Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Monoisotopic mass
177.115364107
InChI
InChI=1S/C11H15NO/c1-9-11(13-8-7-12-9)10-5-3-2-4-6-10/h2-6,9,11-12H,7-8H2,1H3
InChI Key
InChIKey=OOBHFESNSZDWIU-UHFFFAOYSA-N
IUPAC Name
3-methyl-2-phenylmorpholine
Traditional IUPAC Name
phenmetrazine
SMILES
CC1NCCOC1C1=CC=CC=C1
pKa (Strongest Basic)
8.22
Refractivity
52.47 m3·mol-1
Dược Lực Học :
Phenmetrazine is a sympathomimetic drug used primarily as an appetite depressant. Its actions and mechanisms are similar to dextroamphetamine. Amphetamines are non-catecholamine sympathomimetic amines with CNS stimulant activity. Phenmetrazine was originally sold under the tradename Preludin as an anorectic. It has since been removed from the market. It is by some considered to have a greater potential for addiction than the amphetamines, and has been abused in many countries, for example Sweden.
Cơ Chế Tác Dụng :
A sympathomimetic drug used primarily as an appetite depressant. Its actions and mechanisms are similar to dextroamphetamine. [PubChem]
Phenmetrazine is thought to block the reuptake of norepinephrine and dopamine into the presynaptic neuron leading to an increase in the release of these monoamines into the extraneuronal space. Dopamine integrates incoming sensory stimuli, initiates and controls fine movement (nigro-neostriatal pathway), controls emotional behavior (midbrain mesolimbic-forebrain system) and controls hypothalamic-pituitary endocrine system (tubero-infundibular system). It is this latter effect on the tubero-infundibular systm that seems to lead to reduced food intake. Phenmetrazine also acts as a monoamine oxidase inhibitor.
Dược Động Học :
▧ Absorption :
Readily absorbed from the gastro-intestinal tract and buccal mucosa.
▧ Metabolism :
Primarily hepatic (via CYP3A and CYP2D6). Resistant to metabolism by monoamine oxidase. Metabolism involves deamination to para-hydroxyamphetamine and phenylacetone; this latter compound is subsequently oxidize to benzoic acid and excreted as glucuronide or glycine (hippuric acid) conjugate. Smaller amounts of amphetamine are converted to norephedrine by oxidation.
▧ Half Life :
16 to 31 hours
Độc Tính :
Adult monkeys have an LD50 of 15 to 20 mg/kg, whereas for young monkeys the LD50 is only 5 mg/kg. Symptoms of overdose include acute central nervous system stimulation, cardiotoxicity causing tachycardia, arrhythmias, hypertension, and cardiovascular collapse. Whilst some patients show signs of toxicity at blood concentrations of 20 µg/L, chronic abusers of amphetamine have been known to have blood concentration of up to 3000 µg/L.
Chỉ Định :
Used as an anorectic in the treatment of obesity.
Tương Tác Thuốc :
-
Chlorpromazine
Decreased anorexic effect, may increase psychotic symptoms
-
Fluphenazine
Decreased anorexic effect, may increase psychotic symptoms
-
Guanethidine
Phenmetrazine may decrease the effect of guanethidine.
-
Isocarboxazid
Possible hypertensive crisis
-
Mesoridazine
Decreased anorexic effect, may increase psychotic symptoms
-
Methotrimeprazine
Decreased anorexic effect, may increase psychotic symptoms
-
Perphenazine
Decreased anorexic effect, may increase psychotic symptoms
-
Prochlorperazine
Decreased anorexic effect, may increase pyschotic symptoms
-
Promethazine
Decreased anorexic effect, may increase pyschotic symptoms
-
Propericiazine
Decreased anorexic effect, may increase pyschotic symptoms
-
Rasagiline
Possible hypertensive crisis
-
Thioridazine
Decreased anorexic effect, may increase psychotic symptoms
-
Trifluoperazine
Decreased anorexic effect, may increase psychotic symptoms