Deoxycholic Acid Monosodium Salt is a chemical compound used in the medical and cosmetic industry, mainly for reducing fat cells. However, if you are looking for antonyms for this particular word, it would be difficult to mention a precise word. Since this compound has a specific chemical composition, it is tough to find direct antonyms. However, in general, some antonyms for "acid" can be found- base, alkaline, and neutral. Additionally, some antonyms for "monosodium" can include polysodium, disodium, or tetrasodium. Nonetheless, compounds as distinct as "Deoxycholic Acid Monosodium Salt" make it quite challenging to find suitable antonyms.