Here is the list of side effects of Nexium from the Drug Information Handbook:
1% to 10%:
Central nervous system: Headache (4% to 6%)
Gastrointestinal: Diarrhea (4%), nausea, flatulence, abdominal pain (4%), constipation, xerostomia
<1% (Limited to important or life-threatening): Allergic reactions, anaphylaxis, angina, angioedema, arthritis, asthma, confusion, depression, dyspnea; edema (facial, larynx, peripheral, tongue); goiter, hematuria, hypertension, hyponatremia, impotence, migraine, paresthesia, polymyalgia rheumatica, rash, thrombocytopenia, ulcerative stomatitis, urticaria, vertigo
I am unaware of polyps coming from Nexium. There is a possibility that the polyps were smaller 2 years ago and were not seen during the colonoscopy.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Thanks,
Kevin, M.D.