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Victrelis Side Effects

Generic name: boceprevir

Medically reviewed by Last updated on Oct 10, 2023.

Note: This document contains side effect information about boceprevir. Some dosage forms listed on this page may not apply to the brand name Victrelis.

Applies to boceprevir: oral capsule.


Boceprevir must be used in combination with peginterferon alfa and ribavirin.

Do not use this combination of drugs if you are pregnant, or if you are a man and your sexual partner is pregnant.

Certain other drugs may interact with boceprevir or should not be used at the same time. Tell each of your healthcare providers about all medicines you use now, and any medicine you start or stop using.

Get emergency medical help if you have any of these signs of an allergic reaction while taking boceprevir (the active ingredient contained in Victrelis) hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using boceprevir and call your doctor at once if you have:

Common side effects may include:

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

For Healthcare Professionals

Applies to boceprevir: oral capsule.


This drug must be administered in combination with peginterferon alfa and ribavirin. The manufacturer product information for peginterferon alfa and ribavirin should be consulted for associated side effects.

Serious side effects (including anemia and neutropenia) have been reported in 11% of patients receiving boceprevir (the active ingredient contained in Victrelis) combination therapy compared to 8% of patients receiving peginterferon alfa plus ribavirin alone. The side effects reported most frequently were fatigue, anemia, nausea, headache, and dysgeusia. Therapy was discontinued due to side effects in 13% of patients using boceprevir combination therapy and 12% of patients using peginterferon alfa plus ribavirin alone. The side effects leading to discontinuation most often were anemia and fatigue.[Ref]


Very common (10% or more): Anemia (up to 50%), decreased hemoglobin (up to 49%), decreased neutrophils (up to 31%), neutropenia (up to 25%)

Common (1% to 10%): Decreased platelets, leukopenia, thrombocytopenia, pancytopenia, agranulocytosis

Uncommon (0.1% to 1%): Hemorrhagic diathesis, lymphadenopathy, lymphopenia

Rare (0.01% to 0.1%): Hemolysis[Ref]

Decreased hemoglobin (less than 10 g/dL: 49%; less than 8.5 g/dL: up to 10%), decreased neutrophils (less than 0.75 x 10[9]/L: up to 31%; less than 0.5 x 10[9]/L: up to 8%), and decreased platelets (less than 50 x 10[9]/L: up to 4%; less than 25 x 10[9]/L: less than 1%) have been reported.

Agranulocytosis, pancytopenia, and thrombocytopenia have also been reported during postmarketing experience.[Ref]


Frequency not reported: Serious acute hypersensitivity reactions (e.g., urticaria, angioedema)[Ref]


Sepsis has also been reported during postmarketing experience.

Very common (10% or more): Fatigue (up to 58%), chills (up to 34%), pyrexia (up to 32%), influenza-like illness (up to 23%), asthenia (up to 21%), decreased weight (11%)

Common (1% to 10%): Pain, peripheral edema, chest discomfort, chest pain, malaise, feeling of body temperature change, mucosal dryness

Uncommon (0.1% to 1%): Feeling abnormal, impaired healing, noncardiac chest pain, staphylococcal infection, candidiasis, ear infection, ear discomfort, flushing, pallor, peripheral coldness

Rare (0.01% to 0.1%): Otitis media, sepsis


Very common (10% or more): Nausea (up to 46%), dysgeusia (up to 44%), diarrhea (up to 25%), vomiting (up to 20%), dry mouth (up to 15%)

Common (1% to 10%): Abdominal pain, upper abdominal pain, constipation, gastroesophageal reflux disease, hemorrhoids, abdominal discomfort, abdominal distention, anorectal discomfort, aphthous stomatitis, cheilitis, dyspepsia, flatulence, glossodynia, mouth ulceration, oral pain, stomatitis, tooth disorder, oral fungal infection

Uncommon (0.1% to 1%): Lower abdominal pain, gastritis, pancreatitis, anal pruritus, colitis, dysphagia, discolored feces, frequent bowl movements, gingival bleeding, gingival pain, gingivitis, glossitis, dry lip, odynophagia, proctalgia, rectal hemorrhage, salivary hypersecretion, sensitivity of teeth, tongue discoloration, tongue ulceration, gastroenteritis

Rare (0.01% to 0.1%): Pancreatic insufficiency[Ref]

Mouth ulceration and stomatitis have also been reported during postmarketing experience.[Ref]

Nervous system

Very common (10% or more): Headache (up to 45%), dizziness (up to 19%)

Common (1% to 10%): Hypoesthesia, paresthesia, syncope, amnesia, attention disturbance, memory impairment, migraine, parosmia, tremor, vertigo, tinnitus

Uncommon (0.1% to 1%): Peripheral neuropathy, cognitive disorder, hyperesthesia, lethargy, loss of consciousness, mental impairment, neuralgia, presyncope, deafness, impaired hearing

Rare (0.01% to 0.1%): Cerebral ischemia, encephalopathy[Ref]


