Rat 5-HT_2A ( Ki = 0.42 nM ); Rat 5-HT_1A Receptor ( Ki = 3.4 nM ); Rat D₂ Receptor ( Ki = 4.8 nM )

Ziprasidone blocks wild-type hERG current less potently, with an IC(50) of 2.8 mM in Xenopus oocytes. [2] Ziprasidone has an inherent protective mechanism against drug-induced increases in food intake in rats, as evidenced by its ability to suppress the significant increases in food intake caused by olanzapine[2]. Rat hippocampal regions (CA1, CA3, and dentate gyrus, DG) exhibit significant increases in NGF and ChAT immunoreactivity when treated with ziprasidone [3]. As with the atypical antipsychotics clozapine (ED50 = 250 mg/kg i.v.) and olanzapine (ED50 = 1000 mg/kg i.v.), ziprasidone dose-dependently slows raphe unit activity in anesthetized rats.[5]

Cell Line: HEK-293 cells
Concentration: 0-500 nM
Incubation Time: 150 seconds
Result: Blocked wild-type hERG current in a voltage- and concentration-dependent manner (IC50 = 120 nm).

Eight-week-old female Sprague-Dawley rats weighing 200 to 250 g
20 mg/kg
Oral gavage; 20 mg/kg; once daily; 7 weeks

Effects During Pregnancy and Lactation
◉ Summary of Use during Lactation
Because there is little published experience with ziprasidone during breastfeeding, other antipsychotic agents may be preferred, especially while nursing a newborn or preterm infant. A safety scoring system finds ziprasidone possible to use cautiously during breastfeeding. Infants breastfed during maternal use of ziprasidone should be monitored for excess sedation, irritability, poor feeding, and extrapyramidal symptoms, such as tremors and abnormal muscle movements.
◉ Effects in Breastfed Infants
A woman took ziprasidone 40 mg and citalopram 60 mg daily throughout pregnancy and postpartum. She breastfed extensively, except for occasional formula feedings by others. At 6 months of age, a pediatrician found the infant to be healthy with normal growth and development.
Patients enlisted in the National Pregnancy Registry for Atypical Antipsychotics who were taking a second-generation antipsychotic drug while breastfeeding (n = 576) were compared to control breastfeeding patients who were not treated with a second-generation antipsychotic (n = 818). Of the patients who were taking a second-generation antipsychotic drug, 60.4% were on more than one psychotropic. A review of the pediatric medical records, no adverse effects were noted among infants exposed or not exposed to second-generation antipsychotic monotherapy or to polytherapy. The number of women taking ziprasidone was not reported.
◉ Effects on Lactation and Breastmilk
Prolactin elevation has occurred during ziprasidone treatment, and galactorrhea has been reported, often in adolescents. However, prolactin elevation might be more transient and less severe than with phenothiazines. The prolactin level in a mother with established lactation may not affect her ability to breastfeed.
Patients enlisted in the National Pregnancy Registry for Atypical Antipsychotics who were taking a second-generation antipsychotic drug while breastfeeding (n = 576) were compared to control breastfeeding patients who had primarily diagnoses of major depressive disorder and anxiety disorders, most often treated with SSRI or SNRI antidepressants, but not with a second-generation antipsychotic (n = 818). Among women on a second-generation antipsychotic, 60.4% were on more than one psychotropic compared with 24.4% among women in the control group. Of the women on a second-generation antipsychotic, 59.3% reported “ever breastfeeding” compared to 88.2% of women in the control group. At 3 months postpartum, 23% of women on a second-generation antipsychotic were exclusively breastfeeding compared to 47% of women in the control group. The number of women taking ziprasidone was not reported.

[1]. Eur J Pharmacol . 2001 Aug 17;425(3):197-201.

[2]. Biochem Pharmacol . 2006 Jan 12;71(3):278-86.

[3]. Eur J Pharmacol . 2004 Nov 28;505(1-3):253-4.

[4]. J Pharmacol Exp Ther . 2006 Aug;318(2):709-24.

[5]. Neuropsychopharmacology . 1999 Nov;21(5):622-31.

Ziprasidone Hydrochloride is the hydrochloride salt form of ziprasidone, a benzothiazolylpiperazine derivative and an atypical antipsychotic agent with an antischizophrenic property. Ziprasidone hydrochloride functions as an antagonist at the dopamine D2 and serotonin 5-HT2A and 5-HT1D receptors, and as an agonist at the 5-HT1A receptor. Ziprasidone hydrochloride also inhibits synaptic reuptake of serotonin and norepinephrine. The mechanism of action by which ziprasidone hydrochloride exerts its antischizophrenic effect is unknown but is potentially mediated through a combination of dopamine D2 and serotonin 5-HT2 antagonism. This agent also has antagonistic activity against histamine H1 and alpha-1-adrenergic receptors.
See also: Ziprasidone (has active moiety).

C21H22CL2N4OS

449.4

448.089

C, 56.13; H, 4.93; Cl, 15.78; N, 12.47; O, 3.56; S, 7.13

122883-93-6

Ziprasidone; 146939-27-7; Ziprasidone-d8; 1126745-58-1; Ziprasidone hydrochloride monohydrate; 138982-67-9; Ziprasidone mesylate trihydrate; 199191-69-0; Ziprasidone mesylate; 185021-64-1

219099

Solid powder

4.751

2

5

4

29

573

0

ClC1=CC2=C(CC(N2)=O)C=C1CCN(CC3)CCN3C4=NSC5=C4C=CC=C5.Cl

NZDBKBRIBJLNNT-UHFFFAOYSA-N

InChI=1S/C21H21ClN4OS.ClH/c22-17-13-18-15(12-20(27)23-18)11-14(17)5-6-25-7-9-26(10-8-25)21-16-3-1-2-4-19(16)28-24-21;/h1-4,11,13H,5-10,12H2,(H,23,27);1H

5-[2-[4-(1,2-benzothiazol-3-yl)piperazin-1-yl]ethyl]-6-chloro-1,3-dihydroindol-2-one;hydrochloride

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)

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.)