Related Experiment Video
Updated: Jul 15, 2026
05:46
Rapid Screening of HIV Reverse Transcriptase and Integrase Inhibitors
Published on: April 9, 2014
Efavirenz: a review
Saskia M E Vrouenraets1, Ferdinand W N M Wit, Jacqueline van Tongeren
1IATEC, Pietersbergweg 9, 1105 BM Amsterdam, The Netherlands. s.m.vrouenraets@amc.uva.nl
Expert Opinion on Pharmacotherapy
|April 12, 2007
Summary
Efavirenz is a preferred first-line HIV-1 treatment due to its efficacy and once-daily dosing. However, suboptimal adherence can lead to viral resistance and neuropsychiatric side effects.
Area of Science:
- Pharmacology
- Infectious Diseases
- Virology
Background:
- Efavirenz is a non-nucleoside reverse transcriptase inhibitor recommended in combination regimens for HIV-1 treatment.
- Efavirenz-based regimens demonstrate significant antiretroviral efficacy in clinical trials.
- Its long plasma half-life enables once-daily dosing, a key factor in treatment adherence.
Purpose of the Study:
- To review recent pharmacological and clinical data on efavirenz.
- To explain the rationale behind efavirenz's inclusion in preferred HIV-1 treatment regimens.
Main Methods:
- Literature review of pharmacological and clinical data.
- Analysis of efavirenz's efficacy, pharmacokinetics, and side effect profile.
Main Results:
- Efavirenz-based regimens show good antiretroviral efficacy.
- Long half-life allows once-daily dosing but poses a risk of resistance with poor adherence.
- Neuropsychiatric symptoms are common side effects, sometimes persisting long-term.
Conclusions:
- Efavirenz's efficacy and dosing convenience contribute to its status as a preferred HIV-1 treatment.
- Understanding resistance patterns and side effect management is crucial for optimal efavirenz use.
- Recent data support efavirenz's role in current HIV-1 therapy guidelines.
More Related Videos
Related Concept Videos
01:22Antiviral Nucleoside Inhibitors
Antiviral Nucleoside InhibitorsAntiviral nucleoside inhibitors are structural analogs of natural nucleosides that interfere with viral DNA or RNA synthesis. These compounds selectively target viral polymerases due to their resemblance to host nucleosides, thereby disrupting viral genome replication.Mechanism of Acyclovir ActionAcyclovir is a guanosine analog with a three-carbon acyclic side chain. It selectively targets herpes simplex virus type 1 (HSV-1), herpes simplex virus type 2 (HSV-2),...
02:33Retroviruses
Retroviruses and retrotransposons both insert copies of their genetic elements into the genome of the host cell. Thus, the viral genes are passed on when the host genome is replicated or translated. A typical retroviral DNA sequence contains 3-4 genes that encode the different proteins required for its structural assembly and function as a molecular parasite. This DNA is transcribed into a single mRNA, which is very similar in structure to conventional mRNAs, i.e., it is capped at the 5’...
01:29Subviral Agents
Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
01:25Inhibitors 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...
01:21Antiprotozoal Agents
Leishmaniasis is a widespread parasitic disease caused by several Leishmania species. It affects millions of people each year and remains a major public health problem in endemic regions. First-line treatment relies on pentavalent antimonials, including meglumine antimoniate and sodium stibogluconate. Even so, how these drugs work has not been fully clear, especially their interaction with parasite-specific biochemical pathways. One key target is trypanothione reductase (TR), an enzyme that...
01:30Inhibitors 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...