Dr. Patricia Yarberry Allen and Dr. Brian Landzberg Brian Landzberg, M.D. is a gastroenterologist and liver specialist affiliated with the Weill Medical College of Cornell University, New York-Presbyterian Hospital and Hospital for Special Surgery where he serves as Clinical Assistant Professor of Medicine in the Division of Gastroenterology and Hepatology. His particular areas of clinical interest are celiac disease, functional gastrointestinal disorders including constipation, diarrhea and irritable bowel syndrome, inflammatory bowel disease, gastritis, GERD and liver disease. He has published and lectured on these topics and maintains a very active clinical practice on the Upper East Side of Manhattan. Patricia Yarberry-Allen, MD is a gynecologist, director of the New York Menopause Center, a Clinical Assistant Professor of Obstetrics and Gynecology at Weill Cornell Medical College, and an Assistant Attending Obstetrician and Gynecologist at New York-Presbyterian Hospital . She is a board certified fellow of the American College of Obstetrics and Gynecology. Dr. Yarberry- Allen is also a member of the Faculty Advisory Board and the Women’s Health Director of The Weill Cornell Community Clinic (WCCC).
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Proton Pump Inhibitors and Their Side Effects

By Dr. Patricia Yarberry Allen and Dr. Brian Landzberg
By Dr. Patricia Yarberry Allen and Dr. Brian Landzberg

Should you stop taking Proton Pump Inhibitor (PPI)? This commonly prescribed class of drugs has again been in the news this year with concerns raised about associations with dementia and renal (kidney) impairment. While PPI may promote the problems reported, they may also be more of a marker of other high-risk behaviors rather than the cause of the conditions discussed.

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Dr. Pat Consults: “Heartburn,” “Indigestion,” “Reflux”—How Should It Be Treated?

By Dr. Patricia Yarberry Allen and Dr. Brian Landzberg
By Dr. Patricia Yarberry Allen and Dr. Brian Landzberg

I am 48 and have long suffered from heartburn, indigestion, reflux—all the names apply to the constant discomfort I have in the area of my lower esophagus and stomach. I took a series of tests, and the test for H. pylori was positive. What is H. pylori? How did I get it? Is the two weeks of medication I must take likely to get rid of the infection?

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Dr. Pat Consults: Irritable Bowel Syndrome—Diagnosis and Management

By Dr. Patricia Yarberry Allen and Dr. Brian Landzberg
Dr. Patricia Yarberry Allen and Dr. Brian Landzberg

I have had a diagnosis of irritable bowel syndrome. My GP basically told me to have more fiber, drink more water, and take more time in the bathroom . . . and this is not working. Are there recommendations for diagnosis or treatment that I should discuss with my doctor?

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Dr. Pat Consults: What Vitamin B12 Can Do For You

By Dr. Patricia Yarberry Allen and Dr. Brian Landzberg
By Dr. Patricia Yarberry Allen and Dr. Brian Landzberg

"Could you explain why people become anemic when they don't have enough B12 in their blood, and what supplements in general a woman my age should have been taking? Is there anything else I should have done to prevent this?"

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