Los Viagras
Los Viagras is a criminal group based in Michoacán, Mexico. The leader of the group is Nicolás Sierra Santana ("El Gordo"), who currently has arrest warrants for multiple counts of homicide, robbery, extortion, and kidnapping.

Origins and activities 
The gang began operating as a self-defense force in 2014 (Grupos de Autodefensa Comunitaria). Former Michoacán security commissioner Alfredo Castillo Cervantes then asked them to assist in the efforts to capture the leader of the Los Caballeros Templarios cartel, Servando “La Tuta” Gómez, who eventually arrested in Morelia in February 2015.

Los Viagras eventually expanded into the drug trade, first by becoming involved in the production and transportation of methamphetamine, which brought them into a turf dispute with the Jalisco New Generation Cartel, particular the Tierra Caliente region of Michoacán.

One of the group's sicarios was arrested and charged in February 2019 for allegedly committing dozens of murders.

In February 2020, nine people, including three children were killed by Jalisco New Generation gunmen in an arcade during a turf dispute.