Question

I am a breastfeeding mother and i want to know if it is safe to use St. John´s Wort? Is St. John´s Wort safe for nursing mother and child? Does St. John´s Wort extracts into breast milk? Does St. John´s Wort has any long term or short term side effects on infants? Can St. John´s Wort influence milk supply or can St. John´s Wort decrease milk supply in lactating mothers?

St. John´s Wort lactation summary

St. John´s Wort is safe in breastfeeding
  • DrLact safety Score for St. John´s Wort is 1 out of 8 which is considered Safe as per our analyses.
  • A safety Score of 1 indicates that usage of St. John´s Wort is mostly safe during lactation for breastfed baby.
  • Our study of different scientific research also indicates that St. John´s Wort does not cause any serious side effects in breastfeeding mothers.
  • Most of scientific studies and research papers declaring usage of St. John´s Wort safe in breastfeeding are based on normal dosage and may not hold true for higher dosage.
  • Score calculated using the DrLact safety Version 1.2 model, this score ranges from 0 to 8 and measures overall safety of drug in lactation. Scores are primarily calculated using publicly available case studies, research papers, other scientific journals and publically available data.

Answer by Dr. Ru: About St. John´s Wort usage in lactation

Herb commonly used from ancient times. Firm evidence is available on its effectiveness for treatment of depression, to the extent that it should be avoided a sudden stop of medication to prevent a rebound effect. It has been also topically used for the treatment of wounds, burns and eczema due to healing and antiseptical properties. Constituents are: Hypericin, Hyperforin and Quercetin. Antidepressant properties are attributed to Hypericin but mostly to Hyperforin. Quercetin is a flavonoid which is commonly found in many fruits and eatable vegetables. Hyperforin is excreted into breast milk in nil or clinically non-significant amount with not side-effects reported among breastfed infants from treated mothers, except for isolated and dubious cases of somnolence and colicky pain with spontaneous resolution with no medical intervention being required. Plasma levels in those infants were undetectable or close to the lower detectable point (0.1μg/L). Hypericin has not been detected in the breast milk. Quercetin levels found were as low as of few nanomols/L., and related to composition of fruits and vegetables of diet. It is most important to make sure that composition and amount of Hypericum contained in commercially available products is correct, do not take it without medical surveillance, avoid sudden stop and consider pharmacological interactions with many other medications.

Alternate Drugs for Phytotherapy, Systemic Use

Chasteberry(Unsafe)
Chamomile(Safe)
Echinacea(Low Risk)
Alfalfa(Unsafe)
Dong Quai(Low Risk)
Cranberry(Safe)
Licorice(Unsafe)
Rhubarb(Low Risk)
Lavender(Low Risk)
Barberry(Dangerous)
Carob(Safe)
Common Poppy(Unsafe)
Angelica(Unsafe)
Star Anise(Dangerous)
Mugwort(Unsafe)
Edible Burdock(Low Risk)
Box(Unsafe)
Boldo(Unsafe)
Calaguala(Safe)
Caralluma(Low Risk)
Carrageen(Low Risk)
Blue-Cohosh(Dangerous)
Squisandra(Low Risk)
Black-Cohosh(Unsafe)
Horsetail(Unsafe)
Colocynth Pulp(Dangerous)
Ergot Fungus(Dangerous)
Ephedra(Unsafe)
Steviol(Safe)
Eucalyptus(Unsafe)
Eyebright(Safe)
Flowers(Low Risk)
Fucus(Unsafe)
Goat´s Rue(Unsafe)
Bearberry(Unsafe)
Guarana(Low Risk)
Herniary(Low Risk)
Hyssop(Unsafe)
Syrup Of Ipecac(Low Risk)
Jin Bu Huan(Dangerous)
Kava Kava(Dangerous)
Clubmoss(Unsafe)
Maca(Safe)
Nux Vomica(Dangerous)
Papain(Low Risk)
Passion Flower(Low Risk)
African Cherry(Dangerous)
Scots Pine(Unsafe)
Pennyroyal(Unsafe)
Primrose(Safe)
Radish(Safe)
Ironwort(Low Risk)
Liquorice(Unsafe)
Rooibos(Safe)
Rose Hip(Safe)
Willow(Safe)
Soy(Low Risk)
Herbal Teas(Low Risk)
Rock Tea(Low Risk)
Tormentil(Safe)
Meadow-Sweet(Low Risk)
Sarsaparilla(Low Risk)
Sweet Flag(Unsafe)
Saw palmetto(Low Risk)
Cat's Claw(Low Risk)
Milk Vetch(Low Risk)
White Mulberry(Low Risk)
Di Huang(Low Risk)
Zi Wan(Unsafe)
Dang Shen(Low Risk)
Reishi(Low Risk)
Glycyrrhizin(Unsafe)
Carrageenan(Low Risk)
Carrageenin(Low Risk)
Passion Vine(Low Risk)
Chaste Tree(Unsafe)
Sweet Cane(Unsafe)
Sweet root(Unsafe)
Irish Moss(Low Risk)
Bromelain(Safe)
Bromelin(Safe)
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. We do not warrant or assume any liability or responsibility for the accuracy or completeness of the information on this Site.