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Pibrentasvir Side Effects

The most commonly reported side effects of pibrentasvir include fatigue, headache, and nausea, based on 10,910 FDA adverse event reports from 2017 to 2025. 1.7% of reports found the drug to be ineffective.

Pibrentasvir side effects

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

1
Fatigue23.6%2,573
2
Headache20.3%2,212
3
Nausea10.4%1,132
4
Pruritus6.0%660
5
Diarrhoea4.4%482
6
Rash2.9%315
7
Vomiting2.9%312
8
Dizziness2.1%233
9
Death2.0%222
10
Pain1.9%209
11
Insomnia1.9%206
12
Abdominal Discomfort1.8%198
13
Drug Ineffective1.7%184
14
Asthenia1.5%160
15
Abdominal Pain Upper1.4%150

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

Report severity

26.0%Serious2,841 reports
12.1%Hospitalizations1,324 reports
2.7%Fatal295 reports

Seriousness is determined by the reporter, not by OpenClaim.

Pibrentasvir drug interactions

Other drugs that appear in adverse event reports alongside pibrentasvir. 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
Glecaprevir97.9%10,682
2
Sofosbuvir0.7%81
3
Velpatasvir0.4%41
4
Tenofovir0.3%33
5
Ledipasvir0.3%33
6
Ribavirin0.3%30
7
Tacrolimus0.3%30
8
Emtricitabine0.3%30
9
Lisinopril0.2%26
10
Daclatasvir-dihydrochloride0.2%21
11
Simeprevir-sodium0.2%19
12
Grazoprevir0.2%17
13
Ombitasvir0.1%13
14
Mycophenolate0.1%12
15
Dolutegravir0.1%12

Taken alongside

1
Gabapentin2.7%292
2
Aspirin2.5%273
3
Amlodipine2.5%268
4
Albuterol2.4%267
5
Lisinopril2.3%254
6
Omeprazole2.0%218
7
Acetaminophen1.9%203
8
Ibuprofen1.8%191
9
Ergocalciferol1.7%181
10
Metoprolol1.6%180
11
Furosemide1.6%171
12
Pantoprazole-sodium1.5%165
13
Glecaprevir1.5%164
14
Buprenorphine1.3%141
15
Insulin1.2%131

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 pibrentasvir side effects

43.5% of pibrentasvir adverse event reports involve female patients and 49.1% involve male patients. The largest age group is adult at 85%. These figures reflect who reports side effects, not underlying risk.

Sex

Female43.5%
Male49.1%
Unknown7.4%

Age group

< 2<0.1%
2–11<0.1%
12–17<0.1%
18–6484.8%
65+15.0%

What is pibrentasvir used for

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

Acute Hepatitis BAcute Hepatitis CAntiretroviral TherapyAntiviral ProphylaxisAntiviral TreatmentAcute Hepatitis CAntiretroviral TherapyAntiviral Drug LevelAntiviral ProphylaxisAttention Deficit Hyperactivity DisorderBipolar DisorderBreast CancerChild-pugh-turcotte ScoreChild-pugh-turcotte Score IncreasedChronic Hepatitis

Showing 15 of 79 indications

Pibrentasvir brand names and reporting trend

Pibrentasvir is sold under the brand name Mavyret.

Brand names

Mavyret110

Quarterly reports (20172025)

20182020202220242025

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

Taking pibrentasvir with another medication?

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