Quick Answer: Can Valacyclovir Cause Kidney Damage?

Do antivirals weaken immune system?

Whereas AZT, ribavirin, or ganciclovir were antiproliferative, ddI or acyclovir had little, if any, effect on PBMC mitogenesis.

The inhibitory effects of antivirals on immune cells may contribute to the immune deterioration observed in patients following prolonged use of the drugs..

How long should you take valacyclovir?

For treatment of genital herpes, recurrent outbreaks: Adults—500 milligrams (mg) two times a day for three days. Children—Use and dose must be determined by your doctor.

How long does 500 mg Valtrex stay in your system?

How long does valacyclovir stay in your system? Valtrex stays in the system for approximately 22 to 25 hours. However, the FDA reports it is detectable in urine for up to 96 hours (4 days) after the last dose.

Can Valtrex cause weight gain?

It’s unknown whether Valtrex causes other adverse effects like hair loss, weight gain, dry mouth, or any other symptoms not listed by the United States Food and Drug Administration (FDA). This is not a complete list of side effects. Other side effects may occur.

Can Valtrex cause kidney failure?

In conclusion, valacyclovir is a drug that should be prescribed with caution in the elderly population, since it can produce acute renal failure that delays its elimination, increasing the risk of adverse effects, such as neurotoxicity.

Can acyclovir cause kidney problems?

Although the drug is well tolerated, severe nephrotoxicity, which often leads to acute renal failure, has been observed in patients [4, 7]. Acyclovir-induced renal failure occurs in approximately 12–48 % of cases [4].

Is it safe to take valacyclovir everyday?

CHARLESTON, S.C. — Once-daily treatment with valacyclovir for the suppression of genital herpes caused by herpes simplex virus type 2 was well tolerated for up to 20 months in a recent study.

What can you not take with valacyclovir?

Some products that may interact with this drug include: other drugs that may cause kidney problems (including nonsteroidal anti-inflammatory drugs-NSAIDs such as ibuprofen, naproxen). Valacyclovir is very similar to acyclovir. Do not use medications containing acyclovir while using valacyclovir.

Can you drink alcohol while taking valacyclovir?

Doctors recommend not to consume alcohol while taking valacyclovir, as the combination of valacyclovir and alcohol can potentially lead to an excessive, dangerous level of dizziness or drowsiness.

Is Valtrex bad for your liver?

In Closing. Valacyclovir is not considered a liver toxic drug. With a Category D rating from LiverTox, it’s well behind common drugs such as aspirin in terms of liver injury risk. When taken at a normal dose, valacyclovir is highly unlikely to cause liver damage in individuals with normal liver health.

Is long term use of valacyclovir safe?

On the whole, it’s a safe and effective medication that’s used by millions of people around the world without any significant issues. Because valacyclovir is typically used only when outbreaks occur, it’s very unlikely that a typical user will be affected by any of the potential long-term effects of valacyclovir usage.

What are the side effects of Valtrex?

Side effects of Valtrex include:headache,dizziness,tired feeling,depression,nausea,vomiting,stomach pain,joint pain,More items…

How long can you stay on valacyclovir?

For adults with shingles, 1,000mg of valacyclovir three times daily, for a total of seven days. It’s recommended to begin treatment within 72 hours of noticing shingles. For adults with cold sores, a dose of 2,000mg of valacyclovir is typically used, with a secondary dose of 2,000mg within 12 hours.