The Simpsons (1989– )
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Brother's Little Helper 

Bart is put on medication to control his behavior, but the pills cause him to become paranoid and insane.


Mark Kirkland


Matt Groening (created by), James L. Brooks (developed by) | 3 more credits »


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Episode cast overview:
Dan Castellaneta ... Groundskeeper Willie / Homer Simpson / Video Game Announcer / Krusty the Clown / Man in Showgirls / Grampa Simpson / Soldier #1 / Sideshow Mel (voice)
Julie Kavner ... Marge Simpson (voice)
Nancy Cartwright ... Bart Simpson / Nelson Muntz / Todd Flanders / Ralph Wiggum (voice)
Yeardley Smith ... Lisa Simpson (voice)
Hank Azaria ... Moe Szyslak / Apu Nahasapeemapetilon / Pharmacist #1 / Video Game Surfer / Technician / Carl / Organizer / Captain McAllister / Dr. Nick Riviera / Soldier #2 / Comic Book Guy / Lord Widebottom / Chief Wiggum / Lou (voice)
Harry Shearer ... Principal Skinner / Hosey the Bear / Ned Flanders / Lenny / Dr. Hibbert / Otto / Montgomery Burns / Waylon Smithers / Reverend Lovejoy / Computer (voice)
Mark McGwire ... Himself (voice)
Marcia Wallace ... Edna Krabappel (voice)
Marcia Mitzman Gaven Marcia Mitzman Gaven ... Maude Flanders #2 (voice)
Pamela Hayden ... Milhouse Van Houten / Rod Flanders / Jimbo Jones (voice)
Tress MacNeille ... Pharmacist #2 (voice)
Maggie Roswell ... Maude Flanders #1 / Showgirl (voice)
Russi Taylor ... Martin Prince / Sherri (voice)
Karl Wiedergott Karl Wiedergott ... Stage Manager (voice)


After yet another prank from Bart, involving flooding the gym, principal Skinner talks to Homer and Marge and advices them to make Bart take a new behavior drug, called Focusyn. At first Bart doesn't want to take the drug, but pretty soon he doesn't mind and it actually seems to work: Bart stops playing pranks, actually pays attention in class and reads in his spare time. Good times don't last and Bart starts behaving very strange and paranoid. Written by Marco van Hoof <>

Plot Summary | Add Synopsis


Animation | Comedy


TV-PG | See all certifications »

Parents Guide:

View content advisory »






Release Date:

3 October 1999 (USA) See more »

Filming Locations:


Company Credits

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Technical Specs


Sound Mix:

Dolby | Dolby SR (seasons 3-19)



Aspect Ratio:

1.33 : 1
See full technical specs »

Did You Know?


The sequence of Bart stealing an army tank and destroying half of Springfield under the influence of mind-altering substances is likely based on Shawn Nelson, a man infamous for a similar, albeit serious, incident. See more »


Bart asks the family to close the door to his room. You hear the door slam shut, but in the following shot, the door is wide open. See more »


Comic Book Guy: Egad! A maniac cutting a swath of destruction! This is a job for the Green Lantern, Thundra, or possibleeee... Ghost Rider
Otto: What about Superman?
Comic Book Guy: Oh, please.
See more »


Featured in Bigger Stronger Faster* (2008) See more »


While Strolling Through The Park One Day
Music by Ed Haley
See more »

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User Reviews

The simpsons episode I laugh the most at
17 September 2017 | by joemm14See all my reviews

Is this The Simpsons most creative episode? No. Is it the shows most well written episode? Certainly not. The plots not really complex. It's an episode pretty much where Bart takes medication drugs, gets super smart, then becomes out of control. Sounds rather simple, doesn't it?

However where this episode does display off its radiant charm is through it being absolutely hilarious. In fact, it may be my opinion alone, but to me it's one of the show funniest.

It has so many memorable humorous lines such as:

-"Bart: Thanks for coming out here mom.

Marge: No, thank you for stopping the tank!

Bart: It ran out of gas!"

-"Homer: My god is she brave. Standing up to that freaked out.


Lisa: Dad, that junkie is your son!

Homer: Why don't you just tell everybody!"

Along with so many others. So even though I know there are many better made Simpsons episodes, I still just genuinely love this one.

7 of 7 people found this review helpful.  Was this review helpful to you? | Report this
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