DEEP DIVE · CHAPTER 19
The Blockade
Antipsychotics work by blocking dopamine receptors, and the margin between filling enough receptors to help and filling enough to harm is narrow. The Chapter 19 Deep Dive gives the evidence on that margin, what these drugs cost the person taking them, and why the long-term question is still open.
There is exactly one place in medicine where we have measured, in living people, how much of a receptor a drug must fill to work and how much filling starts to hurt. The gap is thirteen percentage points. I will show you what sits inside it, what these drugs actually cost the person taking them, and why anyone who tells you the long-term question is settled is telling you about themselves.
12 pages · 18 references, every one verified · written by Dr. Gurpreet Singh Padda, MD, MBA, MHP
Watch Chapter 19
The chapter on video — the same argument, with the figures and the studies on screen as they come up.
The receipts behind Chapter 19
The book makes the argument. This Deep Dive shows the evidence, claim by claim: the study, who was in it, the number and where it sits in the paper, what it does not show — and the questions to bring to your own physician. It is written to be shared with your doctor.
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Frequently asked questions
How do antipsychotics work in the brain?
They block dopamine receptors. What decides whether the drug helps or hurts is how many of those receptors it fills. Fill enough and the drug helps. Fill more and the harm starts. This is the one place in medicine where that line has been measured in living people, and the gap between helping and harming is thirteen percentage points.
Do antipsychotics have side effects?
Yes, and the narrow margin explains why. The level of receptor blockade that helps sits only thirteen points below the level that starts to harm, so a dose that overshoots pays for it. The Chapter 19 Deep Dive lays out what these drugs actually cost the person taking them, study by study, including what each study does not show.
Does the brain go back to normal after antipsychotics?
Nobody can honestly promise an answer yet. The long-term question on these drugs is still open, and anyone who tells you it is settled is telling you about themselves, not the evidence. The Deep Dive shows who was in each study and what the design could not capture, and it lists the questions to bring to your own physician.
