Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Công thức hóa học
C28H36N4O2S
Monoisotopic mass
492.255897106
InChI
InChI=1S/C28H36N4O2S/c33-27-24-18-9-10-19(15-18)25(24)28(34)32(27)17-21-6-2-1-5-20(21)16-30-11-13-31(14-12-30)26-22-7-3-4-8-23(22)35-29-26/h3-4,7-8,18-21,24-25H,1-2,5-6,9-17H2/t18-,19+,20-,21-,24+,25-/m0/s1
InChI Key
InChIKey=PQXKDMSYBGKCJA-CVTJIBDQSA-N
IUPAC Name
(1R,2S,6R,7S)-4-{[(1R,2R)-2-{[4-(1,2-benzothiazol-3-yl)piperazin-1-yl]methyl}cyclohexyl]methyl}-4-azatricyclo[5.2.1.0²,⁶]decane-3,5-dione
Traditional IUPAC Name
lurasidone
SMILES
O=C1[C@H]2[C@@H]3CC[C@@H](C3)[C@H]2C(=O)N1C[C@@H]1CCCC[C@H]1CN1CCN(CC1)C1=NSC2=CC=CC=C12
pKa (Strongest Basic)
8.5
Refractivity
139.33 m3·mol-1
Dược Lực Học :
Lurasidone is a benzothiazol derivative that is an antagonist and binds with high affinity to Dopamine-2 (D2) (Ki = 0.994 nM), 5-HT2A (Ki = 0.47 nM) receptors, and 5-HT7 receptors (Ki = 0.495 nM). It also binds with moderate affinity to alpha-2C adrenergic receptors (Ki = 10.8 nM) and is a partial agonist at 5-HT1A receptors (Ki = 6.38 nM). Its actions on histaminergic and muscarinic receptors are negligible.
Cơ Chế Tác Dụng :
Lurasidone is an atypical antipsychotic developed by Dainippon Sumitomo Pharma. It was approved by the U.S. Food and Drug Administration (FDA) for treatment of schizophrenia on October 29, 2010 and is currently pending approval for the treatment of bipolar disorder in the United States. (Wikipedia)
Lurasidone is an atypical antipsychotic that is a D2 and 5-HT2A (mixed serotonin and dopamine activity) to improve cognition. It is thought that antagonism of serotonin receptors can improve negative symptoms of psychoses and reduce the extrapyramidal side effects that are often associated with typical antipsychotics.
Dược Động Học :
▧ Absorption :
Lurasidone is readily absorbed and quickly reaches maximal concentrations (Cmax) within 1-4 hours. When taken with food, there is a two-fold increase in exposure and time to maximal concentration is increased by 0.5-1.5 hours. This occurs regardless of fat or caloric content.
Bioavailability = 9-19%.
▧ Volume of Distribution :
6173 L
▧ Protein binding :
~99% bound to serum proteins.
▧ Metabolism :
Lurasidone is metabolized by CYP3A4 in which its major active metabolite is referred to as ID-14283 (25% of parent exposure). Its two minor metabolites are referred to as ID14326 and ID11614 which make up 3% and 1% of parent exposure respectively. Its two non-active metabolites are referred to as ID-20219 and ID-20220.
▧ Route of Elimination :
Urine (~9%) and feces (~80%)
▧ Half Life :
40 mg dose= 18 hours
120 mg - 160 mg dose = 29-37 hours
▧ Clearance :
3902 mL/min
Chỉ Định :
Treatment of schizophrenia.
Tương Tác Thuốc :
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Atazanavir
Concomitant therapy with a strong CYP3A4 inhibitor will increase level or effect of lurasidone. Coadministration with lurasidone is contraindicated.
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Bicalutamide
CYP3A4 Inhibitors like bicalutamide may increase the serum concentration of lurasidone. Limit adult lurasidone dose to 40 mg/day in patients receiving a moderate CYP3A4 inhibitor.
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Bosentan
Concomitant therapy with a CYP3A4 substrate and inducer will decrease levels of lurasidone. Coadministration with lurasidone is contraindicated.
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Carbamazepine
Concomitant therapy with a CYP3A4 inducer will decrease levels of lurasidone. Coadministration with lurasidone is contraindicated.
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Chloramphenicol
Concomitant therapy with a strong CYP3A4 inhibitor will increase level or effect of lurasidone. Coadministration with lurasidone is contraindicated.
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Clarithromycin
Concomitant therapy with a strong CYP3A4 inhibitor will increase level or effect of lurasidone. Coadministration with lurasidone is contraindicated.
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Clotrimazole
CYP3A4 Inhibitors (Moderate) such as clotrimazole may increase the serum concentration of lurasidone. Limit adult lurasidone dose to 40 mg/day in patients receiving a moderate CYP3A4 inhibitor.
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Conivaptan
CYP3A4 Inhibitors (Strong) may increase the serum concentration of Lurasidone. Avoid use of lurasidone in patients receiving strong CYP3A4 inhibitors.
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Darunavir
Concomitant therapy with a strong CYP3A4 inhibitor will increase level or effect of lurasidone. Coadministration with lurasidone is contraindicated.
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Delavirdine
Concomitant therapy with a strong CYP3A4 inhibitor will increase level or effect of lurasidone. Coadministration with lurasidone is contraindicated.
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Dexamethasone
Concomitant therapy with a CYP3A4 inducer will decrease levels of lurasidone. Coadministration with lurasidone is contraindicated. Will decrease Cmax of lurasidone by 85%.
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Dopamine
Dopamine increases toxicity (enhanced hypotensive effects) of lurasidone.
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Epinephrine
Epinephrine increases toxicity (enhance hypotensive effects) of lurasidone by pharmacodynamic synergism.
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Etravirine
Concomitant therapy with a CYP3A4 inducer will decrease levels of lurasidone. Coadministration with lurasidone is contraindicated.
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Etravirine
Lurasidone, when used concomitantly with etravirine (a strong CYP3A4 inducer), may experience a decrease in serum concentration. It is recommended to avoid concurrent therapy.
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Fosamprenavir
Concomitant therapy with a strong CYP3A4 inhibitor will increase level or effect of lurasidone. Coadministration with lurasidone is contraindicated.
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Fosphenytoin
Concomitant therapy with a CYP3A4 inducer will decrease levels of lurasidone. Coadministration with lurasidone is contraindicated.
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Imatinib
Concomitant therapy with a strong CYP3A4 inhibitor will increase level or effect of lurasidone. Coadministration with lurasidone is contraindicated.
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Indinavir
Concomitant therapy with a strong CYP3A4 inhibitor will increase level or effect of lurasidone. Coadministration with lurasidone is contraindicated.
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Itraconazole
Concomitant therapy with a strong CYP3A4 inhibitor will increase level or effect of lurasidone. Coadministration with lurasidone is contraindicated.
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Ketoconazole
Concomitant therapy with a strong CYP3A4 inhibitor will increase level or effect of lurasidone. Coadministration with lurasidone is contraindicated.
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Metoclopramide
Increases toxicity and risk of extrapyramidal effects of lurasidone by antidopaminergic effects. Concomitant therapy should be avoided.
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Nafcillin
Concomitant therapy will decrease levels of lurasidone via effects on CYP 3A4. Concomitant therapy is contraindicated.
Liều Lượng & Cách Dùng :
Tablet - Oral - 20 mg, 40 mg, 80 mg, 120 mg
Tài Liệu Tham Khảo Thêm
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