Does Aspirin® increase the risk of miscarriage? | Aspirin® during pregnancy

Does Aspirin® increase the risk of miscarriage?

Taking Aspirin® has no effect on the risk of miscarriage. On the contrary, Aspirin® is often used in low doses to reduce the risk of repeated spontaneous miscarriages. The mechanism and effectiveness are still being investigated. However, long-term use of Aspirin® increases the risk of developmental disorder of the baby and the risk of complications during birth (prolonged labour, blood loss). What could also interest you: signs of miscarriage


While taking Aspirin® during the first two thirds of pregnancy is not recommended for safety reasons, taking it during the last third of pregnancy is prohibited. In addition, if you are known to be hypersensitive to acetylsalicylic acid (ASA), you should not take it. Due to the blood-thinning effect of the drug, it should not be taken in cases of increased bleeding tendency (haemorrhagic diathesis). Due to the metabolism of the drug in the liver and kidney, a disturbance of the function of these organs can also rule out the use of the drug. Other contraindications include heart failure and simultaneous treatment with methotrexate or oral anticoagulants (inhibition of blood clotting).


In a low dosage (100 mg) Aspirin® can be used during pregnancy. It is used as a treatment in cases of suspected pre-eclampsia and for prevention in cases of repeated miscarriages. The single high dosage to relieve pain (500 mg) during the first two thirds of the pregnancy is possible without an increased risk for mother and child.

However, regular intake of high doses or taking Aspirin® in the last third of the pregnancy should be avoided in any case. ASS 100 contains 100 mg of the active substance acetylsalicylic acid (ASA). Due to the low dosage it only acts in the blood vessels before it is completely metabolised and inactivated in the liver.

Therefore it is normally used to inhibit a tendency to clot. During pregnancy, this low-dose Aspirin® can be administered in the context of the occurrence of pre-eclampsia or to prevent miscarriages. After consultation with a doctor, it is also possible to continue a blood-thinning therapy.

To avoid possible complications in the last third of pregnancy and birth, this medication should be discontinued during this period. Aspirin® Complex contains 500 mg of the active ingredient acetylsalicylic acid (ASA) combined with pseudoephedrine. Due to the high dosage, it acts not only in the blood vessels but also, after metabolism in the liver, in the entire body.

It is used to relieve pain, lower fever and reduce swelling of the nasal mucosa in colds. The high-dose Aspirin® should not be taken during pregnancy. Studies have not yet been able to prove that it is harmless. The administration of Aspirin® Complex in animal models has in some cases led to developmental disorders with malformations. An influence on pregnancy, birth and the development of the baby is to be feared.