Hepatitis C Drug Summary

Last updated: 01 December 2025

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Antivirals


Drug Dosage Duration Remarks
Dasabuvir + Ombitasvir/Paritaprevir/Ritonavir 1 tab (Dasabuvir 250 mg) PO 12 hourly +
2 tab (Ombitasvir 12.5 mg/Paritaprevir 75 mg/Ritonavir 50 mg) PO 24 hourly in the morning

Genotype 1a
Without cirrhosis:
12 weeks with Ribavirin 
With compensated cirrhosis: 24 weeks with Ribavirin 
Genotype 1b
With or without compensated cirrhosis:

12 weeks 

Adverse Reactions

  • Monotherapy (without Ribavirin): Fatigue, headache
  • In combination with Ribavirin: Fatigue, nausea, pruritus, insomnia
  • Hepatic effects (hepatic decompensation, hepatic failure); Other effect (hypersensitivity reactions) 
Special Instructions
  • Test all patients for evidence of current or prior HBV infection before treatment initiation 
  • Avoid use in patients with hypersensitivity to the components, moderate to severe hepatic impairment and concurrent use of moderate or strong inducers of CYP3A, strong inducers or inhibitors of CYP2C8 
  • Use with caution in patients with severe renal impairment or ESRD requiring dialysis, post-liver transplant patients or patients with HCV/HBV coinfection
  • Monitor LFTs during the first 4 weeks of treatment and when clinically indicated thereafter; monitor for signs and symptoms of hepatic decompensation
Elbasvir/Grazoprevir 1 tab (Elbasvir 50 mg/Grazoprevir 100 mg) PO 24 hourly

Genotype 1a and 4
Treatment-naive or PEG/RBV-experienced:
12 weeks
Treatment-naive or PEG/RBV-experienced with baseline NS5A polymorphisms: 16 weeks with Ribavirin 
Genotype 1b
Treatment-naive or PEG/RBV-experienced:
12 weeks
Treatment-naive without cirrhosis: 8 weeks
Genotype 1a or 1b
PEG/RBV/protease inhibitor-experienced:
12 weeks with Ribavirin
Genotype 3
Treatment-naive:
12 weeks with Sofosbuvir

Adverse Reactions

  • GI effects (nausea/vomiting, dyspepsia); Other effects (anemia, decreased hemoglobin, insomnia, headache, dyspnea, pruritus, myalgia, fatigue, asthenia)
Special Instructions
  • Perform hepatic laboratory testing prior to therapy, at treatment week 8; additional testing at treatment week 12 in patients receiving 16 weeks therapy
  • Avoid use in patients with moderate and severe hepatic impairment and taking organic anion transportation polypeptide 1B inhibitors or strong CYP3A inducers
Glecaprevir/Pibrentasvir 3 tabs (Glecaprevir 100 mg/Pibrentasvir 40 mg) PO 24 hourly

Without prior HCV therapy with or without cirrhosis:
8 weeks
Genotype 1, 2, 4, 5, 6 treatment-experienced to PEG/RBV with or without Sofosbuvir, or Sofosbuvir with Ribavirin without cirrhosis: 8 weeks
Genotype 1, 2, 4, 5, 6 treatment-experienced to PEG/RBV with or without Sofosbuvir, or Sofosbuvir with Ribavirin with cirrhosis: 12 weeks
Genotype 3 treatment-experienced to PEG/RBV with or without Sofosbuvir, or Sofosbuvir with Ribavirin with or without cirrhosis:
16 weeks 

Adverse Reactions

  • GI effects (nausea, diarrhea); Other effects (headache, fatigue, asthenia)
Special Instructions
  • Perform HBV screening before initiation of therapy due to risk of HBV reactivation in HBV/HCV coinfected patients during or after treatment
  • Use with caution in patients with liver transplant history, galactose intolerance, Lapp lactase deficiency or glucose-galactose malabsorption
  • Contraindicated in patients with moderate to severe hepatic impairment; concomitant use with Atazanavir-containing products, Atorvastatin, Simvastatin, Dabigatran etexilate, Ethinyl estradiol-containing products, strong P-glycoprotein (P-gp) and CYP3A inducers
  • Not recommended for retreatment of patients with prior exposure to NS3/4A and/or NS5A inhibitors
Sofosbuvir/Ledipasvir 1 tab (Sofosbuvir 400 mg/Ledipasvir 90 mg) PO 24 hourly

Genotype 1
For treatment-naive patients without cirrhosis or with compensated cirrhosis and treatment-experienced patients without cirrhosis:

