Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Monoisotopic mass
270.103813142
InChI
InChI=1S/C12H18N2O3S/c1-3-4-9-13-12(15)14-18(16,17)11-7-5-10(2)6-8-11/h5-8H,3-4,9H2,1-2H3,(H2,13,14,15)
InChI Key
InChIKey=JLRGJRBPOGGCBT-UHFFFAOYSA-N
IUPAC Name
3-butyl-1-[(4-methylbenzene)sulfonyl]urea
Traditional IUPAC Name
3-butyl-1-(4-methylbenzenesulfonyl)urea
SMILES
CCCCNC(=O)NS(=O)(=O)C1=CC=C(C)C=C1
Độ hòa tan
109 mg/L (at 37 °C)
pKa (strongest acidic)
4.33
Refractivity
70.27 m3·mol-1
Dược Lực Học :
Tolbutamide, a first-generation sulfonylurea antidiabetic agent, is used with diet to lower blood glucose levels in patients with diabetes mellitus type II. Tolbutamide is twice as potent as the related second-generation agent glipizide. Tolbutamide lowers blood sugar by stimulating the pancreas to secrete insulin and helping the body use insulin efficiently. The pancreas must be able to produce insulin for this drug to work.
Cơ Chế Tác Dụng :
Tolbutamide is an oral antihyperglycemic agent used for the treatment of non-insulin-dependent diabetes mellitus (NIDDM). It is structurally similar to acetohexamide, chlorpropamide and tolazamide and belongs to the sulfonylurea class of insulin secretagogues, which act by stimulating β cells of the pancreas to release insulin. Sulfonylureas increase both basal insulin secretion and meal-stimulated insulin release. Medications in this class differ in their dose, rate of absorption, duration of action, route of elimination and binding site on their target pancreatic β cell receptor. Sulfonylureas also increase peripheral glucose utilization, decrease hepatic gluconeogenesis and may increase the number and sensitivity of insulin receptors. Sulfonylureas are associated with weight gain, though less so than insulin. Due to their mechanism of action, sulfonylureas may cause hypoglycemia and require consistent food intake to decrease this risk. The risk of hypoglycemia is increased in elderly, debilitated and malnourished individuals. Tolbutamide appears to be metabolized in the liver. Tolbutamide and its metabolites are excreted in urine (75-85%) and feces.
Sulfonylureas lower blood glucose in patients with NIDDM by directly stimulating the acute release of insulin from functioning beta cells of pancreatic islet tissue by an unknown process that involves a sulfonylurea receptor (receptor 1) on the beta cell. Sulfonylureas inhibit the ATP-potassium channels on the beta cell membrane and potassium efflux, which results in depolarization and calcium influx, calcium-calmodulin binding, kinase activation, and release of insulin-containing granules by exocytosis, an effect similar to that of glucose.
Dược Động Học :
▧ Absorption :
Readily absorbed following oral administration. Tolbutamide is detectable in plasma 30-60 minutes following oral administration of a single dose with peak plasma concentrations occurring within 3-5 hours.
Absorption is unaltered if taken with food but is increased with high pH.
▧ Protein binding :
Approximately 95% bound to plasma proteins.
▧ Metabolism :
Metabolized in the liver principally via oxidation of the p-methyl group producing the carboxyl metabolite, 1-butyl-3-p-carboxyphenylsulfonylurea. May also be metabolized to hydroxytolbutamide. Tolbutamide does not undergo acetylation like antibacterial sulfonamides as it does not have a p-amino group.
▧ Route of Elimination :
Unchanged drug and metabolites are eliminated in the urine and feces. Approximately 75-85% of a single orally administered dose is excreted in the urine principally as the 1-butyl-3-p-carboxyphenylsulfonylurea within 24 hours.
▧ Half Life :
Approximately 7 hours with interindividual variations ranging from 4-25 hours. Tolbutamide has the shortest duration of action, 6-12 hours, of the antidiabetic sulfonylureas.
