Zovirax: Medication for Cold Sores, Herpes and Other Viral Infections
Zovirax is the brand name for acyclovir, a synthetic nucleoside analogue active against herpes viruses. It is an antiviral drug.
What is the medicine used to treat?
The drug is used for the treatment of primary and chronic recurrent infections caused by viruses of the genus Varicella-zoster or Herpes simplex. Its systematic use reduces the likelihood of an increase in areas of rashes on the skin or mucous membranes and, in addition, reduces the risk of developing visceral complications. It accelerates the formation of crusts in the area of the rash, reduces the severity of pain during exacerbation of herpes zoster.
It is used for the treatment of genital lesions in persons with reduced and normal immunity and the treatment or prevention of shingles. It helps to reduce the likelihood of exacerbations of herpes infections in those who suffer from an immune system dysfunction caused by bone marrow transplantation or anticancer chemotherapy.
How quickly does Zovirax work?
It may take up to two hours to reach peak plasma concentrations after acyclovir administration. It may take up to three days for symptom reduction; however, the medicine should be taken until the course prescribed by a doctor is completed. The drug works best when started within 48 hours of symptom onset. If you do not feel better after four days of using the medicine, consult a doctor.
Is it an antibiotic?
No, it is an antiviral drug. It slows the growth and spread of the herpes virus in the body. The medicine is used to treat infections caused by herpes viruses, such as genital herpes, cold sores, shingles, and chickenpox.
Does the drug speed up healing?
Yes, the medicine can speed up healing of the sores and decrease symptoms (tingling, pain, burning, itching). However, this medication does not cure herpes and it does not prevent passing the infection to someone else.
How to take this medicine?
The tablet form of Acyclovir is used to treat lesions on the mucous membranes or skin caused by a viral infection.
The available Zovirax dosages are 200mg, 400mg, and 800mg.
Adults usually take 1 tab. 5 times a day; 1 tab. and 4 times a day for the prevention of relapse. When treating shingles, you should take 4 tablets 5 times a day. Children aged 2 years and older usually take an adult dosage. Children who have not reached 2 years of age take half the adult dose.
Who should not take acyclovir?
Contraindications for use include hypersensitivity to acyclovir, valacyclovir; lactation period (breastfeeding); children under 3 years of age; lactase deficiency, lactose intolerance, glucose-galactose malabsorption (for dosage forms containing lactose).
With caution: chronic renal failure; conditions accompanied by dehydration (including vomiting, diarrhea); pregnancy.
When should I stop using Zovirax?
The medicine is very well tolerated, however, in some cases, it may cause side effects: vomiting, nausea, diarrhea, headaches, and various allergic reactions. If you have any of the mentioned side effects, stop using the medicine and consult a doctor.
Do antivirals weaken the immune system?
Antivirals like acyclovir rarely cause a life-threatening disorder that affects the blood cells, kidneys, and other parts of the body. This disorder is more likely to occur if the patient has conditions related to a weakened immune system (such as HIV disease, bone marrow transplant, kidney transplant). The inhibitory effects of antivirals on immune cells may contribute to the immune deterioration observed in patients following prolonged use of the drugs.
Can acyclovir interact with other drugs?
Drugs that block tubular secretion (for example, probenecid and cimetidine) can increase the concentration of acyclovir in the blood plasma, increase the AUC of acyclovir, and decrease its renal clearance. However, dose adjustment is not required due to the wide range of therapeutic doses of acyclovir.
Mycophenolate mofetil can increase the AUC of acyclovir and the inactive metabolite of mycophenolate mofetil.
Can I use this medicine when pregnant?
The features of acyclovir action during lactation or pregnancy are poorly understood, therefore, they are prescribed to pregnant and nursing women very rarely.
Where to buy these pills?
You can purchase this medication at United Way Pharmacy. This is a convenient online pharmacy that offers to buy inexpensive antiviral and other drugs online. Here you can buy a wide range of goods for beauty and health at the lowest prices. In our pharmacy, you do not have to use discount coupons and know the secret promo codes – we always have the lowest price for Zovirax and favorable conditions.
We work around the clock and our clients have the opportunity to buy all the necessary drugs in one place. Here you can take your time and read the product description and compare prices. Here you can order drugs with home delivery at any time of the day.
A simple and understandable search and comparison system allow you to find the required medicine in a matter of seconds. If you need the medicine urgently, you can opt for express delivery.
Our online pharmacy is very attentive to the storage of medicines in accordance with all the norms and requirements established by manufacturers, which guarantees high-quality drug delivery from the pharmacy to the buyer. With United Way Pharmacy, you can forget about the tedious search for medicines in the city, when you are sick, feel unwell, or simply do not want to leave home – the couriers will become your reliable assistants.
Is the medicine over the counter?
Generic Zovirax is available over-the-counter (OTC) but you still need to use it carefully to get the best results from it. Keep the drug leaflet, you may need to read it again. If you have any further questions, ask your doctor or pharmacist.