Last update May 20, 2024


Limited compatibility

Unsafe. Moderate/severe adverse effects. Compatible under certain circumstances. Follow-up recommended. Use safer alternative or discontinue breastfeeding from 5 to 7 T ½ . Read Commentary.

A drug with hyperglycemic and antihypertensive action via peripheral vasodilatation. Indicated orally (2 to 3 daily doses) in the treatment of unresponsive hyperglycemia by hyperinsulinism and intravenously in hypertensive crises. Its use is authorized in the neonatal and infant period.

It is excreted in breast milk in small amounts, but could be clinically significant. (Saito 2022)

A newborn partially breastfed by a mother taking diazoxide orally had no clinical problems or alterations in blood glucose at one month of life. (Saito 2022)

If Diazoxide is taken during lactation, it is advisable to monitor the infant's blood glucose regularly.

Pending further published data on this drug in relation to lactation, safer known alternatives may be preferable (Schaefer 2015 p790), especially during the neonatal period and in case of prematurity.


Suggestions made at e-lactancia are done by APILAM team of health professionals, and are based on updated scientific publications. It is not intended to replace the relationship you have with your doctor but to compound it. The pharmaceutical industry contraindicates breastfeeding, mistakenly and without scientific reasons, in most of the drug data sheets.

Jose Maria Paricio, Founder & President of APILAM/e-Lactancia

Your contribution is essential for this service to continue to exist. We need the generosity of people like you who believe in the benefits of breastfeeding.

Thank you for helping to protect and promote breastfeeding.

José María Paricio, founder of e-lactancia.

Other names

Diazoxide in other languages or writings:


Variable Value Unit
Molecular weight 231 daltons
Protein Binding 90 %
pKa 8.74 -
Tmax 0.1 hours
28 ± 8.3 hours
Theoretical Dose 0.11 - 0.46 mg/Kg/d
Relative Dose 3.6 - 15.9 %


  1. Saito J, Kawasaki H, Adachi N, Sasaki A, Yakuwa N, Suzuki T, Sago H, Yamatani A, Horikawa R, Murashima A. Diazoxide during pregnancy and lactation: drug levels in maternal serum, cord blood, breast milk, and infant serum: a case report. Gynecol Endocrinol. 2022 Jun;38(6):528-530. Abstract
  2. Pfizer. Diazoxide (injection). Drug Summary. 2017 Full text (in our servers)
  3. Merck. Diazoxide (oral). Drug Summary. 2015 Full text (in our servers)
  4. Schaefer C, Peters P, Miller RK. Drugs During Pregnancy and Lactation. Treatment options and risk assessment. Elsevier, Third Edition. 2015

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