Daclatasvir is a medication used in the treatment of chronic hepatitis C virus (HCV) infection. It belongs to a class of drugs known as direct-acting antivirals (DAAs).

Daclatasvir works by targeting a specific protein in the HCV, known as NS5A, which is essential for the virus’s replication and survival. By inhibiting the NS5A protein, daclatasvir disrupts the viral life cycle and helps to suppress the HCV infection.


The medication is typically taken orally in the form of tablets. It is often prescribed in combination with other antiviral medications, such as sofosbuvir, to form a complete treatment regimen tailored to the specific genotype of the HCV and the individual’s treatment history.

Common side effects of daclatasvir may include headache, fatigue, nausea, and diarrhea. These side effects are generally mild and transient. More serious side effects, such as liver problems or allergic reactions, can occur but are rare. Regular monitoring of liver function and viral load may be recommended during treatment.


Daclatasvir should only be used under the guidance and prescription of a qualified healthcare professional experienced in the treatment of HCV infection. It may interact with other medications, so it is important to inform the healthcare provider about all medications being taken, including over-the-counter drugs and supplements.

In summary, daclatasvir is a medication used in the treatment of chronic HCV infection. It targets the NS5A protein in the virus to disrupt its replication. Regular monitoring and adherence to healthcare provider instructions are important during daclatasvir treatment.

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