12 weks
Combination with Ribavirin for patients with Child-Pugh class B or C: 12 weeks
For treatment-experienced patients with compensated cirrhosis:
24 weeks
Genotype 4
For treatment-naive and treatment-experienced liver transplant recipients without cirrhosis or with compensated cirrhosis:
12 weeks
Combination with Ribavirin for patients with Child-Pugh class B or C: 12 weeks
May increase to 24 weeks for patients unable to tolerate Ribavirin 
Genotype 5 or 6
For treatment-naive and treatment-experienced patients without cirrhosis or with compensated cirrhosis:
12 weeks
Combination with Ribavirin for treatment-naive patients with Child-Pugh class B or C: 12 weeks
Combination with Ribavirin for treatment-experienced patients with Child-Pugh class B or C: 24 weeks 

Adverse Reactions

  • GI effects (nausea, diarrhea); Other effects (fatigue, insomnia, headache)
Special Instructions
  • Avoid use in patients with hypersensitivity to components of the drug and concomitant use of potent P-gp inducers and Rosuvastatin 
  • Patients taking beta-blockers or those with underlying cardiac comorbidities and/or advanced liver disease may be at increased risk for symptomatic bradycardia with co-administration of Amiodarone
Sofosbuvir/Velpatasvir
1 tab (Sofosbuvir 400 mg/Velpatasvir 100 mg) PO 24 hourly
Patients without cirrhosis or with compensated cirrhosis: 12 weeks
Patients with decompensated cirrhosis and genotype 3 patients with compensated cirrhosis:
12 weeks with Ribavirin 
Patients who have previously failed therapy with an NS5A-containing regimen: 24 weeks with Ribavirin 
Adverse Reactions
  • Fatigue, nausea, headache
Special Instructions
  • Use with caution in patients with severe bradycardia and heart block
  • Concomitant use with moderate P-gp or CYP inducers is not recommended
  • No dose adjustment required in patients with hepatic impairment or mild or moderate renal impairment
 
Sofosbuvir/Velpatasvir/Voxilaprevir  1 tab (Sofosbuvir 400 mg/Velpatasvir 100 mg/Voxilaprevir 100 mg) PO 24 hourly 
Treatment-naive patients without cirrhosis: 8 weeks Treatment-naive patients with compensated cirrhosis: 12 weeks
Genotype 3 treatment-naive patients with compensated cirrhosis:
8 weeks
Treatment-experienced patients with or without cirrhosis: 12 weeks  
Adverse Reactions
  • CNS effects (headache, insomnia, asthenia); Other effects (fatigue, GI upset, back pain, HBV reactivation, symptomatic bradycardia, increased lipase, CK or bilirubin)
Special Instructions
  • Use with caution in patients with moderate-severe hepatic impairment and severe renal impairment
  • Other precautions include HBV reactivation; symptomatic bradycardia when Sofosbuvir is co-administered with Amiodarone and another HCV DAA; use with potent inducers of P-gp and/or moderate to potent inducers of CYP 
  • Contraindicated with concomitant Rifampicin and Rosuvastatin

Interferons With or Without Ribavirin


Drug Dosage Duration Remarks
Interferon alfa-2a Monotherapy
Chronic Hepatitis C

3 MIU SC 3x/week 
Alternative dose:
Induction therapy:

6 MIU SC 3x/week followed by 
Maintenance therapy:
3 MIU SC 3x/week

12 months


3 months

9 months

Interferons
Adverse Reactions
  • Influenza-like symptoms (fatigue, fever, headache, myalgia, arthralgia); CNS effects (depression, mood swings, irritability, somnolence); Hematologic effects (granulocytopenia, thrombocytopenia); CV effects (chest pain, edema, hypertension); Other effects (pain at injection site, dyspepsia, alopecia, thyroid function abnormalities)
  • May cause or aggravate fatal or life-threatening infectious or ischemic disorders
Special Instructions
  • Contraindicated in patients with decompensated liver disease, autoimmune hepatitis
  • Use with caution in patients with hepatic or renal impairment, depression or psychiatric disorders, CVD, arrhythmias, hypertension, pre-existing thyroid disease
  • Maintain adequate hydration during treatment
  • Withdraw drug if jaundice occurs
  • Monitor LFTs
Ribavirin
Adverse Reactions

