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Zovirax

The prices in Internet drugstores:

from 195 rub.

Крем ЗовираксZovirax – antiviral drug.

Form of release and structure

Zovirax is produced in the following dosage forms:

  • Cream for external use of 5%: homogeneous, almost white or white color (on 2 g in plastic bottles with the portioning device, on 2, 5 or 10 g in aluminum tubas, on 1 bottle or a tuba in a cardboard pack);
  • Oculentum of 3%: translucent, almost white or white, oily, soft, homogeneous without the maintenance of lumps, grains and foreign particles, with a characteristic slight smell (on 4,5 g in tubas with a polyethylene nozzle, on 1 tuba in a cardboard pack);
  • Lyophilisate for preparation of solution for infusions: the caked weight (porous flat cake) or hydroscopic powder of almost white or white color (on 250 mg in glass bottles, on 5 bottles in plastic trays, on 1 tray in a cardboard pack);
  • Tablets: biconvex, round, white, with a text of "GXCL3" on one of the parties (on 5 pieces in blister strip packagings, on 5 packagings in a cardboard pack).

Is a part of 1000 mg of cream for external use:

  • Active agent: an acyclovir – 50 mg;
  • Auxiliary components: liquid paraffin, propylene glycol, soft white paraffin, cetostearyl alcohol, sodium lauryl sulfate, half-oxameasures 407, диметикон, monostearate of a glitserol, macrogoal stearate, the purified water.

Is a part of 1000 mg of an oculentum:

  • Active agent: an acyclovir – 30 mg;
  • Auxiliary component: white vaseline.

With lyophilisate for preparation of solution for infusions is a part of 1 bottle:

  • Active agent: an acyclovir – 250 mg;
  • Auxiliary component: sodium hydroxide.

Is a part of 1 tablet:

  • Active agent: an acyclovir – 200 mg;
  • Auxiliary components: monohydrate of lactose, sodium starch glycollate, K30 povidone, magnesium stearate, microcrystallic cellulose.

Indications to use

Zovirax in the form of external use cream is appointed for the treatment of infections of skin and mucous membranes caused by a virus of a herpes simplex (Herpes simplex) of type 1 and 2 including herpes of lips.

The oculentum is applied at the keratitis caused by a virus of a herpes simplex of type 1 and 2.

Zovirax in and in the form of solution to infusions is applied in the presence of the following indications:

  • Treatment of the infections caused by the Varicella zoster virus (the surrounding herpes and chicken pox);
  • Prevention of the infections caused by a virus of a herpes simplex of type 1 and 2 at patients with an immunodeficiency.

Solution to infusions is also applied at treatment of the infections caused by a virus of a herpes simplex of type 1 and 2 (including newborns), and to prevention of a Cytomegaloviral infection at recipients of transplants of marrow.

Additional indications to reception of Zovirax in the form of tablets are:

  • Treatment of infections of the mucous membranes and skin caused by a virus of a herpes simplex of type 1 and 2 including genital herpes (primary and recurrent);
  • Treatment of patients with a heavy immunodeficiency (mainly, with the developed clinical picture AIDS, with HIV infection (at number of cells of CD4+<200/мкл), с ранними клиническими проявлениями ВИЧ-инфекции), перенесших трансплантацию костного мозга;
  • Prevention of a recurrence of the infections caused by a virus of a herpes simplex of type 1 and 2 at patients with the normal immune status.

Contraindications

Use of Zovirax in all dosage forms contraindicated with hypersensitivity to drug components, and also to a valatsiklovir.

The feeding and pregnant women can use drug only in cases when the advantage for health of mother is higher than possible risk for the child or a fruit.

At intravenous administration and reception of Zovirax inside patients need to be careful with a renal failure, to patients with symptoms of dehydration. In addition solution for infusions should be entered with care during development of reactions to cytotoxic medicines at their intravenous administration (and at instructions on such reactions in the anamnesis), and also in the presence of neurologic disturbances.

