is vitamin b12 injection expiration can be used expired injections safe Are Shots Safe? Royal Palm Beach Medical Group Safe to use if expired? – How Long Does a B12

Ask your doctor to recommend a painkiller

I had this side effects too..Got Sinopharm first dose..On my first day i had heart palpitations, shortness of breath, difficulty of breathing, increased bp..My 5th day is the worst, my heart is pounding like it will explode..I wasnt able to sleep the whole night because of my palpitations and difficulty of breathing..I felt better and went to bed at 5:30 am already..i consulted a doctor and she told me that it could be acid or gas..and she did not advice me to get the 2nd dose anymore

Many adults remain stable on 1,000 mcg once monthly, though dose intervals can be adjusted according to serum markers

Folate and vitamin B12 supplements may help lower homocysteine levels in the blood while increasing energy and overall well-being