Common Name: Lactic Acid, Milk Acid.   Causes & Symptoms for SBL Acidum Lacticum Lacticum Acidum is useful in morning sickness especially in pale anemic women. Nausea is better from eating.  Lacticum Acidum also helps in stomach complaints when there is voracious hunger and tongue is dry. There is hot, acrid eructation with nausea and burning in stomach which extends to throat. Lacticum Acidum also helps in rheumatic pain in joints and shoulders