SYNTHROID for Thyroid disorder: Side Effects & Safety Data

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There are 15 adverse event reports in the FDA FAERS database where SYNTHROID was used for Thyroid disorder.

Most Reported Side Effects for SYNTHROID

Side Effect	Reports	%	Deaths	Hosp.
Drug ineffective	21	10.1%	0	2
Fatigue	20	9.6%	0	2
Feeling abnormal	19	9.1%	1	4
Weight increased	19	9.1%	0	5
Drug hypersensitivity	17	8.2%	0	0
Dyspnoea	17	8.2%	0	3
Malaise	17	8.2%	0	3
Blood thyroid stimulating hormone increased	15	7.2%	0	4
Headache	15	7.2%	0	1
Nausea	14	6.7%	0	5
Pain	14	6.7%	0	2
Alopecia	13	6.3%	0	0
Asthenia	12	5.8%	0	2
Pruritus	12	5.8%	1	2
Arthralgia	10	4.8%	0	2