Fidelity (aka: Truth or Consequences) - S1-E7
Trivia: On the TV after House finishes watching his soap, its credits are rolling. Most are made-up names but two are in-joke references to staff members. Marcy Kaplan as Hair Stylist - usually credited as Marcy G. Kaplan, she was an Associate Producer for that episode and is now a Co-Producer. And Cindy Carr as Wardrobe - she was a Set Decorator for the entire first season except for the Pilot.
Answer: You have the right episode. The big deal at the end about the letters on the pills was to show that Brandon had the wrong pills all along. House was smiling because he was right.
MoonFaery ★