Has_Salt_Or_Ester_Form USAGE NOTE: A salt form of a drug consists of 2 parts, one acidic and one basic group that are readily disassociated in liquid phase. Salt forms are either salts of strong acids and basic drugs (e.g. Atropine Sulfate, Cetirizine Hydrochloride) or salts of strong bases and acidic drugs (Allopurinol Sodium). This association is usually used in conjunction with Has_Free_Acid_Or_Base_Form. Has_Salt_Or_Ester_Form Has_Salt_Or_Ester_Form A5 An association that connects the acid or base form of a drug with various salt or ester forms. Has Salt or Ester Form Conceptual Entity