Levothyroxine, a synthetic hormone used to treat people with hypothyroidism, can influence calcium levels in the body if:
If you are taking levothyroxine along with calcium supplements, please ensure you take it on an empty stomach with a full glass of water, and preferably at least 4 hours before or after you take your calcium supplements. It is advised that you do not take levothyroxine and calcium simultaneously, as it is seen that levothyroxine molecules stick to the calcium molecules and form a mixed substance which is not easily absorbed into your digestive tract.
People who do take levothyroxine and calcium simultaneously tend to develop reduced levels of thyroxine. You may need to have regular medical tests if you start taking levothyroxine. It is better to consult a physician while you are taking levothyroxine to ensure your calcium levels are not impacted.
To know more about the effects of levothyroxine on your body, please see, Does Thyroid Medication Increase Your Osteoporosis Risk?