Carbovir is a nucleoside reverse transcriptase inhibitor analog of guanosine. Carbovir decreases HIV viral loads, retards or prevents the damage to the immune system, and reduces the risk of developing AIDS. Carbovir Triphosphate belongs to the class of organic compounds known as nucleoside and nucleotide analogues. These are analogues of nucleosides and nucleotides. Carbovir interferes with the enzyme HIV uses to manufacture new viral particles within an infected cell, and is primarily metabolized to the 5'-triphosphate of Carbovir (CBV-TP) to concentrations sufficient to inhibit HIV reverse transcriptase.

Delavirdine is a nonnucleoside reverse transcriptase inhibitor (NNRTI). Delavirdine binds directly to reverse transcriptase (RT) and blocks RNA-dependent and DNA-dependent DNA polymerase activities. Delavirdine does not compete with template:primer or deoxynucleoside triphosphates. HIV-2 RT and human cellular DNA polymerases alfa, gamma, or delta are not inhibited by delavirdine. In addition, HIV-1 group O, a group of highly divergent strains that are uncommon in North America, may not be inhibited by delavirdine. Delavirdine is marketed under the trade name Rescriptor, indicated for the treatment of HIV-1 infection in combination with at least 2 other active antiretroviral agents when therapy is warranted. .

Indinavir is an antiretroviral drug for the treatment of HIV infection. Indinavir is a protease inhibitor with activity against Human Immunodeficiency Virus Type 1 (HIV-1). Protease inhibitors block the part of HIV called protease. HIV-1 protease is an enzyme required for the proteolytic cleavage of the viral polyprotein precursors into the individual functional proteins found in infectious HIV-1. Indinavir binds to the protease active site and inhibits the activity of the enzyme. This inhibition prevents cleavage of the viral polyproteins resulting in the formation of immature non-infectious viral particles. Protease inhibitors are almost always used in combination with at least two other anti-HIV drugs.

Indinavir is an antiretroviral drug for the treatment of HIV infection. Indinavir is a protease inhibitor with activity against Human Immunodeficiency Virus Type 1 (HIV-1). Protease inhibitors block the part of HIV called protease. HIV-1 protease is an enzyme required for the proteolytic cleavage of the viral polyprotein precursors into the individual functional proteins found in infectious HIV-1. Indinavir binds to the protease active site and inhibits the activity of the enzyme. This inhibition prevents cleavage of the viral polyproteins resulting in the formation of immature non-infectious viral particles. Protease inhibitors are almost always used in combination with at least two other anti-HIV drugs.

Saquinavir (brand names Invirase and Fortovase) is an antiretroviral drug used together with other medications to treat or prevent HIV/AIDS. Saquinavir is an inhibitor of HIV protease. HIV protease is an enzyme required for the proteolytic cleavage of viral polyprotein precursors into individual functional proteins found in infectious HIV. Saquinavir is a peptide-like substrate analog that binds to the protease active site and inhibits the activity of the enzyme. Saquinavir inhibition prevents cleavage of the viral polyproteins resulting in the formation of immature noninfectious virus particles. The most frequent adverse events with saquinavir in either formulation are mild gastrointestinal symptoms, including diarrhea, nausea, loose stools & abdominal discomfort. Invirase is better tolerated than Fortovase.

Enisamium (4-(benzylcarbamoyl)-1-methylpyridinium iodide) is an isonicotinic acid derivative, that used as an antiviral agent in Russia. Enisamium suppresses the effect of influenza viruses and other pathogens of acute respiratory viral infections due to a direct inhibitory effect on the penetration of viruses through the cell membrane. Enisamium has interferonogenic properties, promotes an increase in the concentration of endogenous interferon (interferon alfa and gamma) in blood plasma by 3-4 times.

Enviroxime (LY 122772 or 2-amino-1-(isopropyl sulphonyl)-6-benzimidazole phenyl ketone oxime) is an benzimidazole antiviral agent. Enviroxime inhibits the replication of rhinoviruses and enteroviruses, additionally it impedes the replication of the hepatitis C virus. Enviroxime targets the 3A coding region of rhinovirus and poliovirus. Enviroxime is able to inhibit host phosphatidylinositol 4-kinase III.

Beclabuvir (previously known as BMS-791325), a potent, non-nucleoside inhibitor of the HCV NS5B RNA polymerase. In combination with daclatasvir and asunaprevir drug participates in clinical trials phase III for patients infected with HCV genotype 1, which is the most common genotype worldwide. Recently published data has shown that this combination achieved very high rates of viral eradication.

Tromantadine HCl under brand name Virumerz is used to treat the herpes simplex virus by inhibiting the cellular process such as glycoprotein processing, which occurs after the synthesis of the fusion protein but before its expression on the cell surface.

Atevirdine (U-87201E) is a nonnucleoside inhibitor of HIV-1 reverse transcriptase, that has been studied for the treatment of HIV infection. Atevirdine mesylate is the first-generation member of the bisheteroarylpiperazine class of nonnucleoside inhibitors, which inhibits reverse transcriptase noncompetitively by binding near the catalytic site. The safety, tolerability, and antiviral activity of atevirdine were studied in phase I/II clinical trial. Rash was the most common adverse event, with a grade 3 or 4 rash. No significant change from baseline in HIV-1 plasma RNA mean copy number was detected.