In stock

  • Manufacturer : Centurion Laboratories Pvt Ltd
  • Equivalent Brands : Valtrex
  • Generic Brands : Valacyclovir

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On Orders Over $199

Pack Size Price Qty Price Per Unit Addtocart
30 Tablet/s $23.00 $0.77
60 Tablet/s $44.00 $0.73
90 Tablet/s $65.00 $0.72
Centrex 500 Mg is available to buy in increments of 1

1. Buy Centrex 500mg Online

Centrex 500 contains 500mg of the antiviral drug Valacyclovir as its active ingredient. Valacyclovir is actually a pro-drug which means it is a medication or compound that is metabolized in the body to become an active pharmaceutical drug. Upon intake of Valacyclovir, it is quickly converted into Acyclovir, a drug that has demonstrated antiviral activitiy against herpes viruses and varicella zoster virus. The drug actually stops or slows the growth of these viruses inside the body, thus helping the body fight off the viral infection.

Centrex 500 is prescribed for the treatment of the viral infections such as cold sores which is caused by herpes labialis virus, genital herpes caused by herpes simplex virus, and herpes zoster or known as shingles. It is also used to treat cold sores in children at least 12 years old, and chicken pox caused by varicella zoster virus, in children aged 2 to 18 years.

This medication, however, does not cure and prevent the spread of these viral infections, but it helps reduce symptoms, reduce the severity and length of the outbreak. It helps hasten the healing of sores, reduces pain and itching, and prevents new sores from forming.

2. What is Centrex 500mg Tablet?

Centrex plays the role of an anti-viral drug  which is known to slow the growth of herpes as it spreads and help improve your body’s fight against the infection. Some of the medical conditions caused by herpes virus include cold sores, genital herpes, chickenpox and shingles. Centrex  is a medication that can be used to treat herpes for both adults and children. For children, Centrex can be used to treat cold sores  only if they are above the age of twelve. Meanwhile, for children with chickenpox  Centrex is recommended for those over the age of two years.

3. Drug interaction of Centrex 500mg

  • acyclovir
  • amoxicillin
  • cephalexin
  • ciprofloxacin
  • ubiquinone
  • duloxetine
  • doxycycline
  • ibuprofen
  • lysine
  • meloxicam
  • metoprolol
  • Vitamin B12 (cyanocobalamin)
  • Vitamin C (ascorbic acid)
  • Vitamin D3 (cholecalciferol)
  • wine

4. Side Effects of Centrex 500mg

  • nausea
  • stomach pain
  • vomiting
  • dizziness
  • headache
  • feeling of tiredness
  • fever
  • pale skin
  • easy bruising or unusual bleeding
  • red or pink urine
  • feeling week or tired
  • bloody diarrhea
  • red spots on the skin not related to the viral infection
  • irregular heartbeat
  • sudden vision changes
  • loss of consciousness

5. Warning And Precaution of Centrex 500mg tablet

Valacyclovir can harm kidneys and red blood cells. Before taking Centrex, a physician must be informed of any of the following medical conditions:

  • kidney disease
  • HIV or other conditions that weaken the immune system
  • History of kidney or bone marrow transplant

Harmful effects to the kidneys may be increased if this medication is used with other medicines that harm the kidneys. Centrex can interact with the following medications:

  • Other antivirals
  • Chemotherapy
  • Antibiotics
  • Medications for bowel disorders
  • Medications preventing organ transplant rejection
  • Some pain and arthritis medications
  • Injectable osteoporosis medications

The above list is not complete, inform a physician of all medications being taken to prevent any drug interaction and adverse effects.

Caution is advised when driving, using of machineries and performing activities that require alertness for Centrex can cause dizziness.

Only with the consent of a physician should vaccinations be done while taking this medication. This medication may interact with vaccinations such as varicella virus vaccine and zoster vaccine.

This medication does not prevent the spread of herpes. Avoid physical contact or sexual intercourse or use latex condom to prevent the spread of the virus to other people.

Centrex should only be used by pregnant and breastfeeding women, if a physician determines that the benefits of the drug outweighs the risks.

6. Centrex 500mg Dosage

A physician will determine the dosage of Centrex per patient as it will depend on the patient’s type of infection, other health conditions, age, weight and the response to the treatment. A patient must consult a physician to get the precise dosage for him/her.

This medication is most effective if taken as soon as the first symptom of the viral infection appears. Use of this drug must be within 48 hours after the first symptom appears. For recurrent viral infections such in the case of genital herpes, this drug works best if taken within 24 hours after symptoms appear. Centrex tablets may be taken with or without food, swallowed whole with plenty of water. Drinking extra fluids is recommended to help prevent kidney problems.

7. Uses of Centrex 500mg

Centrex (Valacyclovir) is used for l treatment of viral infections of skin, mucus membrane, genitals and eyes caused by herpes virus including cold sores (blisters on and around your lips) and shingels (painful rashes usually in the form of a strip of blisters). It is also used for treatment of recurrent genital herpes infections, to treat chickenpox in children.

8. Storage of Centrex 500mg

This will also improve your condition faster and more effectively. It is very important for you to know that overdose of this medication can cost you very hard. It can also take a toll on your health. Therefore limited usage of this medication is recommended. When it comes to the storage, ensure that you do not store the medication in freezer. Store it at room temperature away from light, heat, water, moisture, pets, and children.

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