MM3122 is a selective type II transmembrane serine protease (TMPRSS2) inhibitor, IC50 = 0.34 nM. MM3122 effectively blocks TMPRSS2, thereby inhibiting the entry of SARS-CoV-2 and MERS-CoV into human cells.

Prifinium bromide is a quaternary ammon antimuscarinic. It inhibits hyperkinesia of the digestive organs and urinary tract and has a spasmolytic action.

3,3-Dimethyl-1-butanol (DMB) is an orally active inhibitor of trimethylamine (TMA) and trimethylamine N-oxide (TMAO). 3,3-Dimethyl-1-butanol inhibits the signaling pathway of p65 NF-κB and TGF-β1/Smad3. 3,3-Dimethyl-1-butanol has potential applications in cardiovascular disease (CVD).