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Guide to Drug Food Interactions

Guide to Drug Food Interactions


Excellent resource full of clinical pearls! Easy to use detailed guide on 500 of the most prescribed drugs and their influence on or by foods. Medications can contribute to nutritional deficiencies, and foods can alter the absorption of many drugs. This book distills the important facts from medical literature and pharmaceutical research. Every clinician or private practitioner needs a copy.


I’m keeping this book on my desk. I’m gathering data on patients. I will refer to this book for food drug interactions. – Kathy L. 1/22

This is a wonderful, comprehensive look at the interactions between foods and medications. It is an important topic and not addressed enough (in medical education). D Johnson 8/11/2020

Eric Christianson, PharmD, BCGP, BCPS
Course Expiration Date: Feb-22-2027
Course Performance Indicators: 4.1.1, 8.2.3, 10.2.3, 10.4.2
Product Name

Book Only (2110)

Regular price $32.00 $32.00

15 CE Online Test Only (W2111)

Regular price $123.00

25 CE Online Test Only (W2112)

Regular price $153.00

15 CE Book & Online Test (W2113)

Regular price $150.00

25 CE Book & Online Test (W2114)

Regular price $175.00

Book Details

Author Eric Christianson, PharmD, BCGP, BCPS
Year Published 2020
Edition 1st Edition
Publisher Self-Published
ISBN 979-8664938357
Format Paperback
Page Count 307
CDR Activity Numbers
  • 15 CE Online Test Only: 181549
  • 25 CE Online Test Only: 181548
  • 15 CE Book & Online Test: 181549
  • 25 CE Book & Online Test: 181548

Course Objectives

Level 1 & 2 

CPE Type: 740 for Web-based/Online Tests

Upon successful completion, the users will be able to:

1. Identify three common foods that often interfere with prescriptions and should not be consumed with those drugs.

2. List four medications that affect blood sugar control and must be used cautiously by people with Type 2 Diabetes.

3. Discuss five common drugs that may cause negative side effects in the elderly.

4. Describe two negative side effects of chronically taking anti-inflammatory drugs (NSAIDs).

5. List two common drugs that may cause toxicity when taking large amounts of calcium supplements.

6. Discuss at least four options people can use to time their meals and drug intake to increase the drug’s effectiveness, decrease side effects, or improve tolerance in the patient.

7. Identify three drugs that should not be taken with alcoholic beverages.

8. Name at least five drugs that reduce nutrient levels so low that a deficiency might occur.

9. Identify three drugs that may affect a person’s weight so much that weight loss or excessive gain can be a problem.

Recommended For...

Registered Dietitian (RD/RDN)
Dietetics Technician Registered (DTR/NDTR)
Integrative & Functional Nutrition Academy Professional
Certified Diabetes Care & Education Specialists (CDCES)
Registered Nurse (RN)
American College of Sports Medicine

Why We Chose This Book

As mentioned by a reviewer, the author has created content that is time-consuming and labor intensive to research from medical studies and pharmaceutical resources. The book covers the five hundred most prescribed drugs. The author is well respected.

About the Author

Eric Christianson, PharmD, BCGP, BCPS is a clinical pharmacist who is passionate about patient safety and filling holes in medical education and clinical practice with useful resources. He is founder of, a website dedicated to providing quality, real world medication education for healthcare professionals. He also hosts the Real Life Pharmacology podcast, which has been downloaded over 700,000 times in over 150 different countries.