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Ivermectin Side Effects

The most commonly reported side effects of ivermectin include off label use, asthenia, and product use in unapproved indication, based on 6,809 FDA adverse event reports from 2004 to 2025. 10.8% of reports found the drug to be ineffective.

Ivermectin side effects

Percentages show how often each reaction appears relative to total reports for ivermectin.

1
Drug Ineffective10.8%734
2
Off Label Use7.3%497
3
Asthenia6.8%463
4
Product Use In Unapproved Indication6.6%448
5
Headache6.4%439
6
Pyrexia5.3%361
7
Pruritus4.6%315
8
Erythema3.8%257
9
Ocular Hyperaemia3.5%239
10
Headache3.3%228
11
Conjunctival Haemorrhage3.3%227
12
Rash3.0%201
13
Coma2.9%195
14
Vertigo2.8%189
15
Pyrexia2.7%186

These are voluntary reports and do not establish that ivermectin caused these reactions.

Report severity

63.8%Serious4,341 reports
38.4%Hospitalizations2,613 reports
9.6%Fatal656 reports

Seriousness is determined by the reporter, not by OpenClaim.

Ivermectin drug interactions

Other drugs that appear in adverse event reports alongside ivermectin. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.

Also suspected

1
Dexamethasone2.9%199
2
Albendazole2.6%174
3
Dupilumab2.3%155
4
Methotrexate2.1%143
5
Azithromycin2.0%139
6
Prednisone1.8%125
7
Doxycycline1.7%119
8
Methylprednisolone1.7%114
9
Hydroxychloroquine-sulfate1.5%100
10
Mycophenolate1.3%88
11
Furosemide1.3%88
12
Vincristine-sulfate1.3%87
13
Amoxicillin1.2%83
14
Acetaminophen1.2%81
15
Aspirin1.1%73

Taken alongside

1
Acetaminophen5.7%390
2
Furosemide5.4%369
3
Ergocalciferol5.1%347
4
Prednisone5.0%340
5
Aspirin4.8%326
6
Levothyroxine-sodium4.3%294
7
Ondansetron4.1%276
8
Dexamethasone4.0%269
9
Doxycycline3.9%265
10
Omeprazole3.3%228
11
Albuterol3.2%215
12
Sulfamethoxazole3.1%210
13
Trimethoprim3.0%205
14
Amlodipine3.0%201
15
Gabapentin2.8%194

Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.

Who reports ivermectin side effects

46.1% of ivermectin adverse event reports involve female patients and 40.4% involve male patients. The largest age group is adult at 61%. These figures reflect who reports side effects, not underlying risk.

Sex

Female46.1%
Male40.4%
Unknown13.5%

Age group

< 20.5%
2–114.8%
12–173.3%
18–6461.5%
65+29.8%

What is ivermectin used for

Conditions and purposes for which patients were taking ivermectin when the adverse event was reported.

Abdominal Pain UpperAcariasisAcarodermatitisAcneAcne CysticAcrodermatitisAcute Coronary SyndromeAcute Myeloid LeukaemiaAcute Respiratory Distress SyndromeAntibiotic ProphylaxisAntibiotic TherapyArthropod BiteAsthmaAcarodermatitisAcne

Showing 15 of 340 indications

Ivermectin brand names and reporting trend

Ivermectin is sold under the brand name Soolantra.

Brand names

Soolantra2,939

Quarterly reports (20042025)

20052010201520202025

An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.

Taking ivermectin with another medication?

Ask OpenClaim about your specific drug combination. Get a sourced report using FDA data, drug labels, and medical literature.