Welcome to healthcare magic!
The medicines you have described are the typical drugs required in CRF.
If you do not have ulcers in mouth then you can stop Becosule.
Your Potassium is near to the riskiest levels where cardiac arrest
Please avoid fruits and green vegetable which have high potassium.
You can start K+ binding resins orally. K+ levels should be below 5.5 Meq.
The BP is low due to ultrafiltrate during Dialysis
, request your nephrologist
to reduce it.
If you are asymptomatic then the BP you have mentioned is also acceptable level.
I hope this advise would be helpful for you.
Wish you a great health!