The Basics

What is Sildenafil?

As an injection, used to treat the symptoms of pulmonary arterial hypertension; taken orally, used to treat erectile dysfunction-ED.

Brand names for Sildenafil

Revatio, Viagra

How Sildenafil is classified

Phosphodiesterase 5 Inhibitors, Vasodilator Agents

Sildenafil During Pregnancy

Sildenafil pregnancy category

Category BNote that the FDA has deprecated the use of pregnancy categories, so for some medications, this information isn’t available. We still think it’s useful to list historical info, however, given what a common proxy this has been in the past.

What we know about taking Sildenafil while pregnant

N/A

Taking Sildenafil While Breastfeeding

What are recommendations for lactation if you're taking Sildenafil?

Limited data indicate that sildenafil and its active metabolite in breastmilk are poorly excreted into breastmilk. Amounts ingested by the infant are small and would not be expected to cause any adverse effects in breastfed infants.

Maternal / infant drug levels

Limited data indicate that sildenafil and its active metabolite in breastmilk are poorly excreted into breastmilk. Amounts ingested by the infant are small and would not be expected to cause any adverse effects in breastfed infants.

Possible effects of Sildenafil on milk supply

Relevant published information was not found as of the revision date.

Possible alternatives to Sildenafil

None listed

List of References

Lactation sources: Drugs and Lactation Database (LactMed) [Internet]. Bethesda (MD): National Library of Medicine (US); 2006-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK501922/1. Wollein U, Schech B, Hardt J et al. Determination and quantitation of sildenafil and its major metabolite in the breast milk of a lactating woman. J Pharm Biomed Anal. 2015;120:100-5. PMID: 26717019
2. Molelekwa V, Akhter P, McKenna P et al. Eisenmenger’s syndrome in a 27 week pregnancy–management with bosentan and sildenafil. Ir Med J. 2005;98:87-8. PMID: 15869069

Disclaimer: This material is provided for educational purposes only and is not intended for medical advice, diagnosis, or treatment. Consult your healthcare provider with any questions.

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