulcers, and increased bleeding risk.

Conclusion

While aspirin doesn’t usually cause low blood pressure, there are exceptions—particularly if bleeding occurs. Always consult your doctor before using aspirin for heart health or blood pressure concerns. Monitoring and informed use are key to safety.

References

1. Hermida RC, et al. “Aspirin administered at bedtime significantly reduces blood pressure in hypertensive patients.” Hypertension, 2002.
2. American Diabetes Association. “Standards of Medical Care in Diabetes—2023.” Diabetes Care, 2023.
3. U.S. Preventive Services Task Force. “Aspirin Use to Prevent Cardiovascular Disease.” 2022.
4. American Heart Association. “NSAIDs and Your Heart.” Updated 2023.
5. Davies MJ, et al. “Aspirin and blood pressure: a review.” Current Hypertension Reports, 2013.