Cimetidine can potentiate the effects of other drugs by inhibiting cytochrome P450 enzymes. 1. Ranitidine is associated with a lower incidence of gynaecomastia than cimetidine. 2. Cimetidine reduces...

Cimetidine can potentiate the effects of other drugs by inhibiting cytochrome P450 enzymes.

1. Ranitidine is associated with a lower incidence of gynaecomastia than cimetidine.

2. Cimetidine reduces acid secretion by more than 90%.