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American College of Apothecaries

THE MICRONUTRIENTS: Survey of 13 Vitamins, Deficiencies, Supplements, and Interactions: Vitamin B12

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Overview / Abstract:

Vitamin B12 is a water-soluble vitamin that is naturally present in some foods, added to others, and available as a dietary supplement and a prescription medication. Because vitamin B12 contains the mineral cobalt, compounds with vitamin B12 activity are collectively called “cobalamins”. Methylcobalamin and 5-deoxy adenosylcobalamin are metabolically active forms of vitamin B12. However, two other forms, hydroxocobalamin and cyanocobalamin become biologically active after they are converted to methylcobalamin or 5-deoxy adenosylcobalamin.

Want to learn more? Click below to get access to our learning materials on Vitamin B12 and receive 1-hour of accredited continuing education.


Nov 18, 2025


Pharmacy CPE




Member Price: $10 | Pharmacist Member Price: $25 | Non-Member Price: $35

Credits / Hours

1-hour knowledge-based home study learning program



Presenters / Authors / Faculty

Quentin Srnka, PharmD, MBA, FACA
Author, Editor

Quentin Srnka is a 1968 and 1969 graduate of the University of Tennessee (Memphis) where he received Bachelor of Science in Pharmacy and Doctor of Pharmacy (PharmD) degrees. Upon graduation he served with the Commissioned Corps of the United States Public Health Service, providing pharmacy, laboratory, and X-ray services " and was appointed interim hospital service unit administrator (Indian Health Service Hospital, Duck Valley Reservation, Nevada and Idaho). During his 31-year tenure as a full-time University of Tennessee College of Pharmacy faculty member, he taught courses ranging from health assessment to community pharmacy marketing and management to counseling and communications. He established and managed a variety of innovative pharmacies associated with the College of Pharmacy and established and managed his own pharmacy in a Memphis suburb. Dr. Srnka’s career interest has been the pharmacist’s role in the care of common, self-limited health problems. He promoted and popularized the term “self-care consultant” as related to community-based pharmacists and contributed to and edited Self-Care Consulting Guide. 

More recently Dr. Srnka served as Executive Vice President / CEO for the American College of Apothecaries (ACA) and American College of Veterinary Pharmacists, establishing ACA’s Health & Wellness Faculty and Compounding Faculty. Quentin is a licensed Alabama pharmacist and resides with his wife Vickie in Alabama and Arizona.

Keywords / Search Terms

American College of Apothecaries, Home Study, Vitamins, Micronutrients, CE, Pharmacist, Pharmacy Technician

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