K777 is a potent, orally active and irreversible inhibitor of cysteine protease. K777 is a potent CYP3A4 inhibitor (IC50= 60 nM). K777 is also a selective CCR4 antagonist featuring the potent chemotaxis inhibition. K777 irreversibly inhibits Cruzain, which is the major cysteine protease of Trypansoma cruzi, and cathepsins B and L. K777 targets cathepsin-mediated cell entry and wxibits a broad-spectrum antiviral activity. K777 inhibits EBOV and SARS-CoV pseudovirus entry with IC50 values of 0.87 nM and 0.68 nM, respectively.

Ambroxol (NA-872) is a secretolytic agent used in the treatment of respiratory diseases associated with viscid or excessive mucus. It is the active ingredient of Mucosolvan, Lasolvan or Mucoangin. The substance is a mucoactive drug with several properties including secretolytic and secretomotoric actions that restore the physiological clearance mechanisms of the respiratory tract which play an important role in the body's natural defense mechanisms. It stimulates synthesis and release of surfactant by type II pneumocytes. Surfactants act as an anti-glue factor by reducing the adhesion of mucus to the bronchial wall, in improving its transport and in providing protection against infection and irritating agents.

Clomethiazole (Distraneurin) is an orally active GABAA agonist and it is an anticonvulsant agent. It also has the potential for treating convulsive status epilepticus. Chlormethiazole inhibits cytochrome P450 isoforms: CYP2A6 and CYP2E1 in human liver microsomes.

Mefentrifluconazole is a potent, selective and orally active fungal CYP51 (Kd= 0.5 nM) inhibitor, but shows less inhibitory activity on human aromatase (IC50=0.92 μM). Mefentrifluconazole is a novel azole derivative and used as an agrochemical broad-spectrum antifungal agent.

Cedrol is a cedrane sesquiterpenoid and a tertiary alcohol,Cedrol inhibits the cytochrome P450 (CYP) isoforms CYP2B6 and CYP3A4 (Kis = 0.9 and 3.4 μM, respectively)