Dược Lực Học : 
								
									selectively inhibits the metabolic enzyme cytochrome P450 3A4 (CYP), a liver enzyme responsible for the metabolism or breakdown of approximately half of currently marketed drugs. Studies indicate that AVI-4557 can successfully reduce the rate of metabolism when co-administered with certain therapeutic drugs, allowing greater and longer availability of the drug in the patient's system without an increase in toxicity.									
							
														
															
								 Cơ Chế Tác Dụng : 
								
									AVI-4557 is an oral antisense compound that selectively inhibits the metabolic enzyme cytochrome P450 3A4 (CYP), a liver enzyme responsible for the metabolism or breakdown of approximately half of currently marketed drugs. Studies indicate that AVI-4557 can successfully reduce the rate of metabolism for certain drugs, therefore allowing greater and longer availability of the drug in the patient's system through a decrease in clearance and an increase in maximal blood concentration (Cmax). AVI-4557 is therefore indicated to limit toxicity for patients receiving highly-toxic therapeutic drugs for treatment of anxiety, cancer, and a number of other serious conditions.								
								
									selectively inhibits the metabolic enzyme cytochrome P450 3A4 (CYP), a liver enzyme responsible for the metabolism or breakdown of approximately half of currently marketed drugs. S								
							
														
														
														
							
																					
								 Chỉ Định : 
								
									Investigated for use/treatment in adverse effects (chemotherapy) and adverse effects (drug).