Galantamine is a competitive and reversible cholinesterase (AChE) inhibitor and is used for the treatment of mild to moderate Alzheimer's disease and various other memory impairments.
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HazMat fee for 500 gram (Estimated)
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USD 0.00
Limited Quantity
USD 15-60
Inaccessible (Haz class 6.1), Domestic
USD 80+
Inaccessible (Haz class 6.1), International
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Accessible (Haz class 3, 4, 5 or 8), International
Galanthaminone (GAL) is a competitive and reversible cholinesterase (AChE) inhibitor; is used for the treatment of mild to moderate Alzheimer's disease and various other memory impairments[3]. The inhibition of acetylcholinesterase activity was closely correlated with the pharmacokinetics of galanthamine, a median maximal value of 53% being achieved by applying 10 mg galanthamine intravenously. Analysis of in vitro and ex vivo concentration responses revealed no differences, indicating that no metabolites of galanthamine exert additional inhibition of acetylcholinesterase activity[4]. In vivo, the maximal 36-55% inhibition of AChE was approached 30 min after oral administration of 10 mg GAL. The duration of the catalytic inhibition corresponded to an elimination half-life of approximately 5-7 h[5]. Galanthamine plasma peaks (1.24 micrograms/ml after subcutaneous and 1.15 micrograms/ml after oral doses) were reached 2 h following administration, the t1/2(beta) values being 5.70 and 5.26 h, respectively. An almost complete urinary recovery of galanthamine and its metabolites was obtained within 72 h. The plasma AUC, Cmax, tmax and ka suggest that the subcutaneous and oral Nivalin formulations are bioequivalent[6].
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