title: The bioavailability of a new sustained-released preparation of proxiphylline (Neofylin Retard)in the guinea pig.
mesh_terms: D000818:Animals; D001702:Biopharmaceutics; D001993:Bronchodilator Agents / Q000378:metabolism*; D003692:Delayed-Action Preparations; D006168:Guinea Pigs; D006634:Histamine H1 Antagonists; D008297:Male; D013806:Theophylline / Q000031:analogs & derivatives* / Q000378:metabolism
chemical_list: D001993:Bronchodilator Agents; D003692:Delayed-Action Preparations; D006634:Histamine H1 Antagonists; D013806:Theophylline