Aspirina para prevenir coágulos sanguíneos

About aspirin to prevent blood clots

How does low-dose aspirin work?

Aspirin works by making platelets in the blood less sticky. Platelets help stop bleeding, but sometimes they can clump together inside a blood vessel and form a clot. This can block blood flow and cause a heart attack or stroke.

Low-dose aspirin (75 mg) helps stop platelets from sticking together, which reduces the risk of blood clots. It is often used for people with heart or blood vessel disease, or those who have had a heart attack, stroke, or heart surgery.

Low-dose aspirin is available with or without a prescription, but you should only take it regularly if your doctor recommends it, as it isn’t suitable for everyone.

At higher doses, aspirin is used to relieve pain and high temperature (fever). There is more information about this use of aspirin in a leaflet called Aspirina para dor ou febre.

Side effects of low-dose aspirina

Common side effects of aspirin are:

• Enjoo (náusea).

• Indigestão.

• Dor de estômago.

• Bleeding more easily (such as nosebleeds or bruising).

Você encontrará uma lista completa no folheto informativo do fabricante fornecido com o seu medicamento.

How to manage low-dose aspirin side effects

Os efeitos indesejados muitas vezes melhoram à medida que seu corpo se ajusta ao novo medicamento, mas fale com seu médico ou farmacêutico se algum dos seguintes persistir ou se tornar problemático.

Se você sentir quaisquer outros sintomas que acha que podem ser causados pelos comprimidos, fale com seu médico ou farmacêutico para mais orientações.

Who should not take low-dose aspirin?

Some medicines aren’t suitable for everyone. Before taking aspirin to prevent blood clots, it’s important your doctor knows:

• Se você está grávida ou amamentando.

• Se você já teve uma úlcera estomacal.

• If you have asthma.

• If you are under 16 years of age.

• Se você tiver algum problema com o funcionamento do seu fígado ou com o funcionamento dos seus rins.

• If you have a blood disorder such as haemophilia, or glucose-6-phosphate dehydrogenase (G6PD) deficiency.

• If you have gout.

• Se você tiver pressão alta (hipertensão).

• If you have ever had an unusual or allergic-type reaction after taking aspirin or a non-steroidal anti-inflammatory drug (NSAID).

  • NSAIDs include ibuprofeno, diclofenaco, indometacina e naproxeno. You should also let your doctor know if you have ever had an allergic reaction to any other medicine.

• Se você estiver tomando outros medicamentos. Isso inclui quaisquer medicamentos que você esteja tomando e que estejam disponíveis para compra sem receita médica, bem como medicamentos fitoterápicos e complementares.

How to take low-dose aspirin

• Before taking aspirin, read the leaflet inside the pack for important information and possible side effects.

• You will usually be advised to take one 75 mg tablet once a day, unless your doctor tells you differently. Take it exactly as prescribed.

• Take aspirin at the same time each day to help you remember. Many people take it in the morning with breakfast.

• Check what type of aspirin you have:

  • Dispersible tablets should be mixed with water and taken with food to protect your stomach.

  • Gastro-resistant (enteric-coated) tablets can be taken without food. Swallow them whole with water and do not chew them.

• If you are taking gastro-resistant tablets, do not take indigestion remedies in the 2 hours before or after your dose.

• If you miss a dose, take it when you remember unless it’s the next day. Não tome duas doses de uma vez.

Obtendo o máximo do seu tratamento

• Keep all your regular appointments with your doctor. This is so your doctor can check on your progress.

• Before taking any over-the-counter medicines, ask your pharmacist if they are safe with aspirin.

• Do not take other medicines that contain aspirin or anti-inflammatory painkillers such as ibuprofeno, including many cold and flu remedies.

• Aspirin should not be given to children under 16 unless prescribed, because it may be linked to Reye’s syndrome, a very rare but serious illness.

• If you are due to have an operation or dental treatment, tell the person carrying out the treatment that you are taking aspirin. This is because any bleeding may take longer than normal to stop.

• If a child accidentally takes aspirin, go to A&E immediately. Take the medicine packaging with you, even if it is empty.

How to store low-dose aspirin

• Mantenha todos os medicamentos fora do alcance e da vista das crianças.

• Armazene em local fresco e seco, longe de calor e luz diretos.

Informações importantes sobre todos os medicamentos

Perguntas frequentes

How long does it take for aspirin to prevent blood clots?

Aspirin starts to reduce platelet stickiness within about 1 hour of taking a dose. However, its full protective effect against blood clots is usually reached after several days of taking it daily.

Is it safe to take aspirin as a blood thinner long-term?

Yes, low-dose aspirin can be taken long-term as a blood thinner, but only under a doctor’s supervision. Long-term use can increase the risk of stomach irritation, ulcers, or bleeding, so your doctor will weigh the benefits against the risks and may recommend stomach protection if needed.

Can anyone take aspirin to prevent blood clots?

No, not everyone should take aspirin to prevent blood clots. It is only recommended for people with heart or blood vessel problems, a history of heart attack or stroke, or high clot risk, and should never be taken by children under 16 or anyone without a doctor’s advice