best place to inject b12 shot Optimal Injection Sites for Maximum Absorption and Benefits 4 Best B12 Injection Sites:

The use of anti-infective agents or pyrimethamine may invalidate diagnostic assays for folic acid and vitamin B12

They are particularly beneficial for vegetarians and vegans (since B12 is found primarily in animal products), older adults with reduced absorption capacity, individuals with digestive conditions such as Crohn's disease or celiac disease, and anyone who has had gastric bypass surgery

Once the dosage amount is set, go ahead and take off the safety cover on the needle

If you have any doubts about whether the medication has been stored properly or if it was left at room temperature for an extended time, contact the pharmacy or your healthcare provider for advice

Theoretically this interaction is possible with other proton pump inhibitors (PPIs), although specific clinical data are lacking