Độc Tính :
Oral, mouse: LD50 = 2600 mg/kg
Chỉ Định :
For treatment of NIDDM (non-insulin-dependent diabetes mellitus) in conjunction with diet and exercise.
Tương Tác Thuốc :
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Acebutolol
Acebutolol may decrease symptoms of hypoglycemia and increase the time required for the body to compensate for hypoglycemia.
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Acenocoumarol
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Acenocoumarol. Consider alternate therapy or monitor for changes in Acenocoumarol therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Acetylsalicylic acid
Acetylsalicylic acid increases the effect of the sulfonylurea, tolbutamide.
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Atenolol
The beta-blocker, atenolol, may decrease symptoms of hypoglycemia.
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Bisoprolol
The beta-blocker, bisoprolol, may decrease symptoms of hypoglycemia.
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Bosentan
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Bosentan. Consider alternate therapy or monitor for changes in Bosentan therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Capecitabine
Capecitabine, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Capecitabine is initiated, discontinued or dose changed.
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Carvedilol
The beta-blocker, carvedilol, may decrease symptoms of hypoglycemia.
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Celecoxib
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Celecoxib. Consider alternate therapy or monitor for changes in Celecobix therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Chloramphenicol
Chloramphenicol may increase the effect of sulfonylurea, tolbutamide.
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Clofibrate
Clofibrate may increase the effect of sulfonylurea, tolbutamide.
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Dapsone
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Dapsone. Consider alternate therapy or monitor for changes in Dapsone therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Delavirdine
Delavirdine, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Delavirdine is initiated, discontinued or dose changed.
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Digoxin
Tolbutamide increases the effect of digoxin
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Esmolol
The beta-blocker, esmolol, may decrease symptoms of hypoglycemia.
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Floxuridine
Floxuridine, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Floxuridine is initiated, discontinued or dose changed.
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Fluconazole
Fluconazole, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Fluconazole therapeutic and adverse effects if Delavirdine is initiated, discontinued or dose changed.
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Fluorouracil
Fluorouracil, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Fluorouracil is initiated, discontinued or dose changed.
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Fluoxetine
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Fluoxetine. Consider alternate therapy or monitor for changes in Fluoxetine therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Flurbiprofen
Flurbiprofen, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Flurbiprofen is initiated, discontinued or dose changed.
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Fosphenytoin
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Fosphenytoin. Consider alternate therapy or monitor for changes in Fosphenytoin therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Gemfibrozil
Gemfibrozil, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Gemfibrozil is initiated, discontinued or dose changed.
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Glimepiride
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Glimepiride. Consider alternate therapy or monitor for changes in Glimepiride therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Glipizide
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Glipizide. Consider alternate therapy or monitor for changes in Glipizide therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Ibuprofen
Ibuprofen, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Ibuprofen is initiated, discontinued or dose changed.
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Indomethacin
Indomethacin, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Indomethacin is initiated, discontinued or dose changed.
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Ketamine
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Ketamine. Consider alternate therapy or monitor for changes in Ketamine therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Ketoconazole
Ketoconazole, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Ketoconazole is initiated, discontinued or dose changed.
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Labetalol
The beta-blocker, labetalol, may decrease symptoms of hypoglycemia.
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Losartan
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Losartan. Consider alternate therapy or monitor for changes in Losartan therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Lumiracoxib
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Lumiracoxib. Consider alternate therapy or monitor for changes in Lumiracoxib therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Mefenamic acid
Mefanamic acid, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Mefanamic acid is initiated, discontinued or dose changed.
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Mestranol
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Mestranol. Consider alternate therapy or monitor for changes in Mestranol therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Metoprolol
The beta-blocker, metoprolol, may decrease symptoms of hypoglycemia.
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Miconazole
Miconazole, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Miconazole is initiated, discontinued or dose changed.
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Montelukast
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Montelukast. Consider alternate therapy or monitor for changes in Montelukast therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Nadolol
The beta-blocker, nadolol, may decrease symptoms of hypoglycemia.
