Milnacipran (10 and 30 mg/kg, PO) causes a dose-related increase in the extracellular levels of 5-HT and NA in the medial prefrontal cortex of rats. Milnacipran (30 and 60 mg/kg, PO) significantly reduces the duration of both the immobility time in the forced swimming test and the freezing time in the conditioned fear stress test in rats, which are animal behavioral models for depression and anxiety, respectively. Milnacipran (<40 mg/kg i.p.) dose-dependently increases the extracellular levels of NA and 5-HT in hypothalamus of freely moving guinea pigs. Milnacipran administrated at 10 mg/kg and 40 mg/kg decreases NA metabolite MHPG levels by 57% and 47%, respectively, in hypothalamus of freely moving guinea pigs.

Effects During Pregnancy and Lactation
◉ Summary of Use during Lactation
Amounts of milnacipran in breastmilk are low and would not be expected to cause any adverse effects in breastfed infants. However, until more data become available, milnacipran should be used with caution during breastfeeding, especially while nursing a newborn or preterm infant.
◉ Effects in Breastfed Infants
Relevant published information was not found as of the revision date.
◉ Effects on Lactation and Breastmilk
Galactorrhea is reported by the manufacturer to be a side effect of milnacipran. One woman who was being treated for depression took an intentional overdose of 950 mg of milnacipran orally. From day 5 to day 15 after the overdose, the patient noted a flow of milk from her left breast. The galactorrhea resolved without treatment.
In a study of cases of hyperprolactinemia and its symptoms (e.g., gynecomastia) reported to a French pharmacovigilance center, milnacipran was not found to have an increased risk of causing hyperprolactinemia compared to other drugs.
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. 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. None of the mothers were taking milnacipran.
In a study of 80,882 Norwegian mother-infant pairs from 1999 to 2008, new postpartum antidepressant use was reported by 392 women and 201 reported that they continued antidepressants from pregnancy. Compared with the unexposed comparison group, late pregnancy antidepressant use was associated with a 7% reduced likelihood of breastfeeding initiation, but with no effect on breastfeeding duration or exclusivity. Compared with the unexposed comparison group, new or restarted antidepressant use was associated with a 63% reduced likelihood of predominant, and a 51% reduced likelihood of any breastfeeding at 6 months, as well as a 2.6-fold increased risk of abrupt breastfeeding discontinuation. Specific antidepressants were not mentioned.

Bioorg Med Chem Lett.2008 Feb 15;18(4):1346-9;Psychopharmacology (Berl).2004 Sep;175(2):241-6;Psychopharmacology (Berl).2002 Jul;162(3):323-32.

Milnacipran hydrochloride is a member of acetamides.
A cyclopropanecarboxamide serotonin and norepinephrine reuptake inhibitor (SNRI) that is used in the treatment of FIBROMYALGIA.
See also: Milnacipran (has active moiety).

C15H22N2O.HCL

282.81

282.149

101152-94-7

Milnacipran ((1S-cis) hydrochloride);175131-60-9;Dextromilnacipran;96847-55-1;Milnacipran;92623-85-3;Milnacipran-d5 hydrochloride;2750534-79-1

163701

White to off-white solid powder

393ºC at 760 mmHg

179-181ºC

1.66E-07mmHg at 25°C

3.273

2

2

5

19

295

2

CCN(CC)C(=O)[C@@]1(C[C@@H]1CN)C2=CC=CC=C2.Cl

XNCDYJFPRPDERF-PBCQUBLHSA-N

InChI=1S/C15H22N2O.ClH/c1-3-17(4-2)14(18)15(10-13(15)11-16)12-8-6-5-7-9-12;/h5-9,13H,3-4,10-11,16H2,1-2H3;1H/t13-,15+;/m1./s1

(1R,2S)-2-(aminomethyl)-N,N-diethyl-1-phenylcyclopropane-1-carboxamide hydrochloride

2934.99.9001

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.

Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Solubility in Formulation 1: ≥ 2.5 mg/mL (8.84 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

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Solubility in Formulation 2: ≥ 2.5 mg/mL (8.84 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (8.84 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

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Solubility in Formulation 4: 110 mg/mL (388.95 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with ultrasonication.

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 (Please use freshly prepared in vivo formulations for optimal results.)