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Gabriel Brooks

Gabriel Brooks

Gabriel A. Brooks, MD, MPH is a medical oncologist and health services researcher at Dartmouth Cancer Center / Geisel School of Medicine, known for his advocacy of universal DPYD genetic testing before fluoropyrimidine (5-FU) chemotherapy.

Sep 30, 2026

11:52
And what are the signs and symptoms and time to onset?
11:54
The signs and symptoms include watery diarrhea, This is something that I deal with a lot in my practice, so it's something that patients can have this even when they're receiving a safe dose, but they shouldn't have that in a severe way.
12:13
If a patient is getting dehydrated because they're going to the bathroom, they're having so many stools that they're losing.
12:22
They're getting dehydrated from that.
12:24
That's abnormal and it's unsafe.
12:27
And so that is one of the symptoms.
12:31
Another symptom is mucositis, which is sores in the mouth.

8 MINS LATER

20:57
What are you referring to there? What was the advocacy? Who did it? Who do we have to thank? I guess this is a bigger question.

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