Thanks for posting your query.
As you are suffering from all these symptoms since 5-6 years, then what was your endoscopy and ultrasound report?
Rebek DSR contains rabeprazole
(a PPI) which you can take > 5 years twice in day with out any side effects (mentioned in CGDT 2010). Whatever side effects such as adenocarcinoma of stomach is only reported in rodents, not in human beings.
So you are safe, you can take it without any side effects.
For abdominal heaviness, you should take prokinetics if domperidone
in Rabek DSR is not effective.
Topcid contains famotidine
which may cause headache, constipation
, dizziness and may affect metabolism
of various medicines.
You should also consult with physician.
Get well soon.
Dr. Mayank Bhargava