When does Common Side Effects return?

Common Side Effects is an American adult animated television series created by Joseph Bennett and Steve Hely for Cartoon Network's Adult Swim block with availability on Max. The series premiered on Adult Swim on February 2, 2025, to critical acclaim. It was announced the series was renewed for a second season on March 28, 2025. Two high school friends, Marshall and Frances, reconnect after Marshall discovers the Blue Angel Mushroom, a mushroom with healing effects that can allegedly cure all illnesses.