take levothyroxine FIRST THING in the morning on an empty stomach
December 2008
It's important to take levothyroxine FIRST THING in the morning on an empty stomach...because absorption can be decreased by calcium, iron, fiber, and other substances.
New evidence suggests that even coffee MIGHT reduce absorption.
Tell patients to wait at least 30 minutes before eating...and 4 hours to take supplements with calcium, iron, magnesium, or aluminum. The same 4-hour wait goes for sucralfate, cholestyramine, and orlistat.
Get concise advice on drug therapy, plus unlimited access to CE
Pharmacist's Letter membership benefits include:
- 12 issues every year — what you need to know and do, right now
- Quick, practical reference charts and tools
- Comprehensive CE library to meet license renewal and state requirements
- Multiple course formats including live webinars, podcasts, and CE-in-the-Letter to match your learning style
- Plus much more!
Choose the right tier for your needs today.
Already a subscriber? Log in
Volume pricing available. Get a quote