see give loperamide
1 or 2 tablet, if it is iess in frequency then continue it
combined antibiotic is helpful to grandma .you give her twice a day
consult doctor for better treatment. If check BP with your doctor. Elecral powder is also helpful.
You can give home remedies like curd
, buttermilk, pomegranate, coffee
Takecare of your granny
give feedback for better evaluation.