5 Drug delivery agents in the form of oral soluble film, sublingual film, and transmucosal film that facilitate the delivery of prescription pharmaceutical drug preparations; films dissolvable in the mouth for the oral delivery of prescription pharmaceutical drug preparations; pharmaceutical preparations for the prevention and treatment of neurological, cardiopulmonary, viral, metabolic, endocrine, musculoskeletal, genitourinary, gastrointestinal, oncological, autoimmune, inflammatory, pain, respiratory, hormonal, central nervous system, and psychiatric related diseases and disorders; pharmaceutical preparations for the treatment of epilepsy, seizure disorders, and psychiatric disorders; pharmaceutical preparations for the prevention and treatment of sexual dysfunction; pharmaceutical preparations, namely, anticonvulsants, antiseizure medications, psychotropics, benzodiazepines, and mood stabilizing medications; pharmaceutical preparations for the treatment or prevention of allergic reaction, anaphylaxis, and asthma; pharmaceutical preparations for the treatment of diseases and disorders of the cardiovascular system, hypertension, and pulmonary arterial hypertension; pharmaceutical preparations for the treatment of benign prostatic hyperplasia; pharmaceutical preparations for the treatment of migraine, tension, and cluster headaches