Does Aspirin Help with Lower Blood Pressure?

aspirin for lower blood pressure
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Aspirin is a drug commonly used to get relief from minor aches, pains, and fevers. It is also used as a blood thinner or an anti-inflammatory medication.

Without a prescription, Aspirin can be purchased over the counter from certified online pharmacy. Aspirin is the world’s first nonsteroidal anti-inflammatory medication (NSAID). An Aspirin is not a steroid but has similar properties.

Aspirin isn’t suitable for everyone and could have undesired side effects when a person is in pain; the nerves present in their damaged tissue signal the brain.

The brain, in return, sends a message to the damaged tissue to release certain chemicals called prostaglandins which is a hormone that makes the tissue swell up. This process also intensifies the signal process to the brain, which results in feeling more pain.

Here is where aspirin comes into the picture. The drug is used to block the signals hence reducing the pain. Aspirin also helps thin the blood, which reduces the swelling to an extent. (Vane, J.R. and Botting, R.M., 2003. The mechanism of action of aspirin)

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What is High Blood Pressure?

When the force of your blood pushing against the walls of your veins is constantly high, it is called Hypertension (high blood pressure). Our tissues and organs need oxygenated blood.

The nerves supply the oxygenated blood to our body parts. When our heart beats, it creates pressure that pushes the blood through our nerves, reaching our organs.

This pressure is our blood pressure, which contains two forces, the systolic pressure, which pumps out the blood out of the heart to the arteries, and the diastolic pressure, where the heart rests between heartbeats.

These two pressures represent the blood pressure in numbers (American Heart Association, 2017. What is high blood pressure?).

Aspirin for High Blood Pressure

aspirin for high blood pressure

High blood pressure, also known as Hypertension, is a problem that quite some people face. If not treated immediately, high blood pressure can cause nerve damage, heart damage and affect your brain.

A Spanish study shows that taking aspirin at night is more effective than taking one in the morning. This study included 328 people with stage 1 high blood pressure; the patients were 44 years old.

The patients were divided into three groups, group 1 was given no aspirin, group 2 was given 100mg of aspirin in the morning, and group 3 was given 100mg of aspirin in the night.

All patients’ blood pressure was monitored every 20 minutes during the day and every 30 minutes at night.

The results were as follow:
• When you take aspirin at night, your blood pressure drops significantly.
• When you take aspirin first thing in the morning, your blood pressure rises somewhat.
Without aspirin, blood pressure is somewhat lower (Hermida, R.C., Ayala, D.E., Calvo, C. and López, J.E., 2005).

Aspirin for Lower Blood Pressure

Low blood pressure, also known as Hypotension, can seem desirable, and for some people, it may not cause any problem.

But abnormally low blood pressure can cause dizziness and feel weariness. In extreme cases, low blood pressure can be life-threatening. Aspirin is a drug that is used to relieve pain, fever, etc.

The drug can also be used as an anti-inflammatory or a blood thinner. When a person has low blood pressure, their heart doesn’t pump the blood to the organs via the veins with much force, causing them to feel dizzy or lightheaded.

According to a study done by the population health sciences of the University of Wisconsin medical school, published by the National Library of Medicine, Nonsteroidal anti-inflammatory drugs usually are taken to increase blood pressure.

Still, it has been recently proven that aspirin lowers blood pressure. Trials conducted suggest that aspirin taken at bedtime lowers blood pressure in a controlled and unmasked way.

It also opposes past studies by showing an 18% increase in the risk of Hypertension among regular users. Short-term use of aspirin isn’t harmful and doesn’t seem to interfere with other antihypertensive medication.

Hence stating the benefits of aspirin is undesirable for high blood pressure (Effects of intensive blood-pressure lowering and low-dose aspirin in patients).

What are the Other ways to Cope up with Low Blood Pressure?

Low blood pressure isn’t much of a significant concern normally but should be taken care of to avoid other complications that it may cause later on. Following are a few ways to cope with low blood pressure:
• Using more salt.
• Drinking more water.
• Medications.
• Wearing compressed stockings.
• Implementing lifestyle changes.
• Getting a good night’s sleep.
• Exercising regularly.

Side effects of Aspirin

All medicines have their share of side effects, and aspirin also has side effects, although not everyone may experience them. Following are a few side effects:

Common Side Effects:

  • Slight Indigestion.
  • Bleeding more than usual. Since aspirin thins your blood, it can make you bleed more easily.

Serious Side Effects:

  • Rashes, peeling of the skin.
  • Coughing up blood. 
  • Blood in your stools.
  • Liver problems.
  • Swollen limbs.
  • Serious allergic reaction.


It is advisable to seek immediate medical care if one experiences such symptoms. Consult a doctor before taking any medications and be thorough with your symptoms for a speedy recovery.

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