Raltegravir Salt is a potent human immunodeficiency virus (HIV) integrase inhibitor and a novel anti-AIDS drug.

Ravidasvir(PPI-668) is a NS5A Inhibitor.

Relebactam is a diazabicyclooctane inhibitor with activity against a wide spectrum of β-lactamases, including class A (extended-spectrum β-lactamases [ESBLs] and KPC) and class C (AmpC) enzymes.

Retapamulin is a topical antibiotic, which binds to both E. coli and S. aureus ribosomes with similar potencies with Kd of 3 nM.

Ribavirin is a guanosine analog with antiviral properties against DNA and RNA viruses, including respiratory syncytial virus, hepatitis C, and influenza.

Rifabutin (Mycobutin)

Rilpivirine(R 278474, TMC 278) is a type of anti-HIV medicine called a non-nucleoside reverse transcriptase inhibitor (NNRTI).

Ritonavir is an inhibitor of HIV protease used to treat HIV infection and AIDS,showed potent activity against COVID-19(SARS-COV-2) .

RSV604 is a novel inhibitor of respiratory syncytial virus replication(EC50=0.86 uM); a putative RSV nucleoprotein(N) inhibitor in phase 2 clinical trials.

Saquinavir(Ro 31-8959) is an HIV Protease inhibitor used in antiretroviral therapy.

Saquinavir(Ro 31-8959) is an HIV Protease inhibitor used in antiretroviral therapy.

SB9200(Inarigivir soproxil) is a novel agonist of innate immunity, shows potent antiviral activity against resistant HCV variants.

Selective reverse transcriptase inhibitor. Exhibits 100-fold selectivity for HIV reverse transcriptase over DNA polymerase α.

Simeprevir (TMC 435350) is a potent inhibitor of HCV NS3/4A protease (Ki = 0.36 nM) and viral replication (replicon EC50 = 7.8 nM).

Solithromycin is a novel ketolide antibiotic.

SPK-601(LMV-601) is a potent phosphatidylcholine-specific phospholipase C (PC-PLC) inhibitor; SPK-601 is useful antimicrobial agent.

Sutezolid (PNU-100480) is an oxazolidinone antimicrobial being developed for the treatment of tuberculosis.

T 705(Favipiravir) is a RNA-directed RNA polymerase NS5B inhibitor.T 705(Favipiravir) is useful for Antiviral agents.

TAK-779 is a potent and selective nonpeptide antagonist of CCR5 and CXCR3, with a Ki of 1.1 nM for CCR5, and effectively and selectively inhibits R5 HIV-1, with EC50 and EC90 of 1.2 nM and 5.7 nM, respectively, in MAGI-CCR5 cells.

Tamoxifen(ICI-46474) is an antagonist of the estrogen receptor in breast tissue via its active metabolite, hydroxytamoxifen,showed potent activity against COVID-19(SARS-COV-2) with EC50 MERS-COV(10.117), SARS-COV(11.696).

TBA-354 is a potent anti-tuberculosis compound; maintains activity against Mycobacterium tuberculosis H37Rv isogenic monoresistant strains and clinical drug-sensitive and drug-resistant isolates.

TDZD-8 is a non-ATP competitive GSK-3β inhibitor with IC50 of 2 μM.