Glucosamine, Chondroitin, Melatonin, Coenzyme Q10, and Cranberry Supplementation

About the Course

The dietary supplements discussed in this course are among the most popular in the United States, according to the 2012 National Health Interview Survey (Clarke, Black, Stussman, Barnes, & Nahin, 2015). The combination of glucosamine and chondroitin was the second most popular dietary supplement choice for consumers. Glucosamine salts and chondroitin, individually and in combination, have been investigated extensively for prevention and treatment of osteoarthritis pain and disease progression. Results have been mixed, with the combination of glucosamine sulfate and chondroitin sulfate showing the most positive results. Some studies show equal effectiveness of this combination and NSAID therapy. After completing this course, the learner will be able to identify and monitor potential drug interactions.

Learning Objectives
After completing this course, the learner will be able to:
  • Identify the components of glucosamine, chondroitin, melatonin, coenzyme Q10, and Cranberry responsible for their effectiveness.
  • Identify potential uses of glucosamine, chondroitin, melatonin, coenzyme Q10, and cranberry using the evidence for their effectiveness.
  • Explain common adverse effects and safety concerns when using glucosamine, chondroitin, melatonin, coenzyme Q10, and cranberry.
  • Identify practical considerations of glucosamine, chondroitin, melatonin, coenzyme Q10, and cranberry use to the education of patients using these products.
About the Author
Peggy Piascik, PhD, RPh, received her Bachelor of Science degree in Pharmacy from Ohio Northern University (ONU) and a PhD in Pharmacology from the Ohio State University (OSU) College of Pharmacy. She is a professor of Pharmacy Practice and Science at the University of Kentucky College of Pharmacy (UKCOP). Dr. Piascik speaks at continuing education conferences on the topics of new drugs, dietary supplements, and personalized medicine. She teaches a problem-based elective course in the area of herbal and dietary supplements and co-coordinates an elective course in behavior modification coaching. Dr. Piascik is a past president of the American Association of Colleges of Pharmacy (AACP). She is a four-time recipient of the UKCOP Senior Class Teaching Award and two-time recipient of the AACP Innovations in Teaching Award, and she was named a University Great Teacher by the UK Alumni Association. Dr. Piascik is also a Distinguished Alumnus of ONU and the recipient of the Jack L. Beal Post-Baccalaureate Award from OSU.

How to receive credit:
  • A minimum test score of 75 percent is needed to obtain a credit.

Activity Type - Knowledge-based

Target Audience - Pharmacists, Pharmacists Technicians


  • Contact hours will be awarded through the expiration date.
  • You must score 75% or higher on the final exam and complete the course evaluation to pass this course and have your record of completion submitted through CPE Monitor and to the NABP.
  • Through our review process, Colibri Healthcare, LLC ensures that this course content is presented in a balanced, unbiased manner and is free from commercial influence. It is Colibri Healthcare, LLC's policy not to accept commercial support.
  • All persons involved in the planning and development of this course have disclosed no relevant financial relationships or other conflicts of interest related to the course content.


Colibri Healthcare, LLC is accredited by the Accreditation Council of Pharmacy Education (ACPE) as a provider of continuing pharmaceutical education. (Provider #0607).