omeprazole - I've taken this for 2 months and now have another month of twice daily. Then 1 at night for a month and review. Until then I was using 'rennies' as required, without reailising that I was needing them several nights a week and sometimes in the day. DH was fed up with 'living in a TB Hospital' - due to the cough.
I have had heartburn for years but it was the daily, irritating clearing-throat reflex that I needed to find out the cause of. Chest X-ray clear. It has gone mostly as has the back-ground reflux feeling.
This medication is essential initially but the body can have an adverse reaction if there is less than necessary acid. Short term use is usually fine and does what it says on the tin
I U worry about impairing absorption, maybe ask your local Pharmacist?