Examples of H2 blockers available over the counter include: Cimetidine (Tagamet HB) Famotidine (Pepcid AC, Zantac 360) Nizatidine (Axid, Axid AR) Note: The H2 blocker ranitidine, which was in ...

There are several types of OTC medications for heartburn and acid reflux, including antacids, proton pump inhibitors (PPIs), and H2 blockers. Antacids work by neutralizing stomach acid ...

Histamine-2 (H2) blockers, also called H2-receptor antagonists, are another OTC acid reflux medication. They work by binding to histamine receptors in the stomach. Histamine is a compound present ...

I recommend strongly against using over-the-counter estrogen blockers like DIM instead of AIs. A role for these medications in combination may ultimately be proven, but that awaits further study.