Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Monoisotopic mass
149.120449485
InChI
InChI=1S/C10H15N/c1-10(2,11)8-9-6-4-3-5-7-9/h3-7H,8,11H2,1-2H3
InChI Key
InChIKey=DHHVAGZRUROJKS-UHFFFAOYSA-N
IUPAC Name
2-methyl-1-phenylpropan-2-amine
Traditional IUPAC Name
phentermine
SMILES
CC(C)(N)CC1=CC=CC=C1
pKa (Strongest Basic)
10.25
Refractivity
48.34 m3·mol-1
Dược Lực Học :
Phentermine is indicated in the management of exogenous obesity as a short term (a few weeks) adjunct in a regimen of weight reduction based on caloric restriction. Phentermine hydrochloride is a sympathomimetic amine with pharmacologic activity similar to the prototype drugs of this class used in obesity, the amphetamines. Actions include central nervous system stimulation and elevation of blood pressure. Tachyphylaxis and tolerance have been demonstrated with all drugs of this class in which these phenomena have been looked for.
Cơ Chế Tác Dụng :
A central nervous system stimulant and sympathomimetic with actions and uses similar to those of dextroamphetamine. It has been used most frequently in the treatment of obesity. [PubChem]. Some common brand names for phentermine are Adipex-P® and Suprenza™. Phentermine is also available in combination medications such as Qsymia®.
Phentermine is an amphetamine that stimulates neurons to release or maintain high levels of a particular group of neurotransmitters known as catecholamines; these include dopamine and norepinephrine. High levels of these catecholamines tend to suppress hunger signals and appetite. The drug seems to inhibit reuptake of noradrenaline, dopamine, and seratonin through inhibition or reversal of the reuptake transporters. It may also inhibit MAO enzymes leaving more neurotransmitter available at the synapse.Phentermine (through catecholamine elevation) may also indirectly affect leptin levels in the brain. It is theorized that phentermine can raise levels of leptin which signal satiety. It is also theorized that increased levels of the catecholamines are partially responsible for halting another chemical messenger known as neuropeptide Y. This peptide initiates eating, decreases energy expenditure, and increases fat storage.
Dược Động Học :
▧ Absorption :
Phentermine is rapidly absorbed after oral ingestion.
▧ Protein binding :
Approximately 96.3%
▧ Metabolism :
Hepatic.
▧ Half Life :
16 to 31 hours
Độc Tính :
LD50 is adult monkeys is 15 to 20 mg/kg. Symptoms of overdose include delirium, mania, self-injury, marked hypertension, tachycardia, arrhythmia, hyperpyrexia, convulsion, coma, and circulatory collapse.
Chỉ Định :
For the treatment and management of obesity.
Tương Tác Thuốc :
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Acetophenazine
Decreased anorexic effect, may increase psychotic symptoms
-
Alimemazine
Decreased anorexic effect, may increase psychotic symptoms
-
Chlorpromazine
Decreased anorexic effect, may increase psychotic symptoms
-
Ethopropazine
Decreased anorexic effect, may increase psychotic symptoms
-
Fluoxetine
Risk of serotoninergic syndrome
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Fluphenazine
Decreased anorexic effect, may increase psychotic symptoms
-
Fluvoxamine
Risk of serotoninergic syndrome
-
Guanethidine
Phentermine may decrease the effect of guanethidine.
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Isocarboxazid
Possible hypertensive crisis
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Mesoridazine
Decreased anorexic effect, may increase psychotic symptoms
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Methdilazine
Decreased anorexic effect, may increase psychotic symptoms
-
Methotrimeprazine
Decreased anorexic effect, may increase psychotic symptoms
-
Paroxetine
Risk of serotoninergic syndrome
-
Perphenazine
Decreased anorexic effect, may increase psychotic symptoms
-
Phenelzine
Possible hypertensive crisis
-
Prochlorperazine
Decreased anorexic effect, may increase psychotic symptoms.
-
Promazine
Decreased anorexic effect, may increase psychotic symptoms
-
Promethazine
Decreased anorexic effect, may increase psychotic symptoms.
-
Propericiazine
Decreased anorexic effect, may increase psychotic symptoms.
-
Propiomazine
Decreased anorexic effect, may increase psychotic symptoms
-
Rasagiline
Possible hypertensive crisis
-
Thiethylperazine
Decreased anorexic effect, may increase psychotic symptoms
-
Thioridazine
Decreased anorexic effect, may increase psychotic symptoms
-
Tramadol
Increased risk of serotonin syndrome. Monitor for symptoms of serotonin syndrome.
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Trandolapril
Phentermine may reduce the efficacy of Trandolapril.
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Tranylcypromine
The MAO inhibitor, tranylcypromine, may increase the vasopressor effect of the amphetamine, phentermine. Concomitant therapy should be avoided.
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Trifluoperazine
Decreased anorexic effect, may increase psychotic symptoms
-
Triflupromazine
Decreased anorexic effect, may increase psychotic symptoms
-
Triprolidine
Triprolidine may reduce the sedative effect of the antihistamine, Phentermine.
-
Venlafaxine
Risk of serotoninergic syndrome
Liều Lượng & Cách Dùng :
Capsule - Oral
Capsule - Oral - 11.25 mg/69 mg (PHENTERMINE HYDROCHLORIDE/ TOPIRAMATE ER)
Capsule - Oral - 15 mg/92 mg (PHENTERMINE HYDROCHLORIDE/ TOPIRAMATE ER)
Capsule - Oral - 3.75 mg/23 mg (PHENTERMINE HYDROCHLORIDE/ TOPIRAMATE ER)
Capsule - Oral - 7.5 mg/46 mg (PHENTERMINE HYDROCHLORIDE/ TOPIRAMATE ER)
Dữ Kiện Thương Mại
Nhà Sản Xuất
-
Sản phẩm biệt dược : Adipex-P
-
Sản phẩm biệt dược : Duromine
-
Sản phẩm biệt dược : Fastin
-
Sản phẩm biệt dược : Ionamin
-
Sản phẩm biệt dược : Obenix
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Sản phẩm biệt dược : Obestin-30
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Sản phẩm biệt dược : Phentercot
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Sản phẩm biệt dược : Phentride
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Sản phẩm biệt dược : Pro-Fast
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Sản phẩm biệt dược : Suprenza
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Sản phẩm biệt dược : Teramine
-
Sản phẩm biệt dược : Zantryl
Tài Liệu Tham Khảo Thêm
National Drug Code Directory