METAMIZOLE for Headache: Side Effects & Safety Data

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There are 61 adverse event reports in the FDA FAERS database where METAMIZOLE was used for Headache.

Most Reported Side Effects for METAMIZOLE

Side Effect	Reports	%	Deaths	Hosp.
Nausea	451	8.0%	121	319
Agranulocytosis	438	7.8%	75	341
Vomiting	410	7.3%	108	322
Off label use	370	6.6%	167	228
Drug ineffective	352	6.3%	78	245
Pyrexia	322	5.7%	46	266
Dyspnoea	316	5.6%	80	195
General physical health deterioration	307	5.5%	121	248
Pain	281	5.0%	34	198
Abdominal pain	278	4.9%	107	208
Somnolence	260	4.6%	103	159
Condition aggravated	259	4.6%	102	191
Toxic epidermal necrolysis	226	4.0%	87	117
Sepsis	224	4.0%	150	162
Constipation	215	3.8%	101	145