A member asked:

How long for omeprazole 20mg to reduce acid?

4 doctors weighed in across 2 answers
Dr. Ihab Ibrahim answered

Specializes in Pain Management

Starts rapidly: But should be on it for a while, 4-8 weeks for healing of an ulcer. http://www.rxlist.com/prilosec-drug/medication-guide.htm.

Answered 12/15/2017

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Dr. Gabriel Betancourt answered

Specializes in Family Medicine

Omeprazole: Omeprazole begins to work on the very first day of treatment, although it may take one to four days to have a full effect.

Answered 3/11/2021

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