Unlike cimetidine, the first H2 antagonist,<unk>  has a minimal effect on the cytochrome P450 enzyme system, and does not appear to interact with as many drugs as other medications in its class. Some exceptions include antiretrovirals such as atazanavir, chemotherapeutics such as doxorubicin, and antifungal medications such as itraconazole.
Famotidine
Ranitidine
Pantoprazole
Rabeprazole
Metoclopramide
Omeprazole
Lansoprazole
Cimetidine