A member asked:

I hav no thyroid gland; my tsh was 0.01 & i was taking 150 mcg a.m. now taking 1/2 tab of 112 mcg. can you hav rapid hrt rate if not enough synthroid (thyroxine)?

A doctor has provided 1 answer

Dr. Paul Kaplowitz answered

Specializes in Pediatric Endocrinology

No: Rapid heart rate may be a symptom of being on TOO MUCH thyroid hormone but not too little. From your test results, a whole 150 mcg tablet was too much but cutting the dose to 56 mcg (1/2 of a 122 mcg tablet) may be too big a reduction. You might want to consult with an endocrinologist to help adjust your dosage.

Answered 5/15/2015

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A member asked:

I hav no thyroid gland; my tsh was 0.01 & i was taking 150 mcg a.m. now taking 1/2 tab of 112 mcg. can you hav rapid hrt rate if not enough synthroid (thyroxine)?

A doctor has provided 1 answer

Dr. Paul Kaplowitz answered

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