[BlueHill]

Originally Posted by mrsD

Welcome to NeuroTalk:

if you have normal kidney function tests, your use of methylB12 should be fine. Most of that oral B12 is not even absorbed.

People become low if they have autoimmune issues affecting the parietal cells of the stomach. Acid blocking drugs and metformin are also culprits in reducing absorption of B12 from food. Loss of parietal cells occurs genetically also in people who inherit pernicious anemia.

About 30 % of people over 50 may develop low acid in the stomach with aging, and when this happens, B12 cannot be absorbed from food like before. The name for this is achlorhydria.

Many people with only one functioning kidney can have normal functions. You can ask your doctor about your clearance rates. This would also affect many drugs you may use for various reasons.

I'll be back from vacation in about a week or so. We are still in the Northwoods.

Thank you very much mrsD for your reply amidst your vacation. This shows your commitment to help people here. We really appreciate it.
My recent (last month) checkup shows my single kidney is functioning normally. I am not sure about 'clearance rates' you mentioned, I think it is about Creatinine level. Sorry we are software professionals no idea about medical terms. Slowly learing through this forum.
Let me post a few results of my blood test here.

Uric Acid 4.5mg/dL (2.5 - 6.2)(Figures in brackets are the ranges)

Kidney Profile
--------------
Sodium 135 mmol/L (136-405)
Potassium 4.3 mmol/L (3.3 - 5.1)
Chloride 98 mmol/L (95-110)
Urea 24 mg/dL (15-49)

Serum Creatinine
-----------------
Creatinine 0.79mg/dL (0.50-1.20)

Urine test results are all negative.

Currently I am using a single tablet of Telma (Telmisartan 40mg) every day. My BP is always around 100/70. Doctor says it is good use that tablet, but I always doubt that.

I understand, people in this forum are not doctors but sharing our opinions and experiences help us a lot. I wish I should have seen this forum 4 years back. My husband went through a lot. He visited our home country several times only for medical checkups. In our contry of residence medication is expensive and mostly the insurance is covered for inpatients only.

The Methylcobalamin tablets are not delivered yet. Waiting for them.