Last update June 27, 2022

Meprobamate

Likely Compatibility

Fairly safe. Mild or unlikely adverse effects. Compatible under certain circumstances. Follow-up recommended. Read Commentary.

Meprobamate is a carbamate with hypnotic, sedative, and muscle relaxant properties. It is an active metabolite of Carisoprodol. It is used in anxiety disorders, insomnia, and spastic and painful musculoskeletal disorders. Oral administration in 3 to 4 daily doses.

It is excreted in breast milk (Sachs 2013, Bailey 2002, Wilson 1980), but in clinically insignificant amounts, and no problem has been observed in an infant whose mother was taking it. (Nordang 2001)

Meprobamate has a powerful sedative effect. It has been withdrawn from the market in numerous countries due to its poor risk/benefit ratio. (EMA 2012)

It is recommended to check for sedation and/or lack of appetite in infants (Sachs 2013). Bed-sharing (co-sleeping) with the baby is not recommended if this drug are used. (ABM 2020 y 2008, UNICEF 2018, 2017, 2014 y 2013, Landa 2012, UNICEF 2006)

Until there is more published data on this drug in relation to breastfeeding, safer known alternatives may be preferable, especially during the neonatal period and in cases of prematurity.

Alternatives

  • Lorazepam (Safe substance and/or breastfeeding is the best option.)
  • Oxazepam (Safe substance and/or breastfeeding is the best option.)

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

Meprobamate is also known as


Meprobamate in other languages or writings:

Group

Meprobamate belongs to this group or family:

Tradenames

Main tradenames from several countries containing Meprobamate in its composition:

Pharmacokinetics

Variable Value Unit
Oral Bioavail. 100 %
Molecular weight 218 daltons
Protein Binding 15 - 20 %
VD 0.7 l/Kg
pKa 15.17 -
Tmax 1 - 3 hours
10 (6 - 17) hours
M/P ratio 2 - 4 -
Theoretical Dose 1.74 - 3 mg/Kg/d
Relative Dose 4 - 6 %

References

  1. (ABM): Blair PS, Ball HL, McKenna JJ, Feldman-Winter L, Marinelli KA, Bartick MC; Academy of Breastfeeding Medicine.. Bedsharing and Breastfeeding: The Academy of Breastfeeding Medicine Protocol #6, Revision 2019. Breastfeed Med. 2020 Jan;15(1):5-16. Abstract Full text (link to original source) Full text (in our servers)
  2. UNICEF UK. Caring for your baby at night. A guide for parents. 2018 Full text (link to original source) Full text (in our servers)
  3. UNICEF. 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. 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)
  5. 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)
  6. 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. None 2013 Full text (link to original source) Full text (in our servers)
  7. EMA. Questions and answers on the suspension of the marketing authorisations for oral meprobamate- containing medicines. EMA/42783/2012 Rev1. 2012 Full text (in our servers)
  8. 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)
  9. EMA. European Medicines Agency recommends suspension of marketing authorisations for meprobamate-containing medicines in the European Union. EMA/CHMP/49123/2012 2012 Full text (in our servers)
  10. 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)
  11. 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)
  12. UNICEF UK. Compartiendo la cama con tu bebé. Guía para madres que amamantan. Folleto 2006 Full text (in our servers)
  13. Bailey DN, Briggs JR. Carisoprodol: an unrecognized drug of abuse. Am J Clin Pathol. 2002 Abstract
  14. Nordeng H, Zahlsen K, Spigset O. Transfer of carisoprodol to breast milk. Ther Drug Monit. 2001 Abstract
  15. Wilson JT, Brown RD, Cherek DR, Dailey JW, Hilman B, Jobe PC, Manno BR, Manno JE, Redetzki HM, Stewart JJ. Drug excretion in human breast milk: principles, pharmacokinetics and projected consequences. Clin Pharmacokinet. 1980 Jan-Feb;5(1):1-66. Review. Abstract

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