What Almoks® is and what it is used for Pharmaceutical product Almoks refers to the group of antacids and contains Aluminum Oxide and Magnesium Oxide as active agents used to neutralize free hydrochloric acid which reduces the quantity of acid in the stomach. Almoks® is prescribed for antacid treatment (focused on reduction of gastric acidity) of heartburn and gastroesophageal reflux (flow of gastric material back into the tube) in adults and adolescents after 15 years. If the condition is not improved after 7 days after beginning of the treatment or if you feel worse, consult your doctor.