Oseltamivir for influenza

    Insights

    Oseltamivir (Tamiflu) is an oral antiviral for influenza treatment and prophylaxis. This review examines its efficacy and safety, discussing its role in managing influenza infections.

    Area of Science:

    • Virology
    • Pharmacology
    • Public Health

    Background:

    • Oseltamivir (Tamiflu) is a novel oral antiviral medication.
    • It targets the neuraminidase enzyme of the influenza virus.
    • Oseltamivir has received EU-wide licensing for influenza treatment and prophylaxis.

    Purpose of the Study:

    • To review the efficacy and safety of oseltamivir.
    • To discuss the role of oseltamivir in influenza management.
    • To compare oseltamivir with zanamivir, another neuraminidase inhibitor.

    Main Methods:

    • Literature review of clinical studies on oseltamivir.
    • Analysis of efficacy data for treatment and prophylaxis.
    • Assessment of safety profiles and adverse events.

    Main Results:

    • Oseltamivir is licensed for early treatment of influenza and post-exposure prophylaxis.
    • It is the second neuraminidase inhibitor available in the UK, following zanamivir.
    • Previous concerns regarding zanamivir's efficacy in preventing serious complications are noted.

    Conclusions:

    • Oseltamivir offers a new oral option for influenza management.
    • Further discussion on its clinical utility and comparison with existing treatments is warranted.
    • The review aims to inform healthcare professionals about oseltamivir's place in influenza control.

    Related Concept Videos

    Influenza01:27

    Influenza

    Influenza is an acute, highly communicable viral disease that affects the respiratory tract and is responsible for seasonal epidemics worldwide. Influenza A is the most prevalent type associated with widespread outbreaks and is subtyped based on two surface glycoproteins: hemagglutinin (H) and neuraminidase (N), as in H1N1. These glycoproteins are essential for viral infectivity, transmission, and immune recognition. Transmission occurs primarily through respiratory droplets and contaminated...
    Inhibitors Of Virion Release01:25

    Inhibitors Of Virion Release

    Viral replication and dissemination rely on efficient mechanisms for host cell entry, genome replication, assembly, and release. Influenza viruses, such as types A and B, are negative-sense single-stranded RNA viruses with a segmented genome, that depend on two critical surface glycoproteins to carry out these processes: hemagglutinin (HA) and neuraminidase (NA). HA initiates infection by binding to sialic acid residues on the surface of host epithelial cells, facilitating receptor-mediated...
    Respiratory Syncytial Virus Disease01:29

    Respiratory Syncytial Virus Disease

    Human respiratory syncytial virus (RSV) is a widespread pathogen that primarily targets infants and young children but also poses a serious health risk to elderly and immunocompromised individuals. Belonging to the Pneumoviridae family, RSV is a negative-sense, single-stranded RNA virus within the Pneumovirus genus. Its global health burden is significant, with millions of cases annually resulting in hospitalizations and mortality, particularly in resource-limited settings. Although most...
    Inhibitors of Viral Protein Synthesis01:30

    Inhibitors of Viral Protein Synthesis

    Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
    Leaky Scanning02:28

    Leaky Scanning

    During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R stands for...
    Acute Pharyngitis01:30

    Acute Pharyngitis

    Introduction
    Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
    Classification
    Acute pharyngitis can be categorized based on its underlying cause: