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.

Opioid Antagonist [EPC] — Common Side Effects

Boost Your Natural Energy & Metabolism

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

Try Mitolyn Now
Side Effect Total Reports Drugs Deaths Hosp. Life-Threat.
Injection site reaction 4,360 1 5 213 6
Injection site pain 3,001 2 4 155 9
Drug ineffective 2,283 6 195 575 169
Nausea 2,138 6 20 219 19
Alcoholism 1,928 1 17 255 7
Injection site mass 1,849 1 1 88 7
Pain 1,707 5 21 229 6
Fatigue 1,583 4 8 177 2
Drug dependence 1,523 2 96 207 17
Off label use 1,418 6 62 192 47
Feeling abnormal 1,389 5 3 73 6
Headache 1,385 5 4 112 12
Malaise 1,275 6 13 159 3
Diarrhoea 1,172 6 33 187 11
Vomiting 1,165 5 26 244 13
Insomnia 1,112 4 3 121 6
Anxiety 1,048 4 7 113 7
Overdose 983 3 464 288 97
Dizziness 952 6 5 100 5
Death 952 5 942 41 15
Injection site induration 866 1 0 59 6
Depression 825 4 10 98 9
Decreased appetite 822 5 5 81 11
Toxicity to various agents 816 3 605 309 85
Drug withdrawal syndrome 771 6 14 205 25
Tremor 732 6 10 97 14
Withdrawal syndrome 730 5 19 138 14
Therapeutic response shortened 658 1 3 20 2
Abdominal pain upper 648 5 1 70 3
Injection site swelling 638 1 0 56 2
← Back to Opioid Antagonist [EPC] Compare drugs in this class →