  • Hemolytic anemia, fatigue, itching rash, sinusitis, gout, birth defects
Special Instructions
  • Do not give to patients with conditions that may be exacerbated by Ribavirin-induced hemolysis
  • Use with caution in patients with hepatic or renal impairment
  • Contraindicated in pregnancy and in patients who may become pregnant
  • Low initial dose of Ribavirin (600 mg) is recommended for patients with Child-Turcotte-Pugh class C
Interferon alfa-2a + Ribavirin  Chronic Hepatitis C in combination with Ribavirin: 3-4.5 MIU SC/IM 3x/week +
Ribavirin:
<75 kg:
400 mg PO in the morning and 600 mg PO in the evening 
≥75 kg: 600 mg PO 12 hourly 
6 months
Interferon alfa-2b Chronic Hepatitis C:
3 MIU SC/IM 3x/week
18-24 months
Interferon alfa-2b + Ribavirin  Chronic Hepatitis C in combination with Ribavirin:
3 MIU SC 3x/week +
Ribavirin:
≤75 kg:
400 mg PO in the morning and 600 mg PO in the evening
>75 kg: 600 mg PO 12 hourly 
6-24 months
Interferon alfacon-1 
Chronic Hepatitis C:
9 mcg SC 3x/week (as initial treatment) 6 months
Followed by 15 mcg SC 3x/week if needed 
6 months


12 months 
Interferon alfacon-1 + Ribavirin  Chronic Hepatitis C in combination with Ribavirin:
15 mcg SC 24 hourly +
Ribavirin:
<75 kg:
500 mg PO 12 hourly
≥75 kg: 600 mg PO 12 hourly 
12 months
Peginterferon alfa-2a  Chronic Hepatitis C:
180 mcg SC once weekly 
12 months
Peginterferon alfa-2a + Ribavirin  Chronic Hepatitis C in combination with Ribavirin
Genotype 1 or 4: 
180 mcg SC once weekly +
Ribavirin:
<75 kg:
1,000 mg/day PO 
≥75 kg: 1,200 mg/day PO 
Genotype 2 or 3:
180 mcg SC once weekly + 
Ribavirin: 800 mg/day PO 


Genotype 1 or 4:
12 months



Genotype 2 or 3:
6 months
Peginterferon alfa-2b
Chronic Hepatitis C:
0.5-1 mcg/kg SC once weekly 
6-12 months 
Peginterferon alfa-2b + Ribavirin Chronic Hepatitis C in combination with Ribavirin:
1.5 mcg/kg SC once weekly +
Ribavirin:<65 kg: 800 mg/day PO divided 12 hourly 
65-85 kg: 1,000 mg/day PO divided 12 hourly 
86-105 kg: 1,200 mg/day PO divided 12 hourly 
>105 kg: 1,400 mg/day PO divided 12 hourly

Genotype 1 or 4:
12 months

Genotype 2 or 3: 6 months

Other Antivirals


Drug Dosage Duration Remarks
Daclatasvir Chronic Hepatitis C:
60 mg PO 24 hourly 

Genotype 1 without cirrhosis: Plus Sofosbuvir x 12 weeks 
Genotype 1 with compensated cirrhosis: Plus Sofosbuvir x 24 weeks
Genotype 3 without cirrhosis:
Plus Sofosbuvir x 12-24 weeks
Genotype 3 with compensated cirrhosis:
Plus Sofosbuvir (with or without Ribavirin) x 16 weeks
Genotype 4: Plus Sofosbuvir and Peginterferon alfa x 24 weeks

Adverse Reactions

  • Daclatasvir + Sofosbuvir: Fatigue, headache, nausea 
Special Instructions
  • Use with caution in patients with decompensated liver disease, pregnancy and contraception requirement, pre-, peri- or post-liver transplant, HCV/HIV, HBV coinfection, rare hereditary problems
  • Dose may be increased or decreased when used concomitantly with cytochrome P450 3A/4 inducers and inhibitors
    • Avoid co-administration with strong inducers of CYP3A4
Ravidasvir Chronic Hepatitis C:
200 mg PO 24 hoourly

In combination with Sofosbuvir
Patient without cirrhosis:

12 weeks
Patient with cirrhosis: 
24 weeks

Adverse Reactions

  • Ravidasvir + Sofosbuvir: CNS effects (headache, dizziness, insomnia, somnolence); GI effects (nausea, vomiting, diarrhea, constipation, dyspepsia, abdominal pain); Dermatologic effects (pruritus, rash, dermatitis); Other effects (fatigue, increased AST) 
Special Instructions
  • Avoid co-administration with potent Pg-p inducers (eg Carbamazepine, Phenobarbital, Phenytoin, Rifampicin, St John's wort)
  • Must not to be used as monotherapy
  • Use with caution in patients with renal impairment, HCV/HBV coinfection, patients with genotypes 2, 4, 5 and 6 HCV infection; patients with DM, renal impairment, severe hepatic impairment, post-liver transplant
Sofosbuvir Chronic Hepatitis C:
400 mg PO 24 hourly 

In combination with Ribavirin
Genotype 1, 4, 5 or 6:

24 weeks
Genotype 2: 12 weeks
Genotype 3: 24 weeks
In combination with Ribavirin and Peginterferon alfa
Genotype 1, 4, 5 or 6:

