La investigacion es de naturaleza cuantitativa, descriptivo de corte prospectivo, en donde se pretende caracterizar el tiempo de reversion que se manifiesta en la contencion mecanica de pacientes psiquiatricos. El colectivo en estudio correspondio a 30 pacientes con edades comprendidas entre los 15 a los 65 anos, Servicio de Observacion Constante (SOC) en el ESE Hospital Mental Rudesindo Soto (HMRS) durante el segundo semestre del 2009, de ambos sexos que manifestaron como caracteristicas comunes: agitacion psicomotriz, con variables alternas comprendidas en, etiologia organica y numero de contenciones implementadas en cada caso. Para realizar la aplicacion de los instrumentos de recoleccion de informacion se creo un formato de valoracion individual de la contencion mecanica, el cual fue revisado y ajustado. Los resultado obtenidos indican que el 60% de la muestra es de genero masculino, el cual el 30% comprenden edades entre los 35 a 44 anos, en donde se evidencian alteraciones en la normalidad de signos vitales y componentes de las esferas mentales. Aunque los sintomas se revierten en un tiempo de 2 a 3 horas por lo cual se da retiro de la contencion mecanica, el paciente continua confuso. Finalmente, se observa que la reversion de la contencion mecanica en la mayoria de la muestra se presenta en tiempos de +/- 1.1 a 2 horas. Palabras clave: Psiquiatricos, tiempo de reversion Abstract The investigation is of quantitative nature, descriptively of pilot cut, where one tries to characterize the time of reversion that is evident in the mechanical containment of psychiatric patients. The group in study corresponded(fitted) to 30 patients with ages understood(comprised) between the 15 at the age of 65, of the Service of Constant Observation (SOC) in THIS Mental Hospital Rudesindo Soto (HMRS) during the second semester of 2009, of both sexes that they showed like common characteristics: agitation p si c o m o triz, w i t h a l t e r n a t e v a ri a b l e s understood(comprised) in, organic etiology and number of containments implemented in every case. To realize the application of the instruments of compilation of information there was created a format of individual evaluation of the mechanical containment, which was checked and fitted. Them turned out obtained they indicate that 60 % of the sample is of masculine(male) genre, which 30 % understands ages between the 35 to 44 years, where alterations are demonstrated in the normality of vital signs and components of the mental spheres. Although the symptoms are re-spilled in a time from 2 until 3 hours by which gives itself retirement of the mechanical containment, the patient continues that confused, finally, it is observed that the reversion of the mechanical containment in most of the sample presents in times of +/-1.1 to itself at 2 hours. Keywords: Psychiatric, time of reversa.