Description : The Indian Health Ministry has removed the popular antacid salt Ranitidine from the National List of Essential Medicines (NLEM) over cancer-causing impurity N-nitrosodimethylamine (NDMA) concerns. Ranitidine is popularly sold under the brand name Rantac and is the most commonly prescribed antacid for acidity and stomach ache-related issues in India. Tehatta, West Bengal; India.