Valtrex is an antiviral drug, produced in the form of biconvex, elongated white tablets coated with a coating. On one side of the blue ink there is an inscription “VALTREX 500”. The active substance is valaciclovir hydrochloride, it contains 556 mg in one tablet. This substance, after entering the human body, under the influence of valaciclovir hydrolase, is converted into acyclovir. That’s what it does to the virus.
After entering the human body, Valtrex is quickly absorbed from the digestive tract and breaks down into acyclovir and valine (an amino acid). The maximum concentration of the treating substance is observed 1-2 hours after oral administration of the tablet. At the same time the process of taking the medicine does not depend on meals.
After 3 hours, patients with normal renal function will begin to decrease the level of acyclovir. Valtrex is excreted through the urine, almost unchanged. If there are any deviations, then this time increases. So in patients with renal insufficiency, the withdrawal time will be about 14 hours.
When is it possible and when is it impossible to accept?
Valtrex is appointed by a doctor. It is usually used to treat various forms of the herpes virus in adults. Namely:
For the treatment of herpes simplex types 1 and 2, which are characterized by manifestations of infection on the skin and mucous membranes of the patient. Moreover, it is used both for primary infection and for relapsing conditions, especially for genital herpes.
For the treatment of the Varicella-Zoster virus, which manifested itself in the form of herpes zoster. It will help to speed up the healing process and reduce pain.
If the first symptoms of a cold on the lips (simple herpes of type 1) appeared, Valtrex, appointed during this period, will not let the infection to develop, and, consequently, help to avoid the appearance of rashes.
For the prevention of frequent manifestations of the virus with herpes of types 1 and 2.
With genital herpes, taking this antiviral drug will help reduce the risk of contracting a healthy partner, but remember that the probability of infection is reduced only if safer sex (condoms) is practiced.
To prevent the appearance of cytomegalovirus infections after internal organ transplant operations, as well as to prevent the development of other viral infections.
As contraindications, the instructions indicate individual intolerance of the drug itself or its components, and also should be cautious patient with clinically expressed forms of HIV.
In addition, there is also a series of warning instructions. Thus, patients who may develop dehydration, especially those with advanced age, should pay special attention to the water balance and drink a sufficient amount of liquid. Patients with kidney failure also need to be neat, as they may develop neurological complications.
Dosage and how to take?
For the treatment of herpes simplex Valtrex is prescribed in a dosage of 500 mg twice a day. If treatment is re-emergence of infection, the tablets are given within 3-5 days. If there are frequent recurrences, take the drug for 5-10 days. What is important, the drug should be given after the appearance of the first symptoms: itching, burning or pain. If there are symptoms of labial herpes (a cold on the lips), then the drug is prescribed in a higher dose, but only one day. Once 2g and second time 2g, after 12 hours.
Like every drug, Valtrex once it is taken in, it can manifest itself as side effects that can bring discomfort. In the course of the studies it was found that in the process of taking this remedy, headaches, less dizziness, decreased mental activity and confusion may occur. There may be nausea, heaviness in the abdomen, vomiting and diarrhea, less often – violations in the hepatic.
On the part of the respiratory system, respiratory distress can be observed, in the circulatory system, a decrease in the number of leukocytes and platelets. Do not exclude the manifestation of allergic reactions: rash, itching, swelling of Quincke. From the side of the urinary system, very infrequent violations of the kidneys are observed.