Can I take Sumatriptan during pregnancy or breastfeeding?

Migraines are a common and painful condition that affects many women during pregnancy and breastfeeding. Sumatriptan is often prescribed for those suffering from migraines to relieve pain and other associated symptoms. This article will look at whether taking Sumatriptan during pregnancy or while breastfeeding is safe.

What is Sumatriptan?

Sumatriptan belongs to a class of medications known as triptans. They work by constricting the blood vessels in the brain, reducing inflammation and relieving the symptoms associated with migraines. Sumatriptan is available as tablets, injections and nasal sprays.

Sumatriptan during pregnancy

There are limited studies on the use of Sumatriptan during pregnancy. Like many medications, it is difficult to determine the exact effects of Sumatriptan on a developing fetus. However, studies have shown that Sumatriptan crosses the placenta, which can reach the developing fetus.

In 2014, a study investigated the risk of congenital malformations following exposure to Sumatriptan during pregnancy. In a study of live births in Denmark, 815 infants exposed to Sumatriptan in the first 12 weeks of pregnancy were identified. The study revealed no significant increase in the risk of abnormalities following exposure to Sumatriptan.

While this study is reassuring, it is essential to note that using Sumatriptan during pregnancy should only be considered if the potential benefits outweigh the potential risks. In addition, it is recommended that pregnant women speak to their healthcare provider before taking Sumatriptan, as each pregnancy is unique and requires individualised treatment plans.

Sumatriptan during breastfeeding

There is also limited information available on the use of Sumatriptan during breastfeeding. However, it is believed to be safe for use during breastfeeding. A study was conducted to investigate 35 breastfeeding women who were taking Sumatriptan to treat migraines. The study revealed that there was minimal effect on the nursing baby. As with any medication, women must speak to their healthcare provider before using Sumatriptan during breastfeeding. In addition, it's important to discuss any potential risks and benefits, as well as alternative options that could be considered.

Side Effects of Sumatriptan

During pregnancy:

  • Increased risk of bleeding during pregnancy
  • Increased risk of high blood pressure and preeclampsia (rare)

During breastfeeding:

  • The potential transfer of the medication to the nursing baby through breast milk
  • Low levels of Sumatriptan are typically found in breast milk, but the risk to the baby is considered low
  • Rare cases of infants experiencing drowsiness, apnea, and reduced feeding have been reported, although these are not always linked to Sumatriptan use.

It is essential to speak with a healthcare provider to discuss potential side effects and ways to manage them, considering individual circumstances, medical history, and other factors before deciding whether to use Sumatriptan during pregnancy or breastfeeding.

Migraines/headaches during pregnancy

Migraines and headaches are common conditions during pregnancy, affecting many women. The hormonal changes during pregnancy can trigger these headaches, and the frequency and intensity can vary from woman to woman.

Can Sumatriptan cause a miscarriage?

There is no evidence to suggest that Sumatriptan increases the risk of miscarriage. However, speaking with a healthcare provider before taking any medication during pregnancy is still recommended to ensure it is safe for both the mother and the developing fetus.


Limited information is available on using Sumatriptan during pregnancy and breastfeeding. While studies suggest that Sumatriptan is safe for use during preganancy and breastfeeding, it is essential to note that each individual's case is unique. Therefore, speaking with a healthcare provider before taking any medication during pregnancy or breastfeeding is necessary. In addition, there are potential risks associated with Sumatriptan use during pregnancy and breastfeeding, and it should only be considered if the expected benefits outweigh the potential risks. Ultimately, the decision to take Sumatriptan during pregnancy or while breastfeeding should be made in consultation with a healthcare provider after weighing all the potential risks and benefits.

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