Very common (10% or more): Insomnia (up to 34%), irritability (up to 22%), depression (up to 21%), anxiety (12%)

Common (1% to 10%): Affect lability, agitation, libido disorder, altered mood, sleep disorder

Uncommon (0.1% to 1%): Aggression, homicidal ideation, panic attack, paranoia, substance abuse, suicidal ideation, abnormal behavior, anger, apathy, confusional state, mental status changes, restlessness

Rare (0.01% to 0.1%): Bipolar disorder, completed suicide, suicide attempt, auditory hallucination, visual hallucination, psychiatric decompensation[Ref]


Very common (10% or more): Alopecia (up to 27%), dry skin (up to 22%), rash (up to 17%)

Common (1% to 10%): Dermatitis, eczema, erythema, hyperhidrosis, night sweats, psoriasis, erythematous rash, macular rash, maculopapular rash, papular rash, pruritic rash, skin lesion, cellulitis, herpes simplex

Uncommon (0.1% to 1%): Photosensitivity reaction, skin ulcer, urticaria, fungal skin infection, onychomycosis, skin infection

Postmarketing reports: Angioedema, drug rash with eosinophilia and systemic symptoms (DRESS) syndrome, exfoliative rash, exfoliative dermatitis, Stevens-Johnson syndrome, toxic skin eruption, toxicoderma[Ref]

Urticaria has also been reported during postmarketing experience.[Ref]


Very common (10% or more): Decreased appetite/anorexia (up to 26%)

Common (1% to 10%): Dehydration, hyperglycemia, hypertriglyceridemia, hyperuricemia

Uncommon (0.1% to 1%): Hypokalemia, appetite disorder, diabetes mellitus, gout, hypercalcemia

Rare (0.01% to 0.1%): Non-acute porphyria

Frequency not reported: Increased uric acid, increased triglycerides, increased cholesterol[Ref]


Very common (10% or more): Myalgia (up to 24%), arthralgia (up to 23%)

Common (1% to 10%): Back pain, pain in extremity, muscle spasms, muscular weakness, neck pain

Uncommon (0.1% to 1%): Musculoskeletal chest pain, arthritis, bone pain, joint swelling, musculoskeletal pain[Ref]


Pneumonia has also been reported during postmarketing experience.[Ref]

Very common (10% or more): Exertional dyspnea (up to 11%), cough, dyspnea

Common (1% to 10%): Bronchitis, influenza, sinusitis, epistaxis, nasal congestion, oropharyngeal pain, respiratory tract congestion, sinus congestion, wheezing

Uncommon (0.1% to 1%): Pneumonia, nasopharyngitis, pharyngitis, respiratory tract infection, rhinitis, pleuritic pain, pulmonary embolism, dry throat, dysphonia, increased upper airway secretion, oropharyngeal blistering

Rare (0.01% to 0.1%): Epiglottitis, pleural fibrosis, orthopnea, respiratory failure[Ref]


Common (1% to 10%): Palpitations, hypotension, hypertension

Uncommon (0.1% to 1%): Cardiac murmur, increased heart rate, tachycardia, arrhythmia, cardiovascular disorder, deep vein thrombosis

Rare (0.01% to 0.1%): Acute myocardial infarction, atrial fibrillation, coronary artery disease, pericarditis, pericardial effusion, venous thrombosis


Common (1% to 10%): Goiter, hypothyroidism

Uncommon (0.1% to 1%): Hyperthyroidism


Common (1% to 10%): Pollakiuria, erectile dysfunction

Uncommon (0.1% to 1%): Urinary tract infection, dysuria, nocturia, amenorrhea, menorrhagia, metrorrhagia

Rare (0.01% to 0.1%): Aspermia


Common (1% to 10%): Dry eye, retinal exudates, blurred vision, visual impairment

Uncommon (0.1% to 1%): Retinal ischemia, retinopathy, abnormal sensation in eye, conjunctival hemorrhage, conjunctivitis, eye pain, eye pruritus, eye swelling, eyelid edema, increased lacrimation, ocular hyperemia, photophobia

Rare (0.01% to 0.1%): Papilledema


Uncommon (0.1% to 1%): Hyperbilirubinemia

Rare (0.01% to 0.1%): Cholecystitis


Rare (0.01% to 0.1%): Sarcoidosis


Rare (0.01% to 0.1%): Thyroid neoplasm (nodules)


Frequency not reported: Renal impairment, GFR decreased

Frequently asked questions


1. Cerner Multum, Inc. "UK Summary of Product Characteristics."

2. EMEA. European Medicines Agency (2007) EPARs. European Union Public Assessment Reports.

3. Cerner Multum, Inc. "Australian Product Information."

4. (2011) "Product Information. Victrelis (boceprevir)." Schering-Plough Corporation

5. Rowe IA, Mutimer DJ (2011) "Protease inhibitors for treatment of genotype 1 hepatitis C virus infection." BMJ, 343, d6972

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.