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Ensitrelvir is being studied for its potential use as post-exposure prophylaxis (PEP) after SARS-CoV-2 exposure. [19] [20] The SCORPIO-PEP trial is a global Phase 3 trial that will evaluate the safety and efficacy of the drug in preventing symptomatic SARS-CoV-2 infection in household contacts of people who tested positive for COVID-19.
The general idea behind modern antiviral drug design is to identify viral proteins, or parts of proteins, that can be disabled. [11] [13] These "targets" should generally be as unlike any proteins or parts of proteins in humans as possible, to reduce the likelihood of side effects and toxicity. [8]
A drug combination targeting SARS-CoV-2, Paxlovid, was approved in December 2021 to treat COVID-19. [12] It is a combination of nirmatrelvir , a protease inhibitor targeted to the SARS-CoV-2 3C-like protease , and ritonavir, which inhibits the metabolism of nirmatrelvir, thereby prolonging its effect.
Nirmatrelvir/ritonavir is under investigation, so its side effects have yet to be fully evaluated and may not be completely known. [ 19 ] Other side effects of nirmatrelvir/ritonavir may include hypersensitivity reactions , liver toxicity , and development of HIV drug resistance in people with uncontrolled or undiagnosed HIV infection .
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 ...
[42] [43] Neuropsychiatric symptoms and body pain, followed by skin problems, were identified as the side effects most significantly reducing patient satisfaction on a drug review platform. [ 44 ] The US and EU package inserts for oseltamivir contain a warning of psychiatric effects observed in post-marketing surveillance.
The majority of people who use entecavir have little to no side effects. [13] The most common side effects include headache, fatigue, dizziness, and nausea. [3] Less common effects include trouble sleeping and gastrointestinal symptoms such as sour stomach, diarrhea, and vomiting. [14] Serious side effects from entecavir include lactic acidosis ...
It decreases the risk of one's getting symptomatic, but not asymptomatic influenza. The combination of diagnostic uncertainty, the risk for virus strain resistance, possible side effects and financial cost outweigh the small benefits of zanamivir for the prophylaxis and treatment of healthy individuals. [5]