Quick Answer: Is Valtrex Safe To Take Long Term?

Can you build a tolerance to valacyclovir?

Resistance usually develops due to mutations in the thymidine kinase pathway that cause patients to become non-sensitive to acyclovir and its pro-drug valacyclovir, according to Dr.

Thimons..

Can I take antiviral everyday?

If you have outbreaks often, you may want to consider taking an antiviral drug every day. Doctors call this suppressive therapy. For someone who has more than six outbreaks a year, suppressive therapy can reduce the number of outbreaks by 70% to 80%.

Do antivirals weaken immune system?

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

What happens when you stop taking Valtrex?

If you stop taking the drug suddenly or don’t take it at all: The symptoms of your viral infection may not get better, or may get worse. If you miss doses or don’t take the drug on schedule: Your medication may not work as well or may stop working completely.

What drugs can you not take with Valtrex?

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 become resistant to antivirals?

When an influenza virus changes in the active site where an antiviral drug works, that virus shows reduced susceptibility to that antiviral drug. Reduced susceptibility can be a sign of potential antiviral drug resistance. Antiviral drugs may not work as well in viruses with reduced susceptibility.

How long does it take for Valtrex suppressive therapy to work?

When taken as soon as you notice a herpes outbreak, valacyclovir can provide relief in as little as two to three days, minimizing symptoms and reducing the risk of you passing genital herpes to sexual partners.

What time of day should I take Valtrex?

Valacyclovir may be taken with meals or on an empty stomach. If you are using the oral suspension, use a specially marked measuring spoon or other device to measure each dose accurately.

Can you take valacyclovir for years?

Valacyclovir is prescribed regularly for long-term (months to years) prophylaxis (suppression) of herpes simplex virus (HSV) mucocutaneous outbreaks, conditions that are not considered life threatening.

Is Valtrex bad for your kidneys?

Valtrex can be harmful to the kidneys, and these effects are increased when it is used together with other medicines that can harm the kidneys. Tell your doctor about all other medications you are using. You may need dose adjustments or special tests when taking certain medications together with Valtrex.

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 you drink alcohol with Valtrex?

There are no specific warnings about drinking alcohol while taking Valtrex, but you should speak with your doctor, and it may be best to avoid alcohol when using this treatment. If you drink alcohol while taking Valtrex, it can make the symptoms of the medication worse.

Does Valtrex have side effects?

Valacyclovir has several potential side effects, the most common of which (affecting more than one percent of users) are vomiting, diarrhea, headache and nausea. Less common side effects (affecting less than one percent of users) include the following: Vertigo. Dizziness.

How long does Valtrex stay in your system after stopping?

Because valacyclovir is a prodrug, it’s only active in your body for a short period of time after it’s taken. On its own, its half-life is approximately 30 minutes. However, once valacyclovir has converted into acyclovir, it has a half-life of 2.5 to 3.3 hours in people with normal renal function.

Does Valtrex make you feel sick?

While most people tolerate the medication with no problems, a small percentage of people do experience side effects from daily antiviral therapy. These side effects are usually mild and include nausea, headache, nausea, stomach pain, cold, and sore throat.

How long can 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.

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.

Does Valtrex make you pee a lot?

Drink extra fluids so you will pass more urine while you are using this medicine. This will keep your kidneys working well and help prevent kidney problems. To help clear up your infection, keep taking valacyclovir for the full time of treatment, even if your symptoms begin to clear up after a few days.

Does antiviral kill viruses?

Antiviral drugs are a class of medication used for treating viral infections. Most antivirals target specific viruses, while a broad-spectrum antiviral is effective against a wide range of viruses. Unlike most antibiotics, antiviral drugs do not destroy their target pathogen; instead they inhibit its development.

Are you contagious while taking Valtrex?

It is important to keep in mind that Valtrex is not a cure for genital herpes, and there may still be contagious lesions or shedding that occur while taking the medication. While daily treatment can reduce the risk of transmission, it isn’t 100% guaranteed that you won’t become infected.

Can Valtrex raise blood pressure?

increased heart rate, and. high blood pressure (hypertension).

Can I take vitamins with valacyclovir?

Interactions between your drugs No interactions were found between valacyclovir and Vitamin C. This does not necessarily mean no interactions exist. Always consult your healthcare provider.

Is it safe to take Valtrex every day?

A new study shows that daily therapy with the antiviral drug Valtrex significantly lowers the risk of transmitting genital herpes among heterosexual couples in which one partner is infected with the herpes simplex virus type 2 (HSV-2).

What are the long term side effects of Valtrex?

Another potential long-term side effect of valacyclovir usage is HUS/TTP, or hemolytic-uremic syndrome and thrombotic thrombocytopenic purpura. These similar disorders can lead to the destruction of red blood cells and a low platelet count, preventing your blood’s ability to clot.