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Antiviral drugs are a class of medication used for treating viral infections. [1] Most antivirals target specific viruses, while a broad-spectrum antiviral is effective against a wide range of viruses. [2] Antiviral drugs are a class of antimicrobials, a larger group which also includes antibiotic (also termed antibacterial), antifungal and ...
COVID-19. Pfizer. 3C-like protease inhibitor (Nirmatrelvir) / inhibition of metabolism of nirmatrelvir (ritonavir) Nevirapine. HIV. non- nucleoside reverse transcriptase inhibitor. Nitazoxanide. Broad-spectrum antiviral.
Antiviral drugs directly target the viruses responsible for influenza infections. Generally, anti-viral drugs work optimally when taken within a few days of the onset of symptoms. Certain drugs are used prophylactically, that is they are used in uninfected individuals to guard against infection. [medical citation needed]
Here’s what to know. Hanh Truong. If you recently tested positive for COVID-19, you may be eligible for antiviral treatments to help reduce your infection. Earlier this year, when the omicron ...
Oseltamivir, sold under the brand name Tamiflu, is an antiviral medication used to treat and prevent influenza A and influenza B, viruses that cause the flu. [5] Many medical organizations recommend it in people who have complications or are at high risk of complications within 48 hours of first symptoms of infection. [6]
Aciclovir. Aciclovir, also known as acyclovir, [4] is an antiviral medication. [5] It is primarily used for the treatment of herpes simplex virus infections, chickenpox, and shingles. [6] Other uses include prevention of cytomegalovirus infections following transplant and severe complications of Epstein–Barr virus infection.
In May 2022, Pfizer suggested repeating the treatment, but the FDA said there was no evidence of benefit. In June 2022, a US case report of ten people with rebound COVID‑19 had found viral load during relapse was comparable to levels during an initial infection, and high enough to cause secondary transmission.
Nitazoxanide, sold under the brand name Alinia among others, is a broad-spectrum antiparasitic and broad-spectrum antiviral medication that is used in medicine for the treatment of various helminthic, protozoal, and viral infections. [4] [5] [6] It is indicated for the treatment of infection by Cryptosporidium parvum and Giardia lamblia in ...