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List of Antiviral Drugs Antiviral Use Manufacturer Component Type Year approved Abacavir: HIV: ViiV Healthcare: Nucleoside analogue reverse transcriptase inhibitor (NRTI) 1998 Acyclovir (Aciclovir) Herpes Simplex, chickenpox, [2] varicella zoster virus: GSK: guanosine analogue RTI 1981 Adefovir: Hepatitis B [3] Gilead Sciences RTI 2002 , 2003 ...
The DAA drugs against hepatitis C are taken orally, as tablets, for 8 to 12 weeks. [56] The treatment depends on the type or types of hepatitis C virus that are causing the infection. [57] Both during and at the end of treatment, blood tests are used to monitor the effectiveness of the treatment and subsequent cure. [56]
Some of the most well known are antiviral drugs widely used to treat HIV/AIDS, hepatitis C and COVID-19. These protease inhibitors prevent viral replication by selectively binding to viral proteases (e.g. HIV-1 protease ) and blocking proteolytic cleavage of protein precursors that are necessary for the production of infectious viral particles .
Hepatitis A is an infectious disease of the liver caused by Hepatovirus A (HAV); [7] it is a type of viral hepatitis. [8] Many cases have few or no symptoms, especially in the young. [ 1 ] The time between infection and symptoms, in those who develop them, is two–six weeks. [ 2 ]
[10] [11] A virus with Q151M complexed with the other four mutations becomes highly resistant to the above drugs, and is additionally resistant to lamivudine (3TC) and emtricitabine (FTC). [11] [12] The second mechanism is the excision or the hydrolytic removal of the incorporated drug or pyrophosphorolysis. This is a reverse of the polymerase ...
The HCV genome. NS5A in the bottom row, second from the right. Nonstructural protein 5A (NS5A) inhibitors are direct acting antiviral agents (DAAs) that target viral proteins, and their development was a culmination of increased understanding of the viral life cycle combined with advances in drug discovery technology.
These agents can be used against hepatitis B virus, hepatitis C virus, herpes simplex, and HIV.Once they are phosphorylated, they work as antimetabolites by being similar enough to nucleotides to be incorporated into growing DNA strands; but they act as chain terminators and stop viral DNA polymerase.
Tenofovir disoproxil is a pro-drug form of tenofovir phosphonate, which is liberated intracellularly and converted to tenofovir disphophate. [32] It is marketed by Gilead Sciences (as the fumarate, abbreviated TDF). [33] Tenofovir disoproxil is also available in pills which combine a number of antiviral drugs into a single dose.