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Nateglinide
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Nateglinide. Consider alternate therapy or monitor for changes in Nateglinide therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Nicardipine
Nicardipine, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Nicardipine is initiated, discontinued or dose changed.
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Oxprenolol
The beta-blocker, oxprenolol, may decrease symptoms of hypoglycemia.
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Paclitaxel
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Paclitaxel. Consider alternate therapy or monitor for changes in Paclitaxel therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Phenylbutazone
Phenylbutazone increases the effect of the hypoglycemic agent
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Phenytoin
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Phenytoin. Consider alternate therapy or monitor for changes in Phenytoin therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Pindolol
The beta-blocker, pindolol, may decrease symptoms of hypoglycemia.
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Piroxicam
Piroxicam, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Piroxicam is initiated, discontinued or dose changed.
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Propranolol
The beta-blocker, propranolol, may decrease symptoms of hypoglycemia.
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Rifampicin
Rifampin may decrease the effect of sulfonylurea, tolbutamide.
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Sitaxentan
Sitaxsentan, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tolbutamide, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in Tolbutamide therapeutic and adverse effects if Sitaxsentan is initiated, discontinued or dose changed.
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Somatropin recombinant
Somatropin may antagonize the hypoglycemic effect of Tolbutamide. Dose adjustments of Tolbutamide may be required.
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Sulfadiazine
Tolbutamide and Sulfadiazine are strong CYP2C9 inhibitors and substrates. Decreased metabolism and clearance of both agents may occur during concomitant therapy. Consider alternate therpy or monitor for changes in the therapeutic and adverse effects of both agents if concomitant therapy is initiated, discontinued or dose(s) changed.
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Sulfamethoxazole
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Sulfamethoxazole. Consider alternate therapy or monitor for changes in Sulfamethoxazole therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Sulfinpyrazone
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Sulfinpyrazone. Consider alternate therapy or monitor for changes in Sulfinpyrazone therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Sulfisoxazole
Tolbutamide and Sulfisoxazole are strong CYP2C9 inhibitors and substrates. Decreased metabolism and clearance of both agents may occur during concomitant therapy. Consider alternate therpy or monitor for changes in the therapeutic and adverse effects of both agents if concomitant therapy is initiated, discontinued or dose(s) changed.
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Tamoxifen
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Tamoxifen. Consider alternate therapy or monitor for changes in Tamoxifen therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Timolol
The beta-blocker, timolol, may decrease symptoms of hypoglycemia.
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Torasemide
Tolbutamide, a strong CYP2C9 inhibitor, may increase the serum concentration of Torasemide, a CYP2C9 substrate, by decreasing its metabolism and clearance. Consider alternate therapy or monitor for changes in the therapeutic and adverse effects of Torasemide if Tolbutamide is initiated, discontinued or dose changed.
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Trimethoprim
The strong CYP2C9 inhibitor, Tolbutamide, may decrease the metabolism and clearance of Trimethoprim, a CYP2C9 substrate. Consider alternate therapy or monitor for changes in therapeutic and adverse effects of Trimethoprim if Tolbutamide is initiated, discontinued or dose changed.
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Voriconazole
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Voriconazole. Consider alternate therapy or monitor for changes in Voriconazole therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
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Warfarin
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism of warfarin. Consider alternate therapy or monitor for changes in the therapeutic and adverse effects of warfarin if tolbutamide is initiated, discontinued or dose changed.
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Zafirlukast
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of zafirlukast. Consider alternate therapy or monitor for changes in zafirlukast therapeutic and adverse effects if tolbutamide is initiated, discontinued or dose changed.
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Zopiclone
Tolbutamide, a strong CYP2C9 inhibitor, may decrease the metabolism and clearance of Zopiclone. Consider alternate therapy or monitor for changes in Zopiclone therapeutic and adverse effects if Tolbutamide is initiated, discontinued or dose changed.
Liều Lượng & Cách Dùng :
Tablet - Oral - 500 mg
Dữ Kiện Thương Mại
Giá thị trường
-
Giá bán buôn : USD >0.4
Đơn vị tính : tablet
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