Can You Take AZO While Breastfeeding?

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By Krystal Duhaney | Updated on Dec 3, 2023
Image for article Can You Take AZO While Breastfeeding?

It's generally recommended that you should avoid taking AZO1 , also known as phenazopyridine, while breastfeeding. This is due to the potential health risks associated with this medication.

AZO is a urinary pain reliever, but it's linked with several blood disorders that could be harmful. These include methemoglobinemia (an excess of methemoglobin in the blood, which can impair oxygen transportation), sulfhemoglobinemia (a rare condition involving the change of normal hemoglobin to sulfhemoglobin, also affecting oxygen transportation) and hemolytic anemia (a condition where red blood cells are destroyed faster than they can be produced).

Because of these risks, and the fact that there's limited research on whether AZO passes into breast milk, it's best to steer clear of this medication when breastfeeding. This recommendation is even more critical if your infant is younger than one month old or has a glucose-6-phosphate dehydrogenase (G6PD) deficiency. Babies with G6PD deficiency are more vulnerable to substances that can trigger hemolytic anemia.

Pregnant woman holding her stomach on a bed with a plant in the background

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  1. National Library of Medicine"Phenazopyridine"Oct 30, 2018https://www.ncbi.nlm.nih.gov/books/NBK501505/.


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Updated on Dec 3, 2023

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Can You Take AZO While Breastfeeding?

 Krystal Duhaney Profile Photo
By Krystal Duhaney | Updated on Dec 3, 2023
Image for article Can You Take AZO While Breastfeeding?

It's generally recommended that you should avoid taking AZO1 , also known as phenazopyridine, while breastfeeding. This is due to the potential health risks associated with this medication.

AZO is a urinary pain reliever, but it's linked with several blood disorders that could be harmful. These include methemoglobinemia (an excess of methemoglobin in the blood, which can impair oxygen transportation), sulfhemoglobinemia (a rare condition involving the change of normal hemoglobin to sulfhemoglobin, also affecting oxygen transportation) and hemolytic anemia (a condition where red blood cells are destroyed faster than they can be produced).

Because of these risks, and the fact that there's limited research on whether AZO passes into breast milk, it's best to steer clear of this medication when breastfeeding. This recommendation is even more critical if your infant is younger than one month old or has a glucose-6-phosphate dehydrogenase (G6PD) deficiency. Babies with G6PD deficiency are more vulnerable to substances that can trigger hemolytic anemia.

Pregnant woman holding her stomach on a bed with a plant in the background

Want evidence-based health & wellness advice for fertility, pregnancy, and postpartum delivered to your inbox?

Your privacy is important to us. By subscribing you agree to our Privacy Policy and Terms & Conditions.

Expectful uses only high-quality sources, including academic research institutions, medical associations, and subject matter experts.

  1. National Library of Medicine"Phenazopyridine"Oct 30, 2018https://www.ncbi.nlm.nih.gov/books/NBK501505/.


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