Surely this should be very easy for Lauda to dispel this by simply denying that he has a pill addiction. However he has failed to do this. Why do you think Lauda would not quickly deny that he is addicted to pills?

Instead, Lauda is wanting to know how much evidence there is against him, and wanting to see the evidence that he has an addiction. All while Lauda's "friend" The Pharmacist is backing him, and preemptively saying that Lauda should be in "DT". What do you think this is an indication of?