Last update: May 13, 2019


Very Low Risk for breastfeeding

Safe. Compatible.
Minimal risk for breastfeeding and infant.

Benzodiazepina de acción corta. Indicada en el tratamiento de convulsiones agudas, en insomnio y en sedación prequirúrgica e inducción de anestesia.
Adminstración oral o intravenosa, generalmente en dosis única. En insomnio, dosis única diaria.

Se excreta en leche materna en cantidad indetectable o clínicamente no significativa (Nitsun 2006, Koitabashi 1997, Matheson 1990) y no se han observado problemas en lactantes cuyas madres la tomaban, incluido el periodo neonatal (Kelly 2012).

La administración de una dosis de midazolam tras la cesárea no interfiere con el inicio y duración de la lactancia (Suppa 2012).

Diversas sociedades médicas y consensos de expertos consideran seguro el uso de esta medicación durante la lactancia. Se puede volver a amamantar en cuanto la madre esté despierta y se encuentre en condiciones. (Briggs 2017, Hale 2017 p655, Reece 2017, Schaefer 2007 p634, Nitsun 2006, Spigset 1994, Lee 1993).

No parece justificable esperar a amamantar 4 horas tras la última dosis de midazolam como recomiendan algunos (Shergill 2012, Vargo 2012, Mathewson 1990).

El uso puntual y a baja dosis de benzodiacepinas es compatible con la lactancia (Kelly 2012, Rubin 2004, Iqbal 2002, Hägg 2000, McElhatton 1994, Lee 1993, Kanto 1982).

Conviene elegir benzodiacepinas de duración corta y utilizar la dosis mínima eficaz (Rowe 2013), especialmente en el periodo neonatal y en caso de prematuridad porque pueden acumularse en el lactante durante el uso crónico (Sachs 2013).

Conviene vigilar somnolencia y alimentación adecuada del lactante.
No se recomienda compartir cama con el bebé si se está tomado este medicamento debido a riesgo incrementado de asfixia o muerte súbita del lactante (UNICEF 2018, 2017, 2014 y 2013, Landa 2012, ABM 2008, UNICEF 2006).


We do not have alternatives for Midazolam since it is relatively safe.

Suggestions made at e-lactancia are done by APILAM´s pediatricians and pharmacists, and are based on updated scientific publications.
It is not intended to replace the relationship you have with your doctor but to compound it.

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

Midazolam is also known as

Midazolam in other languages or writings:


Midazolam belongs to this group or family:


Variable Value Unit
Oral Bioavail. 44 %
Molecular weight 326 daltons
Protein Binding 98 %
VD 1 - 3,1 l/Kg
Tmax 0,3 - 0,8 hours
T1/2 1,5 - 2,5 hours
M/P ratio 0,15 -
Theoretical Dose 0,0014 mg/Kg/d
Relative Dose 1 - 2 %
Relat.Ped.Dose 0,1 - 1,4 %


