vitamin b12 injection side effect flushing warmth Why do I feel worse after a injection? Feeling worse after B12 Injection:

When the medication becomes less potent, it may deliver a lower dose than intended, making treatment less effective

Conchillo M, De Knegt RJ, Payeras M et al (2005) Insulin-like growth factor I (IGF-I) replacement therapy increases albumin concentration in liver cirrhosis: results of a pilot randomized controlled clinical trial

Ipamorelin is a selective Ghrelin receptor agonist that mimics ghrelin to stimulate the release of growth hormone from the pituitary gland

B12 is an essential B vitamin found in fish, meat, eggs, shellfish, and dairy

PMID: 18046029)

Since B vitamins are water-soluble and easily depleted by stress, illness, diet, or certain medications, many people become deficient without realising it