Benefit and Technique of Intravenous B12 Administration!

The route of b12 shots is suggested according to the patient symptoms as all the three routes differ in their bioavailability and thus efficacy. For slow and steady continuous release, b-12 shots are given through subcutaneous route whereas intramuscular and intravenous route are used for rapid availability of b12 in the circulation, for rapid relief from symptoms.

Technique for some other person injecting b12 shots:

After choosing an appropriate site for b-12 shots, the injecting person should wear gloves on his hands as an initial step to make the procedure germ free. Remove the outer plastic covering of syringe and fill it with b12 from the vial. Short needle of not more than 25 gauge should be used for intravenous route. It is thin and thus helps in keeping the procedure pain free. For b12 shots, fill the syringe with b12 from the vial, remove the cap, invert the syringe, insert it into vial and pull the plunger backwards. When the required amount of b12 is pulled into the syringe, push off any air that is present in it. Now cover the needle with cap so that it is kept germ free till you prepare the skin area for b12 shots administration.


Apply tourniquet proximal to the site if injection. For example if you are going to inject b-12 shots in arm, ask the patient to clench his fist and you apply tourniquet on the upper arm. Blood supply to the limb will stop for a while and the veins will become prominent and you can now administer b12 easily. Clean the injection site with alcohol swab so that a germ free area is ready for giving b12 shots.

The technique for introduction of needle into a vein is very important as you have to be very careful not to inject b12 shots into subcutaneous tissue or muscle. Keep the needle horizontal and parallel to the vein in which you are going to inject. Introduce the needle into the vein very slowly and carefully so that b12 shots procedure remains pain free. Once a vein is punctured, hold the syringe with your left hand and pull the plunger back with your dominant hand to see where exactly the needle is. If blood enters the syringe upon pulling the plunger back you are at the right place whereas if you have entered a muscle, no blood will enter the syringe. Open the tourniquet and ask the patient to open fist before you inject so that blood supply of that area is reestablished. Inject b12 shots slowly by pushing the plunger forward. After injecting all b12, slowly remove the needle by moving it back at the same angle on which it was introduced. As the injection site is punctured and open to bacteria, compress it with an alcohol swab after b12 shots are given. Apply a temporary bandage on the injection site to prevent local infection or sepsis. After b-12 shots are injected successfully, dispose -off the used syringe in a needle cutting disposal box. Complete course of b12 shots should be taken according to the treatment regime.

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  1. Excellent

  2. informative share. thanks!

  3. useful and informative.

  4. wow interesting

  5. very informative

  6. thanks for such elaborated article on spine health.

  7. Wow

  8. Good work thank you for sharing.

  9. B12 helps prevent anencephaly in babies. :) i didnt know that the b12 was intravenous.

  10. Thanks again.

  11. well written and informative article thanks for sharing another great piece

  12. Read about vitamin b12 importance in :

  13. I learn new things from this informative article about b12 shots. Thanks.

  14. Good work. Thank you for share that

  15. brilliantly written thanks

  16. I think injection should be the last alternative since doing it too often will damage our veins.

  17. no no. its not really so. veins arent damaged so easily if proper technique is observed. b12 iv is the best way to get quick relief from deficiency symptoms. Bioavailability of oral tablets is so less that one wouldnt get any symptomatic relief and 2ndly it is well mentioned in this my other article on b12 that prolonged symptoms can cause permanent damage to the nervous system ‘ sub acute combined degeneration of spinal cord and brain’.

    Hope u got my point.

  18. Ouch, it sounds painful, but we go through a lot for good health.

  19. Detailed info. Thank you.

  20. informative share. thanks!

  21. Very good article…

  22. Very informative post.

  23. Once again. You did good job

  24. This is an excellent, informative and great article which gives us an inside view of this process…

  25. By the end of this year, I will have gained alot of medical knowledge just by visiting your triond pages! This was really professionally delivered…heavily loaded with useful medical information! Thanks Dr!

  26. O. That was a lovely comment Gaby. I appreciate your feeling. thanks!

  27. I don’t know how you do it but your articles are very professional and detailed! I had a B-12 shot as a very young woman (maybe 24) and I had never experienced such a calming benefit. I forgot why I got it, I was in very good health. I have often wondered about these shots availability. I seldom here them mentioned anymore. Thanks for sharing such great knowledge! :)

  28. very informative

  29. Thank you very much for this article Doctor. I can not imagine myself doing it IV on myself, my veins are so bad, and even when I do it on a patient I feel slightly scared, though I have been a nurse for years ;) . Maybe I am just stupid. But anyway, thank you for your support too!

  30. Great work!

  31. B12 helps prevent anencephaly in babies. :) i didnt know that the b12 was intravenous.

  32. Very interesting so thanks for sharing.

  33. well written and thanks for the nice suggestion ,helpful post

  34. Every day, tell at least one person something you like, admire, or appreciate about them.

    thanks :

  35. What a truly excellent and in-depth article. Thank you for this. I enjoyed the read.

  36. really informative, thanks

  37. very useful

  38. very interesting post .thanks for share

  39. irresponsible to tout B12 shots as a way to be fresh as a celebutard. as for self-injection, it’s preferable in my mind that the patient gets the shot from the family doctor because that gives the dr the opportunity to monitor the patient for minute changes that could become more serious if left unattended.

  40. thanks for this article share.

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