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Quick Answer: Unopened GLP-1 medications stored properly in the refrigerator at 36F to 46F remain effective until the manufacturer's expiration date printed on the packaging

A common dose for treating deficiency is 1,000 mcg

doi: 10.1007/BF03010578

Vitamin B12 Injections : For severe deficiencies, pernicious anemia, or significant digestive problems that block absorption, injections are the gold standard
