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Can you take clonidine while breastfeeding?

By the pharmaranks editorial teamReviewed against the NIH/NLM Drugs and Lactation Database (LactMed) sourcesUpdated Nov 15, 2024How we research

What LactMed says

The National Library of Medicine’s own summary, quoted in full. We do not write a verdict of our own on this question, and we do not compress theirs into a label.

Because of the high serum levels found in some breastfed infants, possible infant side effects, and the possible negative effects on lactation, other antihypertensive agents are preferred, especially while nursing a newborn or preterm infant. Clonidine used as a single postpartum dose as a neuraxial analgesia adjunct probably has not been studied, but it may reduce the need for other medications or their dosages, and appears unlikely to affect breastfeeding.

Quoted from Clonidine — Drugs and Lactation Database (LactMed®), National Institute of Child Health and Human Development, revised November 15, 2024.

What LactMed would consider instead

LactMed ends this record by naming the drugs it would consider in place of clonidine. Whether any of them fits depends on what you are treating — this is the database’s list, not a recommendation from us.

How much clonidine gets into breastmilk

Maternal Levels In 9 women taking oral clonidine, milk levels were measured on 3 occasions: 1 to 5 days, 10 to 14 days and 45 to 60 days postpartum. Average daily dosages and approximate milk levels on the for the 3 measurements were 392 mcg daily and 1.8 mcg/L, 309 mcg daily and 2.9 mcg/L, and 242 mcg daily and 1.9 mcg/L. These values were about double those of simultaneous maternal serum concentrations. Using the average milk level data from this study, an exclusively breastfed infant would receive an estimated 4.1 to 8.4% of the maternal weight-adjusted dosage.

In a 4-week-postpartum mother, a milk level of 0.6 mcg/L was found in milk 2.5 hours after a dose while taking a clonidine dosage of 37.5 mcg orally twice daily. Based on this single milk level, the authors estimated that an exclusively breastfed infant would receive a maximum 6.8% of the maternal weight-adjusted dosage with this maternal dosage regimen.

In 3 women who received clonidine 150 mcg twice daily during pregnancy and postpartum, milk levels were measured 12 hours after their previous dose for the first 3 days postpartum. Milk clonidine levels ranged from 0.8 to 2.8 mcg/L.

Infant Levels. A 4-week-old breastfed infant whose mother was taking clonidine 37.5 mcg orally twice daily had an undetectable (<96 ng/L) serum clonidine level 1 hour after nursing.

In the infants of 9 women taking clonidine, infant serum levels were measured on three occasions: 1 to 5 days, 10 to 14 days and 45 to 60 days postpartum. Average daily maternal dosages on the three measurements were 392 mcg daily, 309 mcg daily, and 242 mcg daily, respectively. At these times, the infants had serum clonidine concentrations of 0.69, 0.53 and 0.35 mcg/L, respectively. These values represent an average of about 50% of the simultaneous maternal serum levels.

What has been seen in breastfed infants

No typical clonidine side effects (e.g., dry mouth, sedation) were seen in 9 infants whose mothers were taking clonidine, despite the infants' serum levels being about half that of their mothers'.

Three infants whose mothers were taking clonidine 150 mcg twice daily were breastfed. During the first 3 days postpartum, no adverse effects on blood glucose, electrocardiogram or blood pressure were noted. The infants had normal growth and psychomotor development at 1 year of age, although the duration of breastfeeding and clonidine use was not stated.

An infant was born to a mother taking clonidine 0.15 mg daily during pregnancy and postpartum. At 2 days of life, the infant presented with drowsiness, hypotonia, and suspected generalized seizures. At day 5, episodes of apnea were noted. On day 9 postpartum, breastfeeding was stopped and all symptoms resolved within 24 hours. Clonidine was probably the cause of the reaction, but the relative contributions of exposure during pregnancy and breastfeeding cannot be determined.

Effects on milk supply

Clonidine has complex, dose-related effects on both oxytocin and prolactin secretion. The net effect of the drug on nursing mothers has not been well studied. A case of hyperprolactinemia and gynecomastia occurred in a 6-year-old boy taking clonidine for hyperactivity and valproic acid for a seizure disorder. Galactorrhea ceased within 3 weeks of discontinuing clonidine. A case of clonidine-induced postpartum galactorrhea has also been reported. The maternal prolactin level in a mother with established lactation may not affect her ability to breastfeed.

Frequently asked questions

Can you take clonidine while breastfeeding?

What the NIH's Drugs and Lactation Database says about Clonidine while breastfeeding — quoted in full. The full record is quoted on this page, and the decision is one to make with the person who prescribed it — LactMed itself states it is not a substitute for professional judgement.

What can I take instead of clonidine while breastfeeding?

LactMed lists Amphetamine, Dextroamphetamine, Lisdexamfetamine, Methylphenidate, Candesartan, Benazepril, Captopril, Enalapril, Lisinopril, Quinapril, Hydrochlorothiazide, Methyldopa, Propranolol as alternate drugs to consider. That is the database's own list for this drug — whether any of them suits you depends on what you are treating.

Does clonidine pass into breastmilk?

LactMed's measured drug levels for clonidine are quoted in full on this page, under "How much gets into breastmilk".

Do I need to pump and dump after taking clonidine?

LactMed does not frame its records that way — it reports measured drug levels in milk and what has been observed in breastfed infants, which is what this page quotes. "Pump and dump" advice for a specific drug and dose should come from your clinician or a pharmacist, not from a general rule.

More on clonidine

LactMed states that the information it presents is not a substitute for professional judgement, and that you should consult your healthcare provider for breastfeeding advice related to your particular situation. Nothing on this page is medical advice.