Antivirals
This category covers antiviral medicines that target specific viruses, mainly the hepatitis viruses and the herpes family. They work best when matched to the right infection. Both families of virus here need sustained treatment or well-timed courses, and the plan is set by which virus is involved and how established it is.

Epivir HBV
100mg
Lamivudine 100mg film-coated tablets, the hepatitis B strength, used in the management of chronic hepatitis B. It inhibits the viral reverse transcriptase.
Key points
- These medicines target specific viruses and are not interchangeable across the hepatitis and herpes families.
- Hepatitis C treatment can clear the infection, while herpes treatment shortens or suppresses episodes rather than curing them.
- Timing changes the benefit, and several work best when started early in an episode.
Classes and ingredients in this category
- Hepatitis C agents such as sofosbuvir and daclatasvir can clear the infection in a course of weeks.
- Herpes treatments like valaciclovir and famciclovir shorten and suppress outbreaks.
Conditions it covers
These medicines are used for chronic hepatitis c, chronic hepatitis b, herpes simplex and herpes zoster. Genotype, liver health and other medicines shape the regimen, which is why these are specialist rather than self-selected treatments.
Further reading
What antivirals does Yasabai sell?
Yasabai lists 15 antivirals. They contain 12 different active ingredients, including sofosbuvir, ribavirin and lamivudine. Examples include Valtrex and Molnunat.
What conditions are antivirals used for?
The antivirals on Yasabai are used for chronic hepatitis C, herpes simplex, chronic hepatitis B, herpes zoster and genital herpes. Each product page lists the conditions for that medicine.
Do antivirals come as tablets or other forms?
Mostly as tablets, with some capsules. The forms and strengths are listed on each product page.
How do I choose between the antivirals on Yasabai?
Start with the active ingredient: there are 12 different ones in this range. Products that share an ingredient contain the same medicine. Compare their strength, form and price per tablet. Each product page's details table lists uses, onset, side effects and interactions. If you take other medicines, are pregnant or have a long-term condition, check with a doctor or pharmacist first.
Will I receive branded or generic antivirals?
A branded generic or a generic: Yasabai supplies branded generics and generics only. Names such as Valtrex and Zovirax identify the medicine; you receive a generic with the same active ingredient and dose. The exact brand depends on stock.
What you will receive →How are antivirals priced?
It depends on the medicine, strength and pack size. Each product page shows the price per tablet for every option, in US dollars or the currency you choose. Larger packs usually cost less per tablet.
Payment and discounts →Do I need a prescription to buy antivirals in Thailand?
No. Yasabai does not ask for a prescription to order antivirals. We are an online store, not a dispensing pharmacy; we arrange your order and delivery on your behalf.
Ordering without a prescription →How do I order antivirals for delivery in Thailand?
Choose a product, strength and pack on Yasabai, then check out. 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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