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Valacyclovir COVID – How It Is Disrupting The Antiviral Market

Valacyclovir is an antiviral drug. It aids the body's fight against the sickness by decreasing the growth and spread of the herpes virus. COVID vaccination should not be delayed because of Valacyclovir COVID medicine.

What Is Valacyclovir?

Valacyclovir is used to treat adult herpes virus infections such as genital herpes, cold sores, and shingles (herpes zoster).

Valacyclovir is prescribed to children over the age of 12 for cold sores and children over the age of 2 for chickenpox.

Valacyclovir will not cure herpes or prevent it from spreading to others. This drug, on the other hand, may aid in reducing the symptoms of an infection.

Before using valacyclovir, tell your doctor if you have HIV/AIDS, a compromised immune system, renal disease (or are on dialysis), or if you have undergone a kidney or bone marrow transplant.

Valacyclovir may affect the kidneys, and its effects are heightened when used with other kidney-harming drugs.

Valacyclovir does not affect herpes. Herpes infections are contagious and might infect others if you use this medicine.

If you experience any of the following serious side effects that can harm red blood cells, stop taking valacyclovir and contact your doctor right away: fever, easy bruising or bleeding, red spots on the skin (not caused by herpes or chickenpox), bloody diarrhea, vomiting, pale or yellowed skin, weakness, fainting, or urinating less frequently or not at all.

A woman having a glass of water while taking a pill
A woman having a glass of water while taking a pill

Valacyclovir COVID And Messenger RNA Vaccination

The messenger RNA (mRNA) COVID19/SARS-CoV-2 vaccines have just one contraindication:

  • Those who have had a severe adverse response (such as anaphylaxis) to an injectable medicine or another vaccination should proceed with care and be monitored for 30 minutes after getting the vaccine.
  • Those who have had a severe adverse response to any component of the Pfizer-BioNTech COVID-19 vaccine (including polyethylene glycol) should not get the vaccination. The messenger RNA has no additional contraindications (mRNA).
  • The vaccination should be administered outside a hospital or other medical institution that can deal with severe allergic reactions (such as anaphylaxis). The first treatment to be delivered during anaphylaxis is epinephrine, which should be readily available.

Concurrent medication might make it more difficult to understand a possible unfavorable vaccination reaction to the vaccine. This potential interaction is crucial for exercising great caution while administering the COVID-19 vaccine within 14 days of another injection. Completing a well-tolerated oral medicine, such as valacyclovir therapy, is not a reason to postpone the delivery of the COVID-19 vaccination.

Do not postpone the delivery of the COVID-19 mRNA vaccination; instead, carry it out as scheduled, one day after the valacyclovir therapy is completed.

Valacyclovir As Antiviral In The Time Of COVID-19

As soon as this pandemic was recognized, hundreds of research trials were initiated to develop an antiviral cure for SARS-Covid-2. Valacyclovir was also tested as an antiviral against SARS-Covid-2.

Acyclovir's discovery towards the end of the 1970s was a game-change relating to severe encephalitic herpes. Before this, the death rate was about 80%, and many survivors suffered from long-term repercussions. Following that, mortality fell to about 20 and 10%, while 40 percent of survivors had aftereffects. Treatment initiation, as well as prompt care, were significant prognostic factors.

Valacyclovir is just an acyclovir prodrug with much-enhanced bioavailability when administered orally.

Intravenous acyclovir therapy is for immunocompromised varicella patients, newborns, and pregnant women.

Acyclovir, valacyclovir, and famciclovir are suggested in Product Characteristics for shingles, particularly in ocular shingles. One criterion is therapy begins as soon as possible, preferably within the first 72 hours. In situations of widespread shingles, people with immunodeficiency need parenteral administration.

People Also Ask

What Should I Avoid While Taking Valacyclovir?

What medications and foods should I avoid while on Valtrex (Valacyclovir)? To prevent transmitting the herpes virus to others, avoid sexual contact or use a latex condom. Allow contaminated regions to come into touch with other persons. Avoid rubbing your eyes after touching an affected area.

How Long Does Valacyclovir Take To Work?

Valtrex may take up to seven to ten days to begin working for some individuals, while others may see relief from their symptoms within a day or two. The duration of your symptoms will be determined by your age, the severity of your symptoms, and your metabolism.

When Should You Take Valacyclovir?

Valacyclovir works best when taken 48 hours after the onset of shingles or genital herpes symptoms (e.g., pain, burning, or blisters). Valacyclovir works best for recurrent outbreaks of genital herpes if taken within 24 hours of the symptoms appearing.

What Is Valacyclovir Given For?

Valacyclovir is prescribed to adults to treat herpes virus infections such as herpes labialis (cold sores), herpes zoster (shingles), and herpes simplex (genital herpes). It is also used in youngsters to treat chickenpox and cold sores.


Valacyclovir is mainly used as a treatment for herpes, but it has also shown promise as an antiviral agent against COVID-19. However, the COVID response to valacyclovir COVID requires more research before it can be suggested as a general medicine against COVID. This is necessary before the drug can be used to treat COVID.

While it is too soon to make big claims, these drugs and others that will be introduced shortly show potential in functioning as adjuncts to vaccines, dramatically decreasing the virus's prevalence and effect. COVID-19 will then resemble influenza and other respiratory viruses, which generally have a modest impact on healthy people and treatment options for those at risk of serious illness.

About The Authors

Suleman Shah

Suleman Shah - Suleman Shah is a researcher and freelance writer. As a researcher, he has worked with MNS University of Agriculture, Multan (Pakistan) and Texas A & M University (USA). He regularly writes science articles and blogs for science news website immersse.com and open access publishers OA Publishing London and Scientific Times. He loves to keep himself updated on scientific developments and convert these developments into everyday language to update the readers about the developments in the scientific era. His primary research focus is Plant sciences, and he contributed to this field by publishing his research in scientific journals and presenting his work at many Conferences. Shah graduated from the University of Agriculture Faisalabad (Pakistan) and started his professional carrier with Jaffer Agro Services and later with the Agriculture Department of the Government of Pakistan. His research interest compelled and attracted him to proceed with his carrier in Plant sciences research. So, he started his Ph.D. in Soil Science at MNS University of Agriculture Multan (Pakistan). Later, he started working as a visiting scholar with Texas A&M University (USA). Shah’s experience with big Open Excess publishers like Springers, Frontiers, MDPI, etc., testified to his belief in Open Access as a barrier-removing mechanism between researchers and the readers of their research. Shah believes that Open Access is revolutionizing the publication process and benefitting research in all fields.

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