Can You Take Thyroid Medicine And Birth Control At The Same Time?

by | Last updated on January 24, 2024

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Whether you’re taking hormone replacement therapy or popping a daily birth control pill,

taking other hormones at the same time as your thyroid medication can interfere with its effectiveness

. “Hormones like estrogen and progesterone can bind to thyroid hormone and prevent absorption,” explains Levy. An easy solution?

Does thyroxine interfere with the pill?

Whether you’re taking hormone replacement therapy or popping a daily birth control pill, taking other hormones at the same time as your

thyroid medication can interfere with its effectiveness

. “Hormones like estrogen and progesterone can bind to thyroid hormone and prevent absorption,” explains Levy.

Does levothyroxine interfere with birth control?


The hormone estrogen also can interfere with the body’s ability to use levothyroxine

. That means women taking birth control pills may need an increased dose of thyroid medication, Pizzi says.

When do you start birth control and levothyroxine?

Thyroid hormone replacement medication, such as levothyroxine, should be taken

on an empty stomach

to maximize absorption. It is best to take this medication 30-60 minutes before taking any other drugs or eating or drinking.

What does levothyroxine interfere with?

Food, dietary fibre and espresso coffee interfere with the absorption of levothyroxine. Malabsorptive disorders reported to affect the absorption of levothyroxine include

coeliac disease

, inflammatory bowel disease, lactose intolerance as well as Helicobacter pylori (H. pylori) infection and atrophic gastritis.

How do you know when your thyroid medicine needs adjusting?

In general, the most indicators that your doctor needs to adjust your levothyroxine dose is that you start having signs and symptoms of an overactive thyroid. These include:

Racing or irregular heartbeat or palpitations

.

Increased blood pressure

.

What happens if you eat right after taking thyroid medicine?

Taking it with or too soon before or after a meal or snack could

reduce absorption

to 64%, from a high of 80% when you’re fasting, according to the American Thyroid Association (ATA). Just changing your timing could bring your thyroid levels back into a normal range.

Is 50 mcg of levothyroxine a lot?

There are two strategies for initiating levothyroxine in healthy adults younger than 65 years:

low-dose

(50 mcg) and full-dose (1.6 to 1.7 mcg per kg). Traditionally, lower starting doses of 25 to 50 mcg per day are recommended for patients 65 years and older or who have ischemic heart disease.

What happens if you take 2 thyroid pills in one day?

Taking an extra dose of levothyroxine by accident is unlikely to harm you. Speak to your doctor if: you accidentally take more than 1 extra

dose

. you get side effects such as a racing heart beat or chest pain – these may not happen straight away, it can be several days before they come on.

Is it better to take levothyroxine in the morning or at night?

There is consensus that levothyroxine should be

taken in the morning on an empty stomach

. A pilot study showed that levothyroxine intake at bedtime significantly decreased thyrotropin levels and increased free thyroxine and total triiodothyronine levels.

Why levothyroxine is bad for you?

For people with heart problems:

Levothyroxine can increase your risk of serious heart problems

, such as heart attack, abnormal heart rhythm, and heart failure. This risk is increased if you’ve already had these problems. Tell your doctor if you have heart problems or a history of heart problems.

What should you not take with levothyroxine?

  • antacids.
  • calcium salts.
  • iron salts.
  • orlistat, a medicine used for weight loss.
  • sucralfate, a medicine used to treat stomach ulcers.

What vitamins should not be taken with levothyroxine?

4. Vitamins and supplements. “You should also avoid any drugs or supplements that contain

iron, calcium, or magnesium

for at least four hours after taking your thyroid medications,” says Dr. Jaiswal.

What are the signs of too much thyroid medication?

  • Heart palpitations or a faster heart rate, even at rest.
  • Trouble falling asleep.
  • Feeling jittery.
  • Sweating a lot.
  • Anxiety.
  • Shaky hands.
  • Diarrhea.
  • Weight loss.

What are symptoms of too much levothyroxine?

  • Change in consciousness.
  • cold, clammy skin.
  • disorientation.
  • fast or weak pulse.
  • lightheadedness.
  • sudden headache.
  • sudden loss of coordination.
  • sudden slurring of speech.

What happens if I don’t take my thyroid medication for a week?


Elevated cholesterol

, including treatment-resistant high cholesterol and increased risk of heart disease. Low body temperature; feeling perpetually cold. Fatigue, muscle weakness, or joint pain. Depression.

James Park
Author
James Park
Dr. James Park is a medical doctor and health expert with a focus on disease prevention and wellness. He has written several publications on nutrition and fitness, and has been featured in various health magazines. Dr. Park's evidence-based approach to health will help you make informed decisions about your well-being.