α adrenergic receptor Muscarinic Receptors

Effects During Pregnancy and Lactation
◉ Overview of Use During Lactation
Reboxetine has not been approved for marketing by the U.S. Food and Drug Administration (FDA), but it is available in other countries. Limited information suggests that even with daily doses up to 10 mg, low concentrations of the drug in breast milk do not appear to have any adverse effects on breastfed infants. Breastfeeding women should be closely monitored for reboxetine use until more data become available.
◉ Effects on Breastfed Infants
Four infants whose mothers had postpartum depression were breastfed for 1.3 to 2.1 months (feeding duration not specified) while their mothers were receiving reboxetine treatment (mean daily dose of 6.5 mg (79 mcg/kg)). One mother was also taking 20 mg of escitalopram daily, and another was taking 300 mg of sertraline daily. No adverse reactions were observed in any of the infants. Three of the infants had normal Denver developmental scores; the fourth infant, whose mother was taking reboxetine, had a developmental age of only 71% of normal, but this problem existed before the mother started taking reboxetine. Five women took reboxetine during pregnancy and lactation (time of use not specified), at unknown dosages. Their infants experienced no adverse reactions and all developmental milestones were normal. ◉ Effects on Lactation and Breast Milk Reboxetine increases serum prolactin levels in male subjects. The significance of this finding for lactating mothers is unclear. For mothers who have established lactation, prolactin levels may not affect their ability to breastfeed. An observational study investigated the outcomes of 2,859 women who took antidepressants for two years prior to pregnancy. Compared to women who did not take antidepressants during pregnancy, mothers who took antidepressants during all three stages of pregnancy were 37% less likely to breastfeed at discharge. Mothers who took antidepressants only in the third trimester were 75% less likely to breastfeed at discharge. Mothers who took antidepressants only in the first and second trimesters were not less likely to breastfeed at discharge. The study did not specify the type of antidepressant used by the mothers. A retrospective cohort study analyzed hospital electronic medical records from 2001 to 2008, comparing women who took antidepressants in late pregnancy (n = 575), women with mental illness but not taking antidepressants (n = 1552), and mothers not diagnosed with mental illness (n = 30,535). Women treated with antidepressants were 37% less likely to breastfeed at discharge than women not diagnosed with mental illness, but there was no difference in the likelihood of breastfeeding compared to untreated mothers diagnosed with mental illness. None of the mothers were taking reboxetine. A study of 80,882 Norwegian mother-infant pairs between 1999 and 2008 showed that 392 women reported starting antidepressants postpartum, and 201 women reported starting antidepressants during pregnancy. Compared to the control group who were not exposed to antidepressants, taking antidepressants in late pregnancy was associated with a 7% lower likelihood of initiating breastfeeding, but had no effect on the duration of breastfeeding or the rate of exclusive breastfeeding. Compared to the control group who were not exposed to antidepressants, recent initiation or restart of antidepressant use was associated with a 63% lower likelihood of primary breastfeeding at 6 months and a 51% lower likelihood of any form of breastfeeding, and was also associated with a 2.6-fold increased risk of abrupt cessation of breastfeeding. No specific antidepressants were mentioned in the study.

[1]. Cytochrome P-450-mediated metabolism of the individual enantiomers of the antidepressant agent reboxetine in human liver microsomes. Drug Metab Dispos. 1999 Nov;27(11):1334-40.

[2]. Review of the pharmacokinetics and metabolism of reboxetine, a selective noradrenaline reuptake inhibitor. Eur Neuropsychopharmacol. 1997 Apr;7 Suppl 1:S23-35; discussion S71-3.

A morpholine derivative, a selective and potent norepinephrine reuptake inhibitor; used to treat depression.

C20H27NO6S

409.155

105017-39-8

Reboxetine mesylate;98769-84-7

127150

Typically exists as solid at room temperature

2

7

6

28

425

2

CCOC1=CC=CC=C1O[C@@H]([C@H]2CNCCO2)C3=CC=CC=C3.CS(=O)(=O)O

CGTZMJIMMUNLQD-STYNFMPRSA-N

InChI=1S/C19H23NO3.CH4O3S/c1-2-21-16-10-6-7-11-17(16)23-19(15-8-4-3-5-9-15)18-14-20-12-13-22-18;1-5(2,3)4/h3-11,18-20H,2,12-14H2,1H3;1H3,(H,2,3,4)/t18-,19-;/m1./s1

(2R)-2-[(R)-(2-ethoxyphenoxy)-phenylmethyl]morpholine;methanesulfonic acid

2934.99.9001

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

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

May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples

Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

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Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).

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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)]
*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.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin → 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO → 100 μLPEG300 → 200 μL castor oil → 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10： 10 : 80 (i.e. 100 μL Ethanol → 100 μL Cremophor → 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH → 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline)

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Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).

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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders

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Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

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