Skip to content
Important: This site presents data from the FDA Adverse Event Reporting System (FAERS). A report does not mean the drug caused the event. Full disclaimer.

Thyroid Hormone Synthesis Inhibitor [EPC]: Side Effects & Safety Data for 2 Drugs

Boost Your Natural Energy & Metabolism

Mitolyn — 6 exotic plants to unlock your body's fat-burning power. 90-day guarantee.

Try Mitolyn Now

Thyroid Hormone Synthesis Inhibitor [EPC] includes 2 drugs with a combined 3,450 adverse event reports in the FDA FAERS database. Compare their safety profiles, side effects, and outcomes below.

2
Drugs in Class
3,450
Combined Reports

All Thyroid Hormone Synthesis Inhibitor [EPC] Drugs Ranked by Reports

Drug Brand Name Reports Deaths Hosp. Death Rate
METHIMAZOLE Methimazole 2,500 185 1,068 7.4%
PROPYLTHIOURACIL Propylthiouracil 950 63 438 6.6%

Common Side Effects in Thyroid Hormone Synthesis Inhibitor [EPC] Drugs

Side EffectReportsDeaths
Drug ineffective 426 24
Agranulocytosis 305 41
Hyperthyroidism 264 11
Off label use 197 6
Foetal exposure during pregnancy 195 10
Exposure during pregnancy 138 0
Hypothyroidism 120 3
Neutropenia 113 7
Maternal exposure during pregnancy 106 2
Anti-neutrophil cytoplasmic antibody positive vasculitis 105 13
View detailed side effects for this class → Compare drugs in this class →