Valtrex 500 mg Tablet

Who is this for?

Valacyclovir is an antiviral medicine that works by stopping certain viruses from multiplying in your body — once you swallow it, your body converts it into acyclovir, which fights the virus directly.

Inhibits viral DNA polymerase by competing with deoxyguanosine triphosphate, preventing herpesvirus DNA replication and viral spread. The drug is metabolized to acyclovir, which requires phosphorylation by viral thymidine kinase to become active, ensuring selective targeting of infected cells.

Is Valacyclovir safe to take with another drug?

For cold sores: take 2 grams (four 500 mg tablets) twice a day for just 1 day. For genital herpes (first time): take one 1,000 mg dose (two 500 mg tablets) twice a day for 10 days. For shingles: take 1,000 mg three times a day for 7 days. Swallow with a full glass of water — you can take it with or without food. Start treatment as soon as you notice symptoms for best results.

If you miss a dose, take it as soon as you remember. But if it is almost time for your next dose, skip the missed one and continue your normal schedule. Do not take a double dose to make up for it.

• Headache
• stomach pain or feeling like you want to vomit
• dizziness
• tiredness or general body weakness

Be careful if you are taking other medicines that can affect your kidneys, such as some painkillers like ibuprofen or diclofenac taken regularly. If you are on any HIV medicines, tell your doctor as some may interact. Drinking plenty of water while on this medicine helps protect your kidneys.

Store in a cool, dry place away from direct sunlight and heat — Nigerian weather can be very hot, so avoid leaving it in your car or near a window. Keep it in its original container and far away from children.