Acids: before or after meals, especially nitro-hydrochloric acid.

Acid, Carbolic.

Acid, Gallic: in pyrosis.

Acid, Hydrochloric, Dilute: after a meal, especially if there is diarrhea.

Acid, Hydrocyanic: in irritable cases.

Acid, Lactic: in imperfect digestion.

Acid, Nitric: with bitter tonics.

Acid, Nitro-hydrochloric.

Acid, Sulphurous; in acid pyrosis and vomiting.

Acid, Tannic: in irritable dyspepsia.