Route of administration and dosage

External use cream is recommended to be applied with a thin layer on the sites of mucous membranes and skin of 5 times struck and surrounding them in day (with breaks 4 hours). To avoid additional infection of the struck areas, Zovirax needs to be applied with clean hands or a cotton plug.

Therapy duration – is not less than 4 days. In the absence of effect duration of a course can be increased up to 10 days. At preservation of symptoms of a disease longer than 10 days it is necessary to consult with the doctor.

The oculentum a strip 1 cm long is placed in the lower conjunctival sac. Drug is used by 5 times a day (with breaks 4 hours between drawings). After healing treatment needs to be continued on an extent of 3 days.

Solution of Zovirax is intended for intravenous infusional administration.

The adult at treatment of the infections caused by the Varicella zoster and Herpes simplex viruses (except herpetic encephalitis), Zovirax is appointed by each 8 hours on 5 mg/kg of body weight.

At the infections caused by the Varicella zoster virus and herpetic encephalitis at patients with an immunodeficiency at normal function of kidneys each 8 hours carry out intravenous infusions in a dose of 10 mg/kg of body weight.

At transplantation of marrow 3 times a day (with observance of breaks at 8 o'clock) in a dose of 500 mg/m ² apply body surfaces to prevention of a Cytomegaloviral infection Zovirax. Therapy duration – of 5 days before performing transplantation and up to 30 days after it.

Patients with obesity are recommended to apply the same doses, as to patients with normal body weight.

Patients with a renal failure need to correct the mode of dosing according to indicators of clearance of creatinine:

  • 25-50 ml a minute: each 12 hours on 5-10 mg/kg or 500 mg/m ²;
  • 10-25 ml a minute: each 24 hours on 5-10 mg/kg or 500 mg/m ²;
  • Less than 10 ml a minute (including an anury): each 24 hours on 2,5-5 mg/kg or 250 mg/m ² (when carrying out continuous out-patient peritoneal dialysis).

At a hemodialysis the drug is administered by each 24 hours and after dialysis on 2,5-5 mg/kg or 250 mg/m ².

Zovirax doses for intravenous infusion establish to children from 3 months to 12 years individually depending on body surface area.

The dosing mode at newborns is set depending on body weight. The recommended dose at treatment of the infections caused by the Herpes simplex virus of type 1 and 2 makes 10 mg/kg each 8 hours. Duration of therapy of herpetic encephalitis and the infections caused by the Herpes simplex virus usually makes 10 days. At the infections caused by the Varicella zoster and Herpes simplex viruses (except herpetic encephalitis), Zovirax is entered by each 8 hours on 250 mg/m ².

At children with an immunodeficiency (at normal function of kidneys) at treatment of herpetic encephalitis and the infections caused by the Varicella zoster virus the drug is administered by each 8 hours on 500 mg/m ².

Children of 2 years which underwent transplantation of marrow for prevention of a Cytomegaloviral infection can enter Zovirax in adult doses.

Children with reduced function of kidneys of a dose need to adjust according to degree of a renal failure.

The dose decline can be required by elderly patients with reduced clearance of creatinine.

As a rule, the course of treatment Zovirax in the form of intravenous infusions makes 5 days, however depending on a condition of the patient and the response to the carried-out therapy it can change. Duration of preventive use of Zovirax is defined by duration of the period of existence of risk of infection.

The recommended dose of Zovirax needs to be entered within 1 hour in the form of slow intravenous infusion.

For preparation of solution use water for injections or 0,9% chloride sodium solution for injections at the rate of each 25 mg of drug on 1 ml of solution for cultivation (add to an ampoule with powder and carefully shake up until the powder which is contained in an ampoule completely is not dissolved).

The received solution of Zovirax is entered, using the special infusional pump regulating the speed of its introduction. Other way of introduction at which the prepared solution is diluted before obtaining concentration of an acyclovir is possible, it is not higher than 5 mg/ml (0,5%).

Zovirax in the form of tablets is accepted inside, washing down with water (200-250 ml). Drug can be accepted during food (meal substantially does not break its absorption).

