Last update April 23, 2025

Flunarizine Hydrochloride

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.

Calcium channel blocker and antihistamine derived from piperazine with sedative effect. Used for the prophylaxis of migraines and vertigo. Oral administration in one daily dose, preferably at night due to the sedation it causes.

At the date of the last update, we found no published data on its excretion in breast milk.

Its very high binding to plasma proteins, very high volume of distribution and moderately high molecular weight make it difficult to excrete in breast milk, but its very long half-life (18 days) may facilitate excretion.

It increases prolactin levels (Formisano 1991, Cortelli 1988 and 1985, Bonuccelli 1988, Maestri 1987) and induces parkinsonism. (Teive 2004)

Until more data on this drug in relation to breastfeeding is known, safer alternatives are preferable - Propranolol, Metoprolol, Sertraline, Escitalopram, Amitrptyline or Valproate in migraine prophylaxis (Pringsheim 2012, Davanzo 2014) and Nimodipine, Betahistine or Ginkgo biloba in the prophylaxis of vertigo - especially in the neonatal period and in case of prematurity.

If this medicine is taken during breastfeeding, sleepiness and adequate feeding of the infant should be monitored and bed-sharing with the baby (co-sleeping) is not recommended. (ABM 2020 and 2008, UNICEF 2018, 2017, 2017, 2014 and 2013, Landa 2012, UNICEF 2006)

Alternatives

  • Amitriptyline (Safe product and/or breastfeeding is the best option.)
  • Betahistine (Fairly safe. Mild or unlikely adverse effects. Compatible under certain circumstances. Follow-up recommended. Read Commentary.)
  • Erenumab (Fairly safe. Mild or unlikely adverse effects. Compatible under certain circumstances. Follow-up recommended. Read Commentary.)
  • Escitalopram Oxalate (Safe product and/or breastfeeding is the best option.)
  • Ginkgo. Ginkgo biloba (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.)
  • Magnesium Carbonate (Safe product and/or breastfeeding is the best option.)
  • Metoprolol (Safe product and/or breastfeeding is the best option.)
  • Nimodipine (Safe product and/or breastfeeding is the best option.)
  • Nortriptyline Hydrochloride (Safe product and/or breastfeeding is the best option.)
  • Propranolol (Safe product and/or breastfeeding is the best option.)
  • Rimegepant (Safe product and/or breastfeeding is the best option.)
  • Sertraline Hydrochloride (Safe product and/or breastfeeding is the best option.)
  • Topiramate (Safe product and/or breastfeeding is the best option.)
  • Valproate, Valproic Acid (Safe product 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

Flunarizine Hydrochloride in other languages or writings:

Group

Flunarizine Hydrochloride belongs to this group or family:

Tradenames

Main tradenames from several countries containing Flunarizine Hydrochloride in its composition:

Pharmacokinetics

Variable Value Unit
Oral Bioavail. > 80 %
Molecular weight 477 daltons
Protein Binding 99 %
VD 78 l/Kg
Tmax 2 - 4 hours
432 hours

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. Davanzo R, Bua J, Paloni G, Facchina G. Breastfeeding and migraine drugs. Eur J Clin Pharmacol. 2014 Abstract
  5. 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)
  6. HPRA. Flunarizine. Drug Summary. 2014 Full text (in our servers)
  7. AEMPS. Flunarizina. Ficha técnica. 2013 Full text (in our servers)
  8. 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)
  9. Pringsheim T, Davenport W, Mackie G, Worthington I, Aubé M, Christie SN, Gladstone J, Becker WJ; Canadian Headache Society Prophylactic Guidelines Development Group. Canadian Headache Society guideline for migraine prophylaxis. Can J Neurol Sci. 2012 Abstract Full text (in our servers)
  10. 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)
  11. 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)
  12. 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)
  13. UNICEF UK. Compartiendo la cama con tu bebé. Guía para madres que amamantan. Folleto 2006 Full text (in our servers)
  14. Teive HA, Troiano AR, Germiniani FM, Werneck LC. Flunarizine and cinnarizine-induced parkinsonism: a historical and clinical analysis. Parkinsonism Relat Disord. 2004 Abstract
  15. Formisano R, Falaschi P, Cerbo R, Proietti A, Catarci T, D'Urso R, Roberti C, Aloise V, Chiarotti F, Agnoli A. Nimodipine in migraine: clinical efficacy and endocrinological effects. Eur J Clin Pharmacol. 1991 Abstract
  16. Bonuccelli U, Piccini P, Paoletti AM, Nuti A, Colzi A, Melis GB, Muratorio A. Flunarizine increases PRL secretion in normal and in migraineous women. J Neural Transm. 1988 Abstract
  17. Cortelli P, Santucci M, Righetti F, Pirazzoli P, Albani F, Baruzzi A, Sacquegna T, Cacciari E. Neuroendocrinological evidence of an anti-dopaminergic effect of flunarizine. Acta Neurol Scand. 1988 Abstract
  18. Maestri E, Manzoni GC, Marchesi G, Camellini L, Rossi G, Veneri G, Gnudi A. Effect of flunarizine on pituitary secretion by healthy men and in woman with migraine. Eur J Clin Pharmacol. 1987 Abstract
  19. Cortelli P, Santucci M, Righetti F, Pirazzoli P, Cacciari E, Albani F, Baldrati A, De Carolis P, Baruzzi A, Sacquegna T. Hormonal and metabolic changes induced by flunarizine therapy: preliminary results. Cephalalgia. 1985 Abstract

Total visits

64,702

Help us improve this entry

How to cite this entry

Do you need more information or did not found what you were looking for?

   Write us at elactancia.org@gmail.com

e-lactancia is a resource recommended by AELAMA of Spain

Would you like to recommend the use of e-lactancia? Write to us at corporate mail of APILAM