possible interaction between calcium supplements and levothyroxine (Synthroid, etc.)

April 1998

New reports suggest a possible interaction between calciumsupplements and levothyroxine (Synthroid, etc).

Lots of people take both levothyroxine and calcium...especially women.

Levothyroxine may be less effective if it's taken with acalcium supplement such as Tums or Os-Cal.

Get concise, unbiased advice for effective drug therapy, plus CE/CME

Prescriber's Letter includes:

12 issues every year, with brief articles about new meds and guidelines
48+ CE courses, including the popular CE-in-the-Letter
Quick reference drug comparison charts
Access to the entire archive

Subscribe Today!

Already a subscriber? Log in

Volume pricing available. Get a quote

Table of Contents

Viagra (sildenafil), the first ORAL therapy for impotence
Thyroid Disorders possible interaction between calcium supplements and levothyroxine (Synthroid, etc.)
Gastroenterology omeprazole (Prilosec) is effective to prevent and treat NSAID-induced ulcers
LOTS of new interest in the herb, kava
St. John's wort now comes in a PATCH
Cardiology calcium blockers might increase the risk of MI
Smoking Cessation help the patients choose the right one
Smoking Cessation help patients choose the right smoking cessation product
Dermatology whether sunscreens prevent melanoma
Infectious Diseases Some patients on Crixivan or other protease inhibitor combo therapy are noticing an unusual side effect
Infectious Diseases new sexually transmitted diseases treatment guidelines
Neurology & Pain dextromethorphan for pain
nutritional drinks
good resources to help you get drug samples and FREE medications
Dermatology possible risk of depression and suicide in patients taking Accutane for acne