formulation, drug dosage form for oral transmucosal administration, transmucosal drug delivery system, method of treatment and prophylaxis of a disease or disorder, method of treatment, formulation, method for treatment or prevention of head and neck squamous cell carcinoma (hnscc), method for chemoprevention of an oral cancer or precancerous condition, method for increasing the concentration of a retinide composition, method of treatment and prophylaxis of a disease or condition, ratification method of a subject presenting a symptomatic medical condition , method of treating an oral cancer or precancerous condition in a patient, method for making an oral drug delivery system, method for increasing the release and permeation of a retinide composition.