b12 injection cat Cyanocobalamin Injection, 1000 mcg/mL 1mL Vial How To Give Your Cat

I am NOT advising you to follow my possibly questionable practice, but, when I knew we were going through Brexit I took note of the expiry dates of ampoules that were being issued at the time and chose to buy enough ampoules to last me for a year beyond their expiry date - working on the principle it might take a couple of years for the supply chain to work itself out and I didn't want to run out

However, some seniors, especially those with a B12 deficiency, may need higher doses

Temporary urine discoloration (bright yellow), which is harmless

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Its important for healthcare providers to regularly check on the dosage to avoid side effects