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Abstract:
The current status of antiviral therapy is reviewed, including discussion of older approaches together with more recently developed chemotherapy. Following the introduction dealing with pathophysiological aspects of virus disease, the different approaches to antiviral therapy are presented. The reasons for the slow progress in antiviral therapy are discussed. These include: 1. the necessity of intracellular penetration of drugs acting on viral replication; 2. the severe toxicity of most antiviral drugs; 3. the narrow antiviral spectrum of most of these agents; 4. the difficulty of making a rapid etiological diagnosis in view of the necessity of starting (specific?) treatment early in the course of the disease; 5. the difficult evaluation of beneficial as compared with deleterious effects of antiviral therapy. After a detailed review of clinically tested substances, including immunoglobulins, synthetic antiviral drugs (amantadine, nucleoside analogs, thiosemicarbazones and photodynamic dyes) and interferon, a guide concerning indications and application of specific antiviral therapy is presented. Although at present there are few indications, clinicians should be aware of the (present and future) possibilities of antiviral therapy.
Insights
This review covers antiviral therapies, discussing challenges like drug toxicity and diagnosis delays. It highlights current and future possibilities for effective antiviral treatments.
Area of Science:
- Virology
- Pharmacology
- Infectious Diseases
Background:
- Viral diseases pose significant health challenges.
- Antiviral therapy development has faced numerous obstacles.
- Understanding pathophysiological aspects is crucial for treatment.
Purpose of the Study:
- To review the current status of antiviral therapy.
- To discuss challenges hindering progress in antiviral drug development.
- To present a guide on the indications and application of antiviral treatments.
Main Methods:
- Comprehensive review of existing literature on antiviral therapies.
- Discussion of older and newer chemotherapy approaches.
- Analysis of clinically tested antiviral substances.
Main Results:
- Identified key challenges: intracellular penetration, drug toxicity, narrow spectrum, diagnostic delays, and evaluating treatment effects.
- Reviewed various antiviral agents including immunoglobulins, synthetic drugs (amantadine, nucleoside analogs), and interferon.
- Presented a guide for clinical indications and application of antiviral therapy.
Conclusions:
- Despite current limitations and few indications, antiviral therapy holds future potential.
- Clinicians must be aware of the evolving possibilities in antiviral treatment.
- Continued research is essential to overcome existing challenges in antiviral drug development.