What is the daily maximum dose for esomeprazole? and should it only be used short term?

Esomeprazole: The usual dose of esomeprazole is 20-40mg once a day. It is often prescribed on an ongoing basis, but usually only if prescribed that way by your doctor or a GI specialist. Higher doses are occasionally necessary, at the discretion of your doctor. Do not take it for longer than two weeks on your own and do not increase the dose yourself. Talk to the doctor if your current dose isn't working.