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The Best Episodes of Common Side Effects Season 1

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Every episode of Common Side Effects Season 1 ranked from best to worst. Discover the Best Episodes of Common Side Effects Season 1!

The Best Episodes of Common Side Effects Season 1

Former high school lab partners Marshall and Frances begin to unravel a conspiracy involving big pharma and the federal government to suppress knowledge of a...

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  1. 9.1/10(628 votes)

    #1 - Raid

    S1:E10

    Dangerous forces converge on Marshall's camp.

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    Director:Camille Bozec
    Writer:Steve Hely
  2. 8.9/10(591 votes)

    #2 - Cliff's Edge

    S1:E9

    Marshall's mushroom project grows out of hand.

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    Director:Vincent Tsui
    Writer:Sophie Kriegel
  3. 8.5/10(583 votes)

    #3 - In the System

    S1:E6

    Stuck in jail, Marshall faces new threats.

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    Director:Vincent Tsui
    Writer:Jon Foor
  4. 8.4/10(645 votes)

    #4 - Dumpsite

    S1:E4

    Frances tracks down Marshall in an unlikely location.

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    Director:Camille Bozec
    Writer:Jean Kyoung Frazier
  5. 8.4/10(606 votes)

    #5 - Star-Tel-Lite

    S1:E5

    Marshall, Frances, and their crazy neighbors deal with the aftermath of a dangerous incident.

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    Director:Sean Buckelew
    Writer:Dave King
  6. 8.4/10(528 votes)

    #6 - Amelia & Wyatt

    S1:E8

    Marshall and his new ally make a bold move.

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    Director:Sean Buckelew
    Writer:Daniel Schofield
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  7. 8.3/10(776 votes)

    #7 - Lakeshore Limited

    S1:E2

    Marshall's forced on the run as the DEA pursues him.

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    Director:Sean Buckelew
    Writer:Steve Hely
  8. 8.3/10(536 votes)

    #8 - Blowfish

    S1:E7

    A chance encounter offers a risky opportunity for escape.

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    Director:Camille Bozec
    Writer:Karey Dornetto
  9. 8.2/10(905 votes)

    #9 - Pilot

    S1:E1

    Marshall meets his old high school classmate Frances and lets her in on a world-changing secret.

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    Director:Camille Bozec
    Writers:Joseph Bennett, Steve Hely
  10. 8.2/10(691 votes)

    #10 - Hildy

    S1:E3

    Marshall visits an old mentor as new pressures mount.

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    Director:Vincent Tsui
    Writer:Emma Barrie

Season 1 Ratings Summary

"Raid" is the best rated episode of "Common Side Effects" season 1. It scored 9.1/10 based on 628 votes. Directed by Camille Bozec and written by Steve Hely, it aired on 3/30/2025. This episode is rated 0.2 points higher than the second-best, "Cliff's Edge".