Daclatasvir
Daclatasvir (marketed as Daklinza and Natdac) is an antiviral medication used for Chronic Hepatitis C. This direct-acting compound functions by inhibiting viral replication to assist in managing the infection. Two formulations are listed, film-coated tablets and standard tablets.
Key points
- Works by blocking the NS5A protein the hepatitis C virus needs to replicate and assemble new viral particles.
- Typically used alongside other hepatitis C medicines rather than alone, and marketed under the names Daklinza and Natdac.
- Before starting, liver function and any past hepatitis B infection are typically reviewed, with blood tests continuing through treatment.
What is Daclatasvir?
Daclatasvir is an antiviral drug frequently used as part of combination therapy to manage the replication of the hepatitis C virus. By targeting a non-structural protein of the virus, it reduces the viral load. It belongs to the Antivirals group, which is designed to block specific stages of the viral life cycle.
How does Daclatasvir work?
This drug acts as an inhibitor of the NS5A protein, which is essential for the replication of the virus and the assembly of new viral particles. By blocking this protein, the medication prevents the virus from multiplying, allowing the body to manage the infection more effectively. The specific mechanism of action provides a direct way to interrupt the viral progression within the liver.
Daclatasvir brands and forms
Available brands include Daklinza and Natdac, often found in film-coated tablet or standard tablet forms. These varieties allow for consistent oral administration. Clinicians often choose between these specific formulations based on availability and individual treatment plans, which may also be relevant within the broader scope of HIV Management.
Safety overview for Daclatasvir
What to check before using this medicine
Review your complete medical history with a doctor, specifically regarding liver function, past hepatitis B infections, or heart conditions. Regular blood monitoring is often required to ensure the medication is effective and well-tolerated.
Possible reactions and tolerability
Common responses may include fatigue, mild headache, or nausea. These symptoms are generally reported as manageable; however, persistent changes to your health or mood should be monitored closely by a healthcare professional.
Interactions and health factors
Daclatasvir may react with medications that pass through specific liver enzymes, particularly those used for heart conditions or managing seizure disorders. Always provide a list of all supplements and medications currently in use to avoid potential adverse effects.
Product labelling and verified clinical sources remain the correct references for specific contraindications, interactions and reactions.
Further reading
What is daclatasvir used for?
Daclatasvir is an antiviral medicine used for chronic hepatitis C. It is typically used alongside other hepatitis C medicines rather than alone. Available brands include Daklinza and Natdac.
How long does daclatasvir take to work?
Daclatasvir begins to take effect within the first week or two of treatment. A course usually runs for 12 to 24 weeks, and regular blood monitoring is often needed during that time.
What are the side effects of daclatasvir?
People commonly report fatigue, headache or nausea, and some also notice insomnia, dizziness or diarrhoea. More serious problems such as hepatitis B reactivation or severe bradycardia need immediate medical attention, so speak to your doctor about any change in how you feel.
Can daclatasvir be taken with other medicines?
Daclatasvir can interact with certain medicines, including amiodarone, rifampicin and St John's wort. Medicines used for heart conditions or seizure disorders may also be affected, so give your doctor or pharmacist a full list of everything you take.
Who should not take daclatasvir?
Daclatasvir is not suitable for anyone with a hypersensitivity to its active components. Before starting, a doctor will usually review your liver function, any past hepatitis B infection and any heart conditions.
What daclatasvir products are available?
Products containing daclatasvir include Natdac and Daklinza. Compare forms, strengths and packs in the listings above.
Can I buy daclatasvir over the counter in Thailand?
Yes, online. Yasabai does not ask for a prescription to order daclatasvir. We are an online store, not a dispensing pharmacy; we arrange your order and delivery on your behalf.
Ordering without a prescription →Where can I buy daclatasvir online?
Our pharmacy partners ship from India to Thailand and across Asia in discreet packaging. Standard Airmail takes up to 3 weeks; Express Tracked Courier takes up to 1 week.
How ordering works →Related articles

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