The recommended dose of omeprazole differs depending on what you’re using it for.
The most commonly suggested doses for adults are:
For indigestion: Take 10 - 20mg of omeprazole a day
For heartburn and acid reflux: Take 20 - 40mg of omeprazole a day
For stomach ulcers: Take 20 - 40mg of omeprazole a day
For Zollinger-Ellison syndrome: Take 20 - 120mg a day
Of course, you should always follow the dosage recommended to you by your doctor or pharmacist, so if you’re unsure how much omeprazole you should take remember to speak to a medical professional.