side effect of b12 injection Shots Effects And How To Treat Them How Vitamin B12 Injections Impact

(Monday 9:00 am to 6:00 pm, Tuesday to Friday 9:00 am to 5:00 pm, and Saturday and Sunday 10 am to 4 pm)

However, there are easy OTC treatments to address allergic reactions using prophylactic (~4 hrs prior) anti-histaminics, Allegra, Benadryl, etc

Mild side effects may include pain or swelling at the injection site, diarrhea and itching

In one mouse study, researchers found that the peptide reduced the pain felt by the animals in their paws when placed on a mildly hot plate. The authors explained that this could be because GHK is similar in structure to cimetidine, a histamine H2 receptor antagonist sometimes given to reduce pain in certain digestive conditions.3 10 In rodents, doses as low as 0.5mg/kg were found to be effective in delivering these anti-pain effects.25 In a 70kg human, an equivalent dose would be around 5.6mg, though thats likely higher than necessary: pharmaceutical-grade GHK-Cu normally ranges from 0.5 mg to 2.5mg per injection