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Drugs and Lactation Database (LactMed) [Internet]. Bethesda (MD): National Library of Medicine (US); 2006-.

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Drugs and Lactation Database (LactMed) [Internet].

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Levomilnacipran

Last Revision: November 16, 2020.

Estimated reading time: 2 minutes

CASRN: 96847-54-0

image 160658357 in the ncbi pubchem database

Drug Levels and Effects

Summary of Use during Lactation

Levomilnacipran has not been studied in nursing mothers. However, the racemic form of milnacipran has low levels in breastmilk are low and would not be expected to cause any adverse effects in breastfed infants. Until more data become available, levomilnacipran should be used with caution during breastfeeding, especially while nursing a newborn or preterm infant.

Drug Levels

Maternal Levels. Eight lactating women who were at least 12 weeks postpartum and weaning their infants received a single oral dose of racemic milnacipran 50 mg. The average peak milk level of milnacipran was 262 mcg/L at an average of 4 hours and the average milk level was 122 mcg/L. The relative infant dosage was estimated to be 2.8% of the weight-adjusted maternal dosage. Milnacipran was eliminated from milk with an average half-life of 7.5 hours.[1,2]

Infant Levels. Relevant published information was not found as of the revision date.

Effects in Breastfed Infants

Relevant published information was not found as of the revision date.

Effects on Lactation and Breastmilk

Relevant published information was not found as of the revision date.

An observational study looked at outcomes of 2859 women who took an antidepressant during the 2 years prior to pregnancy. Compared to women who did not take an antidepressant during pregnancy, mothers who took an antidepressant during all 3 trimesters of pregnancy were 37% less likely to be breastfeeding upon hospital discharge. Mothers who took an antidepressant only during the third trimester were 75% less likely to be breastfeeding at discharge. Those who took an antidepressant only during the first and second trimesters did not have a reduced likelihood of breastfeeding at discharge.[3] The antidepressants used by the mothers were not specified.

A retrospective cohort study of hospital electronic medical records from 2001 to 2008 compared women who had been dispensed an antidepressant during late gestation (n = 575) to those who had a psychiatric illness but did not receive an antidepressant (n = 1552) and mothers who did not have a psychiatric diagnosis (n = 30,535). Women who received an antidepressant were 37% less likely to be breastfeeding at discharge than women without a psychiatric diagnosis, but no less likely to be breastfeeding than untreated mothers with a psychiatric diagnosis.[4] None of the mothers were taking milnacipran.

Alternate Drugs to Consider

(Depression) Nortriptyline, Paroxetine, Sertraline

References

1.
Forest Pharmaceuticals. An open-label, single-dose pharmacokinetic study in healthy, lactating women. Study MLN-PK-22 2012. https://www​.allerganclinicaltrials​.com/en​/trial-details/?id=MLN-PK-22.
2.
Allergan, Inc. Savella Package Insert. December, 2017.
3.
Venkatesh KK, Castro VM, Perlis RH, et al. Impact of antidepressant treatment during pregnancy on obstetric outcomes among women previously treated for depression: An observational cohort study. J Perinatol. 2017;37:1003–9. [PubMed: 28682318]
4.
Leggett C, Costi L, Morrison JL, et al. Antidepressant use in late gestation and breastfeeding rates at discharge from hospital. J Hum Lact. 2017;33:701–9. [PubMed: 28984528]

Substance Identification

Substance Name

Levomilnacipran

CAS Registry Number

96847-54-0

Drug Class

Breast Feeding

Lactation

Adrenergic Uptake Inhibitors

Antidepressive Agents

Serotonin Uptake Inhibitors

Disclaimer: Information presented in this database is not meant as a substitute for professional judgment. You should consult your healthcare provider for breastfeeding advice related to your particular situation. The U.S. government does not warrant or assume any liability or responsibility for the accuracy or completeness of the information on this Site.

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