Aspirin: acetylsalicylic acid

Aspirin: acetylsalicylic acid


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THE acetylsalicylic acid it is also known as aspirin, the first brand ever sold. With antipyretic, analgesic, anti-inflammatory and anticoagulant properties, it is used to lower fever, reduce pain and inflammation, in addition to improving blood circulation. Its sale does not require a prescription, but it represents risks and the drug is not recommended for some types of pain. Ingestion of this medication can cause gastric problems and should be avoided until the third trimester of pregnancy or in case of ulcers.

  • Definition of acetylsalicylic acid

  • How Acetylsalicylic Acid Works

  • Anti-inflammatory action

  • Action time

  • When you should not take aspirin

  • Aspirin during pregnancy

  • Allergy to acetylsalicylic acid

  • Daily intake of aspirin

  • Adverse effects

  • How to take acetylsalicylic acid

Definition of acetylsalicylic acid

Acetylsalicylic acid is an organic molecule, which gives some plant organisms an aromatic power. It is present in some fruits and mushrooms. Its use can also be for antiseptic purposes or as a food preservative. Its analgesic action is also used in dermatological treatments against acne and warts.

How Acetylsalicylic Acid Works

First, aspirin works as an anti-inflammatory. It regulates the secretions of prostaglandin – a substance produced when the body is attacked. By regulating this substance, aspirin contains inflammation, reducing pain and fever. The action of acetylsalicylic acid comes from stomach absorption and diffusion of molecules throughout the body.

Anti-inflammatory action

Aspirin has an anti-inflammatory principle. Therefore, it is recommended to eat 1 to 3 grams per day, depending on the problem.

Action time

The duration of action of this medication varies between 30 and 60 minutes, depending on its formula.

When you should not take aspirin

This medicine should not be taken in cases of digestive problems in the stomach and duodenal ulcer, as well as if the patient has bleeding disorders or problems in the liver, kidneys and heart.

Aspirin during pregnancy

In case of pregnancy or lactation, it is not recommended to take acetylsalicylic acid without medical advice. The drug should not be taken from the beginning to the sixth month of pregnancy.

Allergy to acetylsalicylic acid

This medication should not be used in case of allergy to aspirin or another medication of the same class (such as ibuprofen). People with asthma or nasal polyps should also not take acetylsalicylic acid, due to the risk of Widal syndrome. To avoid an allergic reaction or overdosage, care is recommended when using the medication, as well as attention to its active ingredients. Aspirin can interact with several medications such as anticoagulants, FANS or remedies for gout. In such cases, medical monitoring is essential.

Daily intake of aspirin

In cases of daily treatment with low-dose aspirin (less than 300 mg) to prevent circulatory problems or cardiovascular accidents, acetylsalicylic acid should not be ingested to relieve pain without medical advice.

Adverse effects

Aspirin increases the risk of bleeding, both in low doses and in long-term treatments. Therefore, it is necessary to inform the doctor in case of surgeries. For the same reasons, aspirin should not be used to treat menstrual pain. Its use should be stopped in case of vomiting with blood, blood in the stool, dark stools or signs of gastrointestinal bleeding, rash or breathing difficulties, dizziness, headache and redness in the ears.

How to take acetylsalicylic acid

Aspirin can be taken in doses of 325 mg, 330 mg, 350 mg, 400 mg, 450 mg, 480 mg, 500 mg or 1,000 mg. The recommended dose varies between 500 mg and 1 g for adults in each dose, which can be repeated every four hours, if necessary. The maximum dose of acetylsalicylic acid is 3 g per day (2 g for the elderly). To avoid the appearance of unwanted effects it is recommended to avoid a dose above the recommended.

Photo: © Natan86 – Shuttertock.com

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