March 28, 2025

Adult Swim announced today that Common Side Effects has been renewed for a second season. The news comes ahead of the animated comedic thriller's freshman finale this Sunday. The show's 10-episode run has garnered high praise from both critics and viewers.

"We are grateful for the enthusiastic response to 'Common Side Effects' and are thrilled to continue exploring this world with our amazing team and the fans who have embraced the show," said co-creators Joe Bennett and Steve Hely. "The opportunity to push the boundaries of animation and storytelling on Adult Swim is like a wonderful mushroom dream. Our goal with the show is to transform planet Earth and restore the human spirit. For now, we will settle for a second season."

"Joe and Steve did their job by crafting a boundary-pushing and genre-defining piece of television that re-frames what 'adult animation' is capable of," said Adult Swim president Michael Ouweleen. "And you all did your job by showing up on Adult Swim and Max to support the show and lighting up your socials to spread the word. So, see? We CAN have nice things."

The series follows Marshall and Frances, two former high school lab partners who share a secret: Marshall has discovered the world's greatest medicine - a mushroom that can heal almost anything. Bringing it to the public, however, will prove challenging - big pharma, the DEA, and international businessmen are all striving to thwart their efforts.

 
 
 
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