Acidil® To purchase Acidil® and other homeopathic remedies online, please click the button above. For temporary relief of occasional heartburn, acid indigestion or sour stomach. Active Ingredients Abies nigra 4C, Carbo vegetabilis 4C, Nux vomica 4C, Robinia pseudoacacia 4C Acidil® is available to buy through our online shop from Boiron in USA, by clicking the red 'View Purchase Options' button. Alternative names, keywords, and common mis-spellings Heartburn, Acid Indigestion, Sour Stomach.