P Aminosalicylic Acid Monosodium Salt Dihydrate is a mouthful to pronounce and remember. Luckily, in the world of science and medicine, there are synonyms that make it easier to refer to this compound. Common alternatives to this long name include PAS, Sodium p-aminosalicylate, and Sodium para-aminosalicylate dihydrate. These synonyms simplify discussions and allow for better communication between researchers, physicians, and pharmacists. PAS is commonly used in the treatment of tuberculosis, particularly in cases that are resistant to other medications. Remembering these shorter names helps professionals in the field to efficiently and accurately discuss, prescribe, and administer this essential drug.