METHYLNALTREXONE for Constipation: Side Effects & Safety Data

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There are 388 adverse event reports in the FDA FAERS database where METHYLNALTREXONE was used for Constipation.

Most Reported Side Effects for METHYLNALTREXONE

Side Effect	Reports	%	Deaths	Hosp.
Death	214	25.9%	214	4
Drug ineffective	148	17.9%	3	16
Constipation	57	6.9%	1	12
Abdominal pain	54	6.5%	1	13
Diarrhoea	41	5.0%	0	10
Nausea	35	4.2%	1	4
Abdominal pain upper	33	4.0%	0	5
Off label use	29	3.5%	2	3
Vomiting	29	3.5%	0	6
Pain	26	3.2%	0	4
Abdominal distension	24	2.9%	0	5
Hospitalisation	24	2.9%	2	24
Therapy interrupted	21	2.5%	2	6
Headache	20	2.4%	0	2
Hyperhidrosis	20	2.4%	0	3