In addition, long-term use of
antibiotics can deplete vitamin
B levels in the body, particularly B2, B9, B12, and vitamin
H (biotin), which is considered part of the B complex.
The body's ability to absorb vitamin B12 is decreased when taking stomach acid-reducing medications such as omeprazole, lansoprazole, ranitidine, cimetidine, or antacids that are often used to treat gastroesophageal reflux, ulcers or related symptoms.