12 weeks 
Genotype 3: 12 weeks

Adverse Reactions

  • CNS effects (headache, insomnia, irritability); Dermatologic effects (pruritus, skin rash); GI effects (nausea, diarrhea, decreased appetite); Hematologic effects (anemia, neutropenia); Other effects (fatigue, fever, flu-like symptoms, chills, myalgia)
Special Instructions
  • Avoid use in patients with hypersensitivity to Sofosbuvir, during pregnancy and concomitant use with Amiodarone and potent P-gp inducers
  • Use with caution in patients with renal impairment, HCV/HBV coinfection, treatment-experienced patients with genotype 1, 4, 5 and 6 HCV infection; patients with genotype 5 and 6 HCV infection; interferon-free regimens for patients with genotype 1, 4, 5 and 6 HCV infection; concomitant with other DAAs against HCV

Protease Inhibitors


Drug Dosage Remarks
Asunaprevir Chronic Hepatitis C in combination with Daclatasvir, or Daclatasvir, Peginterferon alfa and Ribavirin
Genotype 1 or 4 (treatment-naive or treatment-experienced, with or without compensated cirrhosis):

100 mg PO 12 hourly
Duration: 24 weeks
Adverse Reactions
  • In combination with Daclatasvir, Peginterferon alfa and Ribavirin: CNS effects (headache, asthenia, insomnia); GI effects (diarrhea, nausea); Other effects (rash, dry skin, alopecia, anemia, cough, irritability, pyrexia, fatigue, pruritus, flu-like illness, myalgia)
Special Instructions
  • Must not be used as monotherapy
  • Monitor liver enzymes and bilirubin levels at least once every 2 weeks for the initial 12 weeks of treatment, and every 4 weeks thereafter until completion of therapy; more frequent monitoring for any upward trend in ALT or AST levels
  • Avoid in patients with moderate or severe hepatic impairment and with decompensated liver disease
  • Avoid co-administration with Thioridazine, moderate or strong CYP3A inducers or inhibitors, strong OATP 1B1 inhibitors
Boceprevir Chronic Hepatitis C
Genotype 1: 
800 mg PO 8 hourly 
Max dose: 2,400 mg/day
Duration:
Patients with compensated cirrhosis:

Initial 1 month of Peginterferon alfa and Ribavirin therapy followed by 11 months of Boceprevir with Peginterferon alfa and Ribavirin
Patients without cirrhosis and are not previously treated or those who have failed prior therapy with Peginterferon alfa and Ribavirin: Initial 1 month of Peginterferon alfa and Ribavirin then Boceprevir added to regimen the course of which is determined by patient’s HCV-RNA levels
Adverse Reactions
  • GI effects (nausea, taste disturbance, decreased appetite); Dermatologic effects (rashes, pruritus, dry skin); Other effects (headache, fatigue, blood dyscrasias, metabolic disturbances, palpitations, cough)
Special Instructions
  • Should be taken with meals
  • Must not be used as monotherapy, used in combination with Peginterferon alfa and Ribavirin
  • Use with caution in patients at risk for prolongation of QT interval
  • Contraindicated in patients with autoimmune hepatitis and concurrent use of drugs that are inducers of or metabolized by cytochrome P450 isoenzymes
Simeprevir Chronic Hepatitis C genotype 1 or 4 with compensated liver disease in combination with other antivirals:
150 mg PO 24 hourly 
Treatment duration varies according to regimen used
Adverse Reactions
  • GI effects (nausea, constipation); Dermatologic effects (rashes, pruritus); Other effects (dyspnea, increased blood bilirubin, photosensitivity reaction)
Special Instructions
  • Should be administered with other medicinal products (eg Sofosbuvir, Peginterferon α, Ribavirin)
  • Avoid use in patients with hypersensitivity to Simeprevir, moderate or severe hepatic impairment and concomitant use w/ CYP34A inducers or inhibitors 
  • Use with caution in patients with hepatic decompensation and hepatic failure

Immunological

OTHER THERAPEUTIC AGENT

Drug Dosage Remarks
Thymosin alpha-1 
(Thymalfasin)
Chronic Hepatitis C in combination with Interferon therapy:
1.6 mg SC 2x/week x 12 months 
Adverse Reactions
  • Discomfort at injection site, redness, polyarthralgia with hand edema and rash
Special Instructions
  • Use with caution in pregnant and lactating women
  • Monitor liver functions regularly
  • Contraindicated in patients with hypersensitivity to Thymosin alpha-1 and those immunosuppressed following transplantation

Disclaimer

All dosage recommendations are for non-elderly adults with normal renal and hepatic function unless otherwise stated.   
Not all products are available or approved for above use in all countries.  
Products listed in the Drug Summary are based on indications stated in the locally approved product monographs.   
Please refer to local product monographs in Related MIMS Drugs for country-specific prescribing information.