All the fun went out of asking about H2 antagonists when cimetidine went out of fashion.
T/F H2 receptor antagonists do not cross the placenta
T/F QT prolongation may occur with H1 Receptor anatagonists,
T/F H2 Receptor antagonists reduce the pH of gastric fluid already present in the stomach
T/F H1 receptor antagonists are competitive antagonists
T/F Loratidine is slightly more sedating than promethazine