Resorcinol / Sulfur

Topical Keratolytic / Topical Keratolytic

Pregnancy

No studies have been done on pregnant animals to test the risks of resorcinol / sulfur on the fetus when used during pregnancy. 

Talk to your doctor about using topical resorcinol / sulfur during pregnancy.

Category: No category assigned by FDA

Category A

Adequate and well-controlled studies have failed to demonstrate a risk to the fetus in the first trimester of pregnancy (and there is no evidence of risk in later trimesters).

Category B

Animal reproduction studies have failed to demonstrate a risk to the fetus and there are no adequate and well-controlled studies in pregnant women.

Category C

Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.

Category D

There is positive evidence of human fetal risk based on adverse reaction data from investigational or marketing experience or studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.

Category X

Studies in animals or humans have demonstrated fetal abnormalities and/or there is positive evidence of human fetal risk based on adverse reaction data from investigational or marketing experience, and the risks involved in use of the drug in pregnant women clearly outweigh potential benefits.

Breastfeeding

Excretion into human milk: Unknown (for topical use)

Topical application of sulfur is safe in babies under 2 months of age and may be used by nursing mothers as well. There is no information on the excretion of resorcinol / sulfur into breast milk. 

If you are breastfeeding, speak with your physician before you use resorcinol / sulfur.

References
  1. Dailymed.nlm.nih.gov. (2018). Sulfur and Resorcinol (topical). [online] Available at: https://dailymed.nlm.nih.gov/dailymed/search.cfm?labeltype=all&query=RESORCINOL%2C+SULFUR&pagesize=20&page=1. [Accessed 2 July. 2018].
  2. Toxnet.nlm.nih.gov (2018). Sulfur. [online] Available at: https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/f?./temp/~mvwaJl:2. [Accessed 2 July. 2018].