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You can take levothyroxine either one hour before meals or two hours after eating and one hour before taking other meds and any vitamins and supplements but two hours before taking iron or calcium. Source(s): I'm a nurse. Nope, your supposed to take it on an empty stomach, then eat an hour or so after you take it.
I've been on levothyroxine for almost 3 1/2 years. My dose is still quite high (137mcg). I was told not to have anything to eat for at least 30-60 minutes after I take my pill in the morning and no coffee for an hour before or an hour after my pill. Also, absolutely nothing with any calcium or iron for a minimum of 4 hours before or after.