The invention refers to a copolymer or a salt with acceptable efficacy, including an enhancer of GLP-1 / glucon receptor, a connecting device and a transparent acid gel with l1-l2-l-yr20 group, wherein L1 is C1-C20 asphalt and L2 is a connection. Or C1-C20, l is a remaining formula connector (formula connector),a、 The dotted line indicates that the alliance is represented to an Amie group of GLP-1/GLUCAGON receivers by establishing an AMIDA link; X is C (R4R4A) or N (R4);R1, R1a are h or C1-C4 renters; R2 and R2A are h or C1-C4 renters; R4 and R4A are h or C1-C4 renters. The invention refers to the pharmacological composition including such copolymers, as well as drugs for treating or preventing diseases or disorders that can be painfully treated by GLP-1 / glucon receptor.La presente invencion se refiere a un conjugado, o una de sus sales farmaceuticamente aceptables, que comprende un agonista del receptor de GLP- 1 /glucagon, un conector y un hidrogel de acido hialuronico que porta grupos -L1-L2-L-YR20, en donde Y representa un resto agonista del receptor de GLP-1/glucagon, L1 es un alquilo C1-C20, L2 es un enlace o alquilo C1-C20, L es un resto conector de formula (la), en donde la linea discontinua indica la union a uno de los grupos amino del agonista del receptor de GLP-1/glucagon a traves de la formacion de un enlace amida; X es C(R4R4a) o N(R4); R1, R1a son H o alquilo C1-C4; R2 y R2a son H o alquilo C1-C4; R4 y R4a son H o alquilo C1-C4. La invencion se refiere ademas a composiciones farmaceuticas que comprenden dicho conjugado, asi como a su uso como medicamente para tratar o prevenir enfermedades o trastornos que pueden ser tratados mediante un agonista del receptor de GLP- 1/glucagon