  1. UNICEF UK. Caring for your baby at night. A guide for parents. 2018 Full text (link to original source) Full text (in our servers)
  2. Briggs GG, Freeman RK, Towers CV, Forinash AB. Drugs in Pregnancy and Lactation: A Reference Guide to Fetal and Neonatal Risk. Wolters Kluwer Health. 11th edition (acces on line) 2017
  3. Ball H, Blair PS. (For UNICEF UK). Caring for your baby at night. Health professional´s guide. 2017 Full text (link to original source) Full text (in our servers)
  4. Hale TW, Rowe HE. Medications & Mothers' Milk. A Manual of Lactation Pharmacology. Springer Publishing Company. 2017
  5. Reece-Stremtan Sarah, Campos Matilde, Kokajko Lauren, and The Academy of Breastfeeding Medicine. Breastfeeding Medicine. ABM Clinical Protocol #15: Analgesia and Anesthesia for the Breastfeeding Mother, Revised 2017. Breastfeed Med. 2017 Nov;12(9):500-506. Full text (link to original source) Full text (in our servers)
  6. Grover S, Avasthi A. Mood stabilizers in pregnancy and lactation. Indian J Psychiatry. 2015 Abstract Full text (link to original source) Full text (in our servers)
  7. UNICEF UK. Statement on co-sleeping following publication of new NICE postnatal guidance. Infosheet. 2014 Full text (link to original source) Full text (in our servers)
  8. Sachs HC; Committee On Drugs. The transfer of drugs and therapeutics into human breast milk: an update on selected topics. Pediatrics. 2013 Sep;132(3):e796-809. Abstract Full text (link to original source) Full text (in our servers)
  9. Rowe H, Baker T, Hale TW. Maternal medication, drug use, and breastfeeding. Pediatr Clin North Am. 2013 Feb;60(1):275-94. Abstract
  10. UNICEF UK Baby Friendly Initiative statement on Bed-sharing when parents do not smoke: is there a risk of SIDS? An individual level analysis of five major case-control studies. 2013 Full text (link to original source) Full text (in our servers)
  11. L.Landa Rivera, M.Díaz-Gómez, A.Gómez Papi, J.M.Paricio Talayero, C.Pallás Alonso, M.T.Hernández Aguilar, J.Aguayo Maldonado, J.M.Arena Ansotegui, S.Ares Segura, A.Jiménez Moya, J.J.Lasarte Velillas, J.Martín Calama, M.D.Romero Escós. El colecho favorece la práctica de la lactancia materna y no aumenta el riesgo de muerte súbita del lactante. Dormir con los padres. Rev Pediatr Aten Primaria. 14:53-60 2012 Full text (link to original source) Full text (in our servers)
  12. ASGE Standard of Practice Committee, Shergill AK, Ben-Menachem T, Chandrasekhara V, Chathadi K, Decker GA, Evans JA, Early DS, Fanelli RD, Fisher DA, Foley KQ, Fukami N, Hwang JH, Jain R, Jue TL, Khan KM, Lightdale J, Pasha SF, Sharaf RN, Dominitz JA, Cash BD. Guidelines for endoscopy in pregnant and lactating women. Gastrointest Endosc. 2012 Abstract Full text (link to original source) Full text (in our servers)
  13. American Association for the Study of Liver Diseases; American College of Gastroenterology; American Gastroenterological Association Institute; American Society for Gastrointestinal Endoscopy; Society for Gastroenterology Nurses and Associates, Vargo JJ, DeLegge MH, Feld AD, Gerstenberger PD, Kwo PY, Lightdale JR, Nuccio S, Rex DK, Schiller LR. Multisociety sedation curriculum for gastrointestinal endoscopy. Gastroenterology. 2012 Abstract Full text (link to original source) Full text (in our servers)
  14. Suppa E, Valente A, Catarci S, Zanfini BA, Draisci G. A study of low-dose S-ketamine infusion as \preventive\ pain treatment for cesarean section with spinal anesthesia: benefits and side effects. Minerva Anestesiol. 2012 Abstract Full text (link to original source) Full text (in our servers)
  15. Kelly LE, Poon S, Madadi P, Koren G. Neonatal benzodiazepines exposure during breastfeeding. J Pediatr. 2012 Sep;161(3):448-51. Abstract
  16. ABM - The Academy of Breastfeeding Medicine Protocol Committee. ABM Clinical Protocol #6: Guideline on Co-Sleeping and Breastfeeding. Breastfeeding Medicine 2008 Abstract Full text (link to original source) Full text (in our servers)
  17. ABM - Comité de protocolos de la Academia médica de lactancia materna (Academy of Breastfeeding Medicine). Protocolo Clínico de la ABM #6: Lineamientos sobre la práctica de dormir al bebé junto con la madre y la lactancia materna Revisión, marzo de 2008. Breastfeeding Medicine 2008 Full text (link to original source) Full text (in our servers)
  18. Schaefer C, Peters P, Miller RK. Drugs During Pregnancy and Lactation. Treatment options and risk assessment. Elsevier, second edition. London. 2007
  19. UNICEF UK. Compartiendo la cama con tu bebé. Guía para madres que amamantan. Folleto 2006 Full text (in our servers)
  20. Nitsun M, Szokol JW, Saleh HJ, Murphy GS, Vender JS, Luong L, Raikoff K, Avram MJ. Pharmacokinetics of midazolam, propofol, and fentanyl transfer to human breast milk. Clin Pharmacol Ther. 2006 Abstract
  21. Rubin ET, Lee A, Ito S. When breastfeeding mothers need CNS-acting drugs. Can J Clin Pharmacol. 2004 Fall;11(2):e257-66. Epub 2004 Dec 8. Abstract
  22. Iqbal MM, Sobhan T, Ryals T. Effects of commonly used benzodiazepines on the fetus, the neonate, and the nursing infant. Psychiatr Serv. 2002 Jan;53(1):39-49. Review. Abstract Full text (in our servers)
  23. Hägg S, Spigset O. Anticonvulsant use during lactation. Drug Saf. 2000 Jun;22(6):425-40. Review. Abstract
  24. Koitabashi T, Satoh N, Takino Y. Intravenous midazolam passage into breast milk. J Anesth. 1997 Abstract
  25. McElhatton PR. The effects of benzodiazepine use during pregnancy and lactation. Reprod Toxicol. 1994 Nov-Dec;8(6):461-75. Review. Abstract
  26. Spigset O. Anaesthetic agents and excretion in breast milk. Acta Anaesthesiol Scand. 1994 Abstract
  27. Lee JJ, Rubin AP. Breast feeding and anaesthesia. Anaesthesia. 1993 Jul;48(7):616-25. Review. Abstract Full text (link to original source) Full text (in our servers)
  28. Matheson I, Lunde PK, Bredesen JE. Midazolam and nitrazepam in the maternity ward: milk concentrations and clinical effects. Br J Clin Pharmacol. 1990 Abstract Full text (link to original source) Full text (in our servers)
  29. Heizmann P, Eckert M, Ziegler WH. Pharmacokinetics and bioavailability of midazolam in man. Br J Clin Pharmacol. 1983 Abstract
  30. Kanto JH. Use of benzodiazepines during pregnancy, labour and lactation, with particular reference to pharmacokinetic considerations. Drugs. 1982 May;23(5):354-80. Review. Abstract
  31. Allonen H, Ziegler G, Klotz U. Midazolam kinetics. Clin Pharmacol Ther. 1981 Abstract

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