Hello Ramaprabu and thanks for writing in at HCM
The stomach pain is due to the anti-coagulant and other medication you are taking.
Take all the medication after meals and at a regular interval.
Don't take all the medication in one time take them at 10-15 minutes gap.
which is coated so that it dissolve in after reaching stomach.
Take Antacids, antioxidants
and Proton pump
inhibitors with the medications.
Their are other anti-coagulant present, so ask your doctor to try changing them.
Hope this will help you.
You can not stop ecosprin unless it is replaced by other anti-coagulant.
Consult your doctor for changing it.