Sofosbuvir / Velpatasvir

Phenobarbital

Combination not recommended.

Available pharmaceutical opinion

Document made available to the pharmacist to communicate a drug interaction to the doctor.

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Mechanism

Phenobarbital may induce CYP 3A4 and P-gp and decrease the plasma concentration of Sofosbuvir / Velpatasvir.

Sofosbuvir / Velpatasvir

Pharmacodynamic effects

Possible decrease of clinical efficacy.

Recommendations

Do not administer with potent P-gp inducers or with moderate to potent CYP2B6, 2C8 or 3A4 inducers.

Alternative solution(s)

Phenobarbital

Pharmacodynamic effects

Recommendations

Association not recommended.

Alternative solution(s)

Monitor

Tests

Pharmacokinetic parameters

Comment

Reference
  • 3250
    Sofosbuvir/Velpatasvir (Epclusa), Gilead Sciences, Ontario, Canada, 5 novembre 2020.