Lansoprazole use while Breastfeeding
Drugs containing Lansoprazole: Prevacid, Prevpac, Prevacid SoluTab, Prevacid OTC, Prevacid 24HR, Prevacid IV, Prevacid NapraPAC, Prevacid NapraPAC 500, Prevacid NapraPAC 375
Medically reviewed by Drugs.com. Last updated on Feb 24, 2019.
Lansoprazole Levels and Effects while Breastfeeding
Summary of Use during Lactation
No information is available on the use of lansoprazole during breastfeeding. However, lansoprazole has been used safely in newborn infants, so it is unlikely that the amount in breastmilk would be harmful.
Maternal Levels. Relevant published information was not found as of the revision date.
Infant Levels. Relevant published information was not found as of the revision date.
Effects in Breastfed Infants
Relevant published information was not found as of the revision date.
Effects on Lactation and Breastmilk
The Spanish pharmacovigilance system found 3 cases of gynecomastia associated with lansoprazole reported during the time period of 1982 to 2006.
One case of elevated serum prolactin and galactorrhea was reported in a 21-year-old man. When omeprazole was substituted for lansoprazole, the serum prolactin decreased to the normal range and galactorrhea ceased. Although this case occurred in Spain, it was not included in the report above.
A 13-year-old girl with a recent history of bilateral galactorrhea and hyperprolactinemia from omeprazole and domperidone on separate occasions was given lansoprazole to prevent gastrointestinal irritation following intravenous diclofenac for a severe headache. After 3 days of lansoprazole therapy, she again developed galactorrhea and an elevated serum prolactin that returned to normal a week after discontinuing lansoprazole.
A 17-year-old woman using a progestin-containing IUD for 1 year began lansoprazole 15 mg daily and presented after 1 week with bilateral galactorrhea and hyperprolactinemia of 92 mcg/L. Seventy-two hours after discontinuation of lansoprazole, galactorrhea ceased. Four months later, serum prolactin was normal at 24.1 mcg/L with no recurrence of galactorrhea. The authors judged the adverse reaction likely to be caused by lansoprazole.
The prolactin level in a mother with established lactation may not affect her ability to breastfeed.
Alternate Drugs to Consider
1. Carvajal A, Macias D, Gutierrez A et al. Gynaecomastia associated with proton pump inhibitors: A case series from the Spanish Pharmacovigilance System. Drug Saf. 2007;30:527-31. PMID: 17536878
2. Izquierdo Prieto OM, Moreno Alia E, Rosillo Gonzalez A. [Galactorrhea induced by lansoprazole]. Aten Primaria. 2004;34:325-6. PMID: 15491529
3. Jabbar A, Khan R, Farrukh SN. Hyperprolactinaemia induced by proton pump inhibitor. J Pak Med Assoc. 2010;60:689-90. PMID: 20726208
4. Duwicquet F , Gras-Champel V, Masmoudi K. [Hyperprolactinemia with galactorrhea induced by lansoprazole: A case report]. Therapie. 2017;72:691-3. PMID: 29061292
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