Question

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

Chlorthalidone lactation summary

Chlorthalidone is dangerous in breastfeeding
  • DrLact safety Score for Chlorthalidone is 7 out of 8 which is considered Dangerous as per our analyses.
  • A safety Score of 7 indicates that usage of Chlorthalidone may cause toxic or severe side effects in breastfed baby.
  • Our study of different scientific research indicates that Chlorthalidone may cause moderate to high side effects or may affect milk supply in lactating mother.
  • Our suggestion is to use safer alternate options rather than using Chlorthalidone .
  • Usage of Chlorthalidone is in contradiction to breastfeeding hence if it is must to use Chlorthalidone and there is no better alternative available then breastfeeding shall be stopped permanently or temporarily.
  • 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 Chlorthalidone usage in lactation

Thiazidic diuretic. Long-term treatment with diuretic drugs (particularly those Thiazides with long lasting effect and loop-acting drugs) may inhibit lactation. Use a lower dose as possible, especially during the first postnatal month.

Answer by DrLact: About Chlorthalidone usage in lactation

Although amounts of chlorthalidone in milk are not great, its slow clearance may lead to accumulation in the infant, especially while nursing a newborn or preterm infant. It may also suppress lactation. An alternate drug may be preferred.

Chlorthalidone Possible Effects in Breastfeeding

Chlorthalidone has been used successfully to suppress lactation by giving 200 mg orally right after delivery, followed by 100 mg dailyy for 3 days in conjunction with fluid restriction and breast binding.[2] However, a comparative study found no difference between chlorthalidone 200 mg daily for 7.6 days and placebo in milk leakage and breast engorgement and pain.[3] The added contribution of the diuretic to fluid restriction and breast binding, which are effective in suppressing lactation, has not been studied. There are no data on the effects of diuretics on established, ongoing lactation.
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