This man became very distressed by the severity of the nausea and vomiting and developed intense nausea and vomiting prior to the administration of the chemotherapeutic agents. What treatment could be...

This man became very distressed by the severity of the nausea and vomiting and developed intense nausea and vomiting prior to the administration of the chemotherapeutic agents. What treatment could be given to reduce the anticipatory nausea and vomiting?

1. Histamine acts on H1 receptors on the parietal cell to stimulate acid secretion.

2. Vagal stimulation of the parietal cell increases acid secretion.

3. An unwanted effect of antacids containing magnesium salts is diarrhoea.

4. Antacids are not effective in healing peptic ulcers.