Health and MedicineMedicinesMain contraindications of aspirin or acetylsalicylic acid

Main contraindications of aspirin or acetylsalicylic acid

When is the consumption of aspirin or acetylsalicylic acid not recommended? We discover what its main contraindications are.

Scientifically known by the name of acetylsalicylic acid, and more popularly by the trade name of aspirin, we are probably dealing with one of the most well-known, consumed and also popular drugs or medications. It is a drug used as an analgesic and anti-inflammatory, useful for relieving mild and moderate pain and also inflammation.

It is also useful as a platelet antiaggregant (therefore indicated for people at risk of blood clot formation) or as an antipyretic in order to reduce high fever. In fact, it is common for many doctors to prescribe aspirin in order to prevent heart attacks, strokes, angina pectoris, and transient ischemic attacks.

On the one hand, aspirin is capable of reducing the substances in our body that cause inflammation or pain. While, on the other hand, it prevents platelets -blood cells- from adhering to each other, forming clots. For this reason, those who have suffered a heart attack should take aspirin, since it prevents the formation of other blood clots in the coronary arteries.

Taking into account that there are different types of aspirin, we must bear in mind that the dose regarding the amount of aspirin to take could vary, so it is the doctor or pharmacist who can help obtain more information about how and when to take it. However, it is necessary to keep in mind that aspirin can be taken both prescribed by the medical specialist, and without being prescribed.

When taking aspirin, we must know that if other medications are being taken, they could increase or decrease the effect of acetylsalicylic acid, causing interactions.  Among the medicines or drugs that can cause the appearance of interactions, we can mention the following:

  • Ibuprofen.
  • Anticoagulants.
  • Other drugs containing aspirin (prescription or nonprescription).
  • Acetaminophen.
  • Corticosteroids
  • Naproxen.
  • Ketoprofen.
  • Medications for diabetes.
  • Medicines for high blood pressure (arterial hypertension).

In addition, it is necessary to avoid the consumption of alcoholic beverages during treatment with aspirin, since both products combined can damage the stomach internally.

When is aspirin not recommended?

But as with any other medication, aspirin also has certain contraindications that mean that in certain circumstances, at certain times or conditions, its consumption is not entirely safe or even completely and totally contraindicated.

The most important contraindications of aspirin are the following:

  • Aspirin allergy.
  • Hemophilia.
  • Hodgkin’s disease.
  • Gastric ulcer, bleeding ulcer or other digestive and/or stomach problems.
  • Kidney disease.
  • Liver disease
  • Heart disease or heart failure.
  • Asthma.
  • Gout.
  • Anemia (or has ever occurred).
  • Presence of nasal polyps.
  • If you are planning a pregnancy, are pregnant or are breastfeeding your child.
  • Before a surgical or dental procedure.

In the face of any of these conditions, it is very important that the doctor knows our medical history, especially before starting to take aspirin regularly.

Some side effects may also occur, such as gastrointestinal conditions (gastric irritation, gastric ulcer, duodenal ulcer, vomiting, and nausea), hepatitis, and kidney dysfunction, bleeding, or elevated liver enzymes.


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