Comprehensive and Detailed Step-by-Step Explanation:
Levothyroxine (Synthroid)is athyroid hormone replacementused to treathypothyroidism. It must be takenon an empty stomachbecause food, calcium, and ironinterfere with its absorption.
Administration Guidelines for Levothyroxine:
Take30-60 minutes before breakfastwith afull glass of water.
Avoidcalcium, iron, and antacidsfor4 hoursafter taking it.
????Explanation of Answer Choices:✅A. Levothyroxine→Correct.Absorption is reduced by food, calcium, and iron.❌B. Amlodipine→ Incorrect.A calcium channel blocker that can be taken with or without food.❌C. Cyclobenzaprine→ Incorrect.A muscle relaxant with no food restrictions.❌D. Loratadine→ Incorrect.An antihistamine that does not require fasting.
????Reference:
American Thyroid Association (ATA) Levothyroxine Guidelines
FDA Drug Labeling for Synthroid
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