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Drugs and Lactation Database (LactMed®) [Internet]. Bethesda (MD): National Institute of Child Health and Human Development; 2006-.

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Drugs and Lactation Database (LactMed®) [Internet].

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Last Revision: October 31, 2018.

Estimated reading time: 1 minute

CASRN: 34031-32-8

Chemical structure

Drug Levels and Effects

Summary of Use during Lactation

Excretion of gold into milk after auranofen has not been studied. Case reports with other gold salts indicate that gold appears in milk in small quantities and at least a little of it is absorbed because it is detectable in the infant's urine. No convincing cases of toxicity have been reported. Opinions of authors of review articles vary from recommending avoidance to allowing use.[1][2][3][4][5] Monitoring for possible adverse effects in the breastfed infant would seem prudent.

Drug Levels

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

Four infants reportedly have been breastfed during maternal gold therapy (including gold sodium thiomalate and gold aurothioglucose).[6][7][8][9] Transient facial edema occurred in an 18-month-old infant, 3 months after the mother's treatment stopped.[6] The reaction was possibly due to gold in the mother's milk ingested by the infant.

Effects on Lactation and Breastmilk

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


Ostensen M. Treatment with immunosuppressive and disease modifying drugs during pregnancy and lactation. Am J Reprod Immunol. 1992;28:148-52. [PubMed: 1285866]
Rayburn WF. Connective tissue disorders and pregnancy. Recommendations for prescribing. J Reprod Med. 1998;43:341-9. [PubMed: 9583066]
Janssen NM and Genta MS. The effects of immunosuppressive and anti-inflammatory medications on fertility, pregnancy and lactation. Arch Intern Med. 2000;160:610-9. [PubMed: 10724046]
Ramsey-Goldman R, Schilling E. Optimum use of disease-modifying and immunosuppressive antirheumatic agents during pregnancy and lactation. Clin Immunother. 1996;5:40-58. DOI: 10.1007/BF03259314. [CrossRef]
Brooks PM, Needs CJ. Antirheumatic drugs in pregnancy and lactation. Baillieres Clin Rheumatol. 1990;4:157-71. [PubMed: 2282661]
Bell RA, Dale IM. Gold secretion in maternal milk. Arthritis Rheum. 1976;19:1374. Letter. [PubMed: 826260]
Sorensen SS. [Pharmacodynamic examination of patients treated with gold preparations] Nord Med. 1970;84:1508. Letter. [PubMed: 5494985]
Bennett PN, Humphries SJ, Osborne JP et al. Use of sodium aurothiomalate during lactation. Br J Clin Pharmacol. 1990;29:777-9. [PMC free article: PMC1380184] [PubMed: 2116162]
Blau SP. Metabolism of gold during lactation. Arthritis Rheum. 1973;16:777-8. Letter. [PubMed: 4757877]

Substance Identification

Substance Name


CAS Registry Number


Drug Class

Disclaimer: Information presented in this database is not meant as a substitute for professional judgment. You should consult your healthcare provider for breastfeeding advice related to your particular situation. The U.S. government does not warrant or assume any liability or responsibility for the accuracy or completeness of the information on this Site.

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Attribution Statement: LactMed is a registered trademark of the U.S. Department of Health and Human Services.

Bookshelf ID: NBK501027PMID: 30000086


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