DEEP DIVE · CHAPTER 9
The Milk Switch
Along one pathway, dopamine works as a hormone: it keeps the body from making milk. A common pill can cut that brake, and a cheap test catches it.
One of dopamine’s quietest jobs is keeping men from making milk, and a common pill can switch it off. I walk through the one pathway where dopamine acts as a hormone, what happens when a drug cuts its brake line, and why the bill arrives months later in somebody else’s clinic. Then I tell you the cheap test almost nobody orders, and the fix that saves the treatment instead of throwing it away.
13 pages · 16 references, every one verified · written by Dr. Gurpreet Singh Padda, MD, MBA, MHP
Watch Chapter 9
The chapter on video — the same argument, with the figures and the studies on screen as they come up.
The receipts behind Chapter 9
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.
Enter your name, email and mobile number. The Chapter 9 PDF arrives by email within a few minutes, and the other thirty Deep Dives arrive one a week, in order. We do not send marketing texts; your number is there so we can reply if you ask us something.
Frequently asked questions
Can medication cause high prolactin?
Yes. Along one pathway, dopamine works as a hormone, and its job there is to keep the body from making milk. A common pill can cut that brake. When it does, the hormone that dopamine was holding down rises, and the bill often arrives months later in somebody else’s clinic. Chapter 9 of The Dopamine Brain walks through that one pathway step by step.
Can a man make breast milk?
It can happen. One of dopamine’s quietest jobs is keeping men from making milk, and a common pill can switch that job off. The bill often arrives months later, in somebody else’s clinic, far from the prescription that caused it. The Chapter 9 Deep Dive lays out the 16 references behind this, each one verified, and what each study does not show.
Do you have to stop a medication that raises prolactin?
Not always. Dr. Padda describes a cheap test that almost nobody orders, and a fix that saves the treatment instead of throwing it away. Do not change a prescription on your own. The Chapter 9 Deep Dive is written to be shared with your doctor, with the questions to bring to that visit.
