Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Monoisotopic mass
221.988131458
InChI
InChI=1S/C4H6N4O3S2/c1-2(9)6-3-7-8-4(12-3)13(5,10)11/h1H3,(H2,5,10,11)(H,6,7,9)
InChI Key
InChIKey=BZKPWHYZMXOIDC-UHFFFAOYSA-N
IUPAC Name
N-(5-sulfamoyl-1,3,4-thiadiazol-2-yl)acetamide
Traditional IUPAC Name
acetazolamide
SMILES
CC(=O)NC1=NN=C(S1)S(N)(=O)=O
Độ hòa tan
980 mg/L (at 30 °C)
pKa (strongest acidic)
6.93
pKa (Strongest Basic)
-3.3
Refractivity
47.36 m3·mol-1
Dược Lực Học :
Acetazolamide is a potent carbonic anhydrase inhibitor, effective in the control of fluid secretion, in the treatment of certain convulsive disorders and in the promotion of diuresis in instances of abnormal fluid retention. Acetazolamide is not a mercurial diuretic. Rather, it is a nonbacteriostatic sulfonamide possessing a chemical structure and pharmacological activity distinctly different from the bacteriostatic sulfonamides.
Cơ Chế Tác Dụng :
One of the carbonic anhydrase inhibitors that is sometimes effective against absence seizures. It is sometimes useful also as an adjunct in the treatment of tonic-clonic, myoclonic, and atonic seizures, particularly in women whose seizures occur or are exacerbated at specific times in the menstrual cycle. However, its usefulness is transient often because of rapid development of tolerance. Its antiepileptic effect may be due to its inhibitory effect on brain carbonic anhydrase, which leads to an increased transneuronal chloride gradient, increased chloride current, and increased inhibition. (From Smith and Reynard, Textbook of Pharmacology, 1991, p337)
The anticonvulsant activity of Acetazolamide may depend on a direct inhibition of carbonic anhydrase in the CNS, which decreases carbon dioxide tension in the pulmonary alveoli, thus increasing arterial oxygen tension. The diuretic effect depends on the inhibition of carbonic anhydrase, causing a reduction in the availability of hydrogen ions for active transport in the renal tubule lumen. This leads to alkaline urine and an increase in the excretion of bicarbonate, sodium, potassium, and water.
Dược Động Học :
▧ Protein binding :
98%
▧ Half Life :
3 to 9 hours
Chỉ Định :
For adjunctive treatment of: edema due to congestive heart failure; drug-induced edema; centrencephalic epilepsies; chronic simple (open-angle) glaucoma
Tương Tác Thuốc :
-
Acetylsalicylic acid
Acetylsalicylic acid at high dose increases the effect of the carbonic anhydrase inhibitor, acetazolamide.
-
Bismuth Subsalicylate
The salicylate, bismuth subsalicylate, at high dose increases the effect of the carbonic anhydrase inhibitor, acetazolamide.
-
Brinzolamide
As both brinzolamide and acetazolamide are carbonic anhydrase inhibitors, there is an increased risk of adverse effects.The development of acid-base disorders with concurrent use of ophthalmic and oral carbonic anhydrase inhibitors has been reported. Avoid concurrent use of different carbonic anhydrase inhibitors when possible.
-
Cyclosporine
Acetazolamide may increase the effect and toxicity of cyclosporine.
-
Memantine
Possible increased levels of memantine
-
Tobramycin
Increased risk of nephrotoxicity
-
Topiramate
Additive renal carbonic anhydrase inhibition may occur increasing the risk of crystaluria and renal calculi. Increased risk of nephrolithiasis. Consider altnerate therapy.
-
Treprostinil
Additive hypotensive effect. Monitor antihypertensive therapy during concomitant use.
-
Triprolidine
The CNS depressants, Triprolidine and Acetazolamide, may increase adverse/toxic effects due to additivity. Monitor for increased CNS depressant effects during concomitant therapy.
Liều Lượng & Cách Dùng :
Tablet - Oral
Dữ Kiện Thương Mại
Nhà Sản Xuất
-
Sản phẩm biệt dược : Acemit
-
Sản phẩm biệt dược : Acemox
-
Sản phẩm biệt dược : Acetak
-
Sản phẩm biệt dược : Acetamide
-
Sản phẩm biệt dược : Acetazolamax
-
Sản phẩm biệt dược : Avva
-
Sản phẩm biệt dược : Azm
-
Sản phẩm biệt dược : Azol
-
Sản phẩm biệt dược : Azomid
-
Sản phẩm biệt dược : Carbinib
-
Sản phẩm biệt dược : Défiltran
-
Sản phẩm biệt dược : Defiltran
-
Sản phẩm biệt dược : Diabo
-
Sản phẩm biệt dược : Diacarb
-
Sản phẩm biệt dược : Diamox
-
Sản phẩm biệt dược : Diamox Depot
-
Sản phẩm biệt dược : Diamox Sequels
-
Sản phẩm biệt dược : Diazomid
-
Sản phẩm biệt dược : Diluran
-
Sản phẩm biệt dược : Diuramid
-
Sản phẩm biệt dược : Edemox
-
Sản phẩm biệt dược : Glaumox
-
Sản phẩm biệt dược : Glaupax
-
Sản phẩm biệt dược : Glupax
-
Sản phẩm biệt dược : Huma-Zolamide
-
Sản phẩm biệt dược : Iopar-SR
-
Sản phẩm biệt dược : Medene
-
Sản phẩm biệt dược : Oculten
-
Sản phẩm biệt dược : Ödemin
-
Sản phẩm biệt dược : Uramox
-
Sản phẩm biệt dược : Zolmide
Tài Liệu Tham Khảo Thêm
National Drug Code Directory