Compared to Famvir, Valtrex appears to be more effective at suppressing viral shedding when taken daily. Of the three medications, Valtrex is the only one approved for reducing the transmission of genital herpes.
How long does Valtrex take to work to prevent transmission?
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.
Can you take valacyclovir as a preventative?
Prophylactic valacyclovir (1 g daily) lowered the incidence of individual outbreaks by 89.5%. Conclusions: Prophylactic use of valacyclovir 1 g once a day is efficacious in lowering the incidence of HSV outbreaks among adolescents at a 28-day wrestling camp.
What should I avoid while taking 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 I take 2 Valtrex at once?
The standard dosage of valacyclovir for managing a primary oral herpes outbreak is 2,000 mg every 12 hours for one day (two doses in total).
How long does it take Valtrex to clear up an outbreak?
For most initial herpes outbreaks and cases of recurring herpes, valacyclovir takes effect very quickly and provides some level of relief in as little as two to three days. Generally, the sooner you take valacyclovir after noticing symptoms, the faster it will be to provide relief.
Who should not take Valtrex?
Who should not take VALTREX?
- hemolytic uremic syndrome, a condition that affects the kidney and the blood.
- thrombotic thrombocytopenic purpura, a type of blood disorder.
- chronic kidney disease stage 3B (moderate)
- chronic kidney disease stage 4 (severe)
- chronic kidney disease stage 5 (failure)
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.
Are you still contagious while taking Valtrex?
When it comes to preventing the transmission of herpes, valacyclovir can be helpful but shouldn’t be relied on as a 100% effective solution. Study data shows that people with symptomatic herpes who take valacyclovir are almost 50% less likely to transmit the virus to others than non-medicated people with herpes.
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.
Is it safe to take Valtrex every day?
Conclusions: Once-daily suppressive therapy with valacyclovir significantly reduces the risk of transmission of genital herpes among heterosexual, HSV-2-discordant couples.
Is Valtrex hard on 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.
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.
Can Valtrex cause weight gain?
Valtrex (valacyclovir) and other antiviral medications can only treat the symptoms associated with herpes infections and shorten outbreaks. Does Valtrex (valacyclovir) make you gain weight? Weight changes are not commonly reported with the use of Valtrex (valacyclovir).
How much does valtrex reduce risk of transmission 2021?
One study of valacyclovir showed that taking suppressive therapy can reduce the chances of transmitting the virus by approximately one-half.
What to put on shingles once they scab?
Put cornstarch or baking soda on the sores to help dry them out so they heal faster. Do not use thick ointment, such as petroleum jelly, on the sores. This will keep them from drying and healing. To help remove loose crusts, soak them in tap water.
How long should you take valacyclovir?
Valacyclovir comes as a tablet to take by mouth. It is usually taken every 8 hours (three times a day) for 7 days to treat shingles. To treat genital herpes it is usually taken twice a day for 5 days.
Is 2 grams of Valtrex too much?
The recommended dosage is 2 grams twice daily, taken 12 hours apart, for one day. Valtrex should be started at the earliest signs of a cold sore.
What is the maximum amount of Valtrex you can take?
Adults—2000 milligrams (mg) every 12 hours for one day. Children 12 years of age and above—2000 milligrams (mg) every 12 hours for one day. Children below 12 years of age—Use and dose must be determined by your doctor.
How fast does Valtrex work shingles?
It may take up to three days before a reduction in symptoms occurs. Even if symptoms fully abate, valacyclovir should be taken until the prescribed course has been completed. Best started within 24-48 hours of symptom onset.
Can I drink caffeine with valacyclovir?
When it comes to caffeine and Tylenol, two of the things most likely to be consumed while on Valtrex, it’s okay to take them unless told otherwise by a medical professional.
Can you drink alcohol on valacyclovir?
Although no drug interactions exist between alcohol and Valtrex, it is still best to avoid alcohol while taking the medication. Alcohol can impair your immune system, making your infection harder to treat. Further, both drinking and Valtrex can cause nausea, potentially worsening that side effect.
Do you have to eat while taking valacyclovir?
Take valacyclovir by mouth, with or without food, as directed by your doctor. Drink plenty of fluids while taking this medication to lower the chance of side effects. The dosage and length of treatment are based on your type of infection, medical condition, and response to treatment.