Vonoprazan Fumarate (TAK438) , a novel potassium-competitive acid blocker, inhibits gastric acid secretion. Vonoprazan Fumarate (TAK438) inhibited H+,K+-ATPase activity in porcine gastric microsomes with IC50 value of 19 nM at pH 6.5.

EN6-mediated ATP6V1A modification decouples the v-ATPase from the Rags, leading to inhibition of mTORC1 signaling, increased lysosomal acidification and activation of autophagy. EN6 clears TDP-43 aggregates, a causative agent in frontotemporal dementia, in a lysosome-dependent manner. EN6 is a small-molecule in vivo activator of autophagy that covalently targets cysteine 277 in the ATP6V1A subunit of the lysosomal the vacuolar H+ ATPase (v-ATPase).

(R)-Lansoprazole (T 168390) is the R-isomer of lansoprazole and a substituted benzimidazole prodrug with selective and irreversible proton pump inhibitor activity.Lansoprazole (AG 1749) is a potent brain penetrant neutral sphingomyelinase (N-SMase) inhibitor (exosome inhibitor)

Pantoprazole sodium (Pantecta) is the sodium salt form of a substituted benzimidazole with proton pump inhibitor activity. Pantoprazole sodium is a lipophilic, weak base that crosses the parietal cell membrane and enters the acidic parietal cell canaliculus where it becomes protonated, producing the active metabolite sulfenamide, which forms an irreversible covalent bond with two sites of the H+/K+-ATPase enzyme located on the gastric parietal cell, thereby inhibiting both basal and stimulated gastric acid production.

Tenatoprazole (TU-199), a prodrug of the proton pump inhibitor (PPI) class, can inhibit proton transport (IC50: 3.2 μM).