Tyzeka and Breastfeeding

The manufacturer of Tyzeka (telbivudine) recommends avoiding the drug while breastfeeding. It is known that the medicine passes through breast milk in rats, and it is expected that it would also pass through human breast milk. If breastfeeding is something that you are considering while using this drug, it's important to discuss this with your healthcare provider.

Can Breastfeeding Women Take Tyzeka?

Tyzeka® (telbivudine) is a prescription medicine used in the treatment of hepatitis B infection. At this time, it is not known if Tyzeka passes through breast milk in humans. The manufacturer of the medication recommends that women should not breastfeed during Tyzeka treatment. If you are breastfeeding or plan to start, talk with your healthcare provider before taking Tyzeka.

More Information on Tyzeka and Breastfeeding

Tyzeka has been shown to pass through the breast milk of rats. However, the medication has not been studied in breastfeeding women. Therefore, it is unknown whether it would be found in human breast milk or if it would potentially harm a nursing child. However, based on the properties of the drug, it is expected to pass through breast milk to some extent.
If your healthcare provider recommends taking Tyzeka while breastfeeding, make sure to watch your infant closely for any possible Tyzeka side effects. Possible side effects may include:
  • Tiredness
  • Abdominal (stomach) pain
  • Cough
  • Fever
  • Problems sleeping
  • Rash
  • Nausea
  • Vomiting
  • Diarrhea or loose stools.

Talking With Your Healthcare Provider

You should discuss breastfeeding and Tyzeka use with your healthcare provider. Each woman's situation is different, and you and your healthcare provider understand your situation best. After considering what you want and expect, as well as your current health situation, the two of you can make a shared decision that is right for you.
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Tyzeka Medication Information

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