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What Causes Hair Loss When On Levothyroxine?

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Posted on Fri, 24 Jan 2014
Question: Dear Dr, I have been taking .25-.50 levothyroxine for 5 weeks, and now my hair is starting to shed. Is this because of being hypothyroid, the medication,or the illness/shock? Will it grow back? ( I have long thick hair!) Also, my digestion is slowed a great deal. What is the best time to take the medicine? Some people say morning, others say at night. What has been your experience with patients?
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Answered by Dr. Minal Mohit (1 hour later)
Brief Answer: hair loss can be due to hypothyroidism. Detailed Answer: Dear ma'm, Hair loss , constipation are both common in hypothyroidism. your recent thyroid status is not shown in your query so i cannot comment upon adequacy of the dose. hair loss due to hypothyroidism will come back once thyroid status is normal. best time to take the drug is early morning , empty stomach, and observe another 30 minutes of fast after the drug. Regards!
Note: For more information on hormonal imbalance symptoms or unmanaged diabetes with other comorbid conditions, get back to us & Consult with an Endocrinologist. Click here to book an appointment.
Above answer was peer-reviewed by : Dr. Shanthi.E
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Dr. Minal Mohit

Endocrinologist

Practicing since :1998

Answered : 836 Questions

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What Causes Hair Loss When On Levothyroxine?

Brief Answer: hair loss can be due to hypothyroidism. Detailed Answer: Dear ma'm, Hair loss , constipation are both common in hypothyroidism. your recent thyroid status is not shown in your query so i cannot comment upon adequacy of the dose. hair loss due to hypothyroidism will come back once thyroid status is normal. best time to take the drug is early morning , empty stomach, and observe another 30 minutes of fast after the drug. Regards!