The recommended adult single dose of Zovirax in the form of tablets at treatment of the infections caused by the Herpes simplex virus of type 1 and 2 makes 200 mg. Drug is accepted by 5 times a day, observing breaks at 4 o'clock (except the period of a night dream). As a rule, duration of a therapeutic course makes 5 days, at heavy primary infections it can be prolonged.

At disturbance of absorption from intestines or in the presence of the expressed immunodeficiency (for example, after transplantation of marrow) it is possible to increase a single dose of Zovirax to 2 tablets (400 mg). After developing of an infection therapy needs to be begun as soon as possible. At development of a recurrence drug is recommended to begin to be accepted at emergence of the first elements of rash or in a prodromal stage.

At patients with the normal immune status for prevention of a recurrence of the infections caused by the Herpes simplex virus of type 1 and 2, Zovirax is accepted by each 6 hours (4 times a day) on 1 tablet. Drug use 2 times a day (in 12 hours) on 2 tablets (400 mg) is also possible. Sometimes effective are lower doses of Zovirax: 3 times a day (with a break of 8 hours) on 1 tablet or 2 times a day (with a break of 12 hours). Periodically therapy needs to be interrupted for 6-12 months to reveal possible changes during a disease.

To patients with an immunodeficiency for prevention of developing of the infections caused by the Herpes simplex virus of type 1 and 2, Zovirax is recommended to accept 4 times a day (each 6 hours) on 1 tablet. At disturbance of absorption from intestines or the patient with the expressed immunodeficiency (for example, after transplantation of marrow) increase in a single dose twice (400 mg) and frequency rates of administration of drug to 5 times a day is possible. Duration of a preventive course of treatment is defined by duration of the period of existence of risk of infection.

At treatment of the surrounding herpes and chicken pox Zovirax is appointed by 5 times a day (each 4 hours, except the period of a night dream) on 4 tablets. Duration of a therapeutic course – 7 days.

After the beginning of an infection it is necessary to appoint Zovirax as soon as possible as in this case therapy is more effective.

The recommended single dose at the expressed immunodeficiency makes 4 tablets, frequency rate of reception – 4 times a day (each 6 hours).

After transplantation of marrow before Zovirax use inside usually within 1 month it is recommended to conduct a course of intravenous therapy by an acyclovir. By clinical trials it was established that the maximum duration of a course of therapy of recipients of a transplant of marrow made 6 months. At patients with the developed clinical picture of HIV infection duration of a course of treatment made 12 months, however longer courses of therapy can appear perhaps effective.

To children with an immunodeficiency aged from 2 years is also more senior for treatment and prevention of the infections caused by the Herpes simplex viruses, Zovirax is appointed in adult doses, children of younger age should lower a dose twice.

The single dose for children of 6 years at treatment of chicken pox makes 4 tablets; from 2 to 6 years – 2 tablets; 2 years – 1 tablet are younger. Frequency rate of administration of drug – 4 times a day. More precisely the single dose is defined at the rate of 20 mg/kg of body weight (but no more than 4 tablets). The course of therapy makes 5 days.

At treatment of the surrounding herpes and for prevention of a recurrence of the infections caused by the Herpes simplex viruses children with normal indicators have immunity of no data on efficiency of use of Zovirax.

According to the available very limited information, at treatment of children for 2 years with the expressed immunodeficiency it is possible to appoint the same doses of Zovirax, as for adults.

At purpose of drug elderly patients need to consider a possibility of decrease in clearance of an acyclovir at the same time with decrease in clearance of creatinine. At symptoms of a renal failure it is necessary to consider a question of decrease in a dose of Zovirax. At reception of high doses of drug inside patients of advanced age need to drink enough liquid.

Patients with a renal failure have an administration of drug inside in the recommended doses at the infections caused by the Herpes simplex viruses (for treatment and prevention), to cumulation of active agent to the concentration exceeding the established safe levels does not lead. However at clearance of creatinine a dose of Zovirax it is necessary to lower less than 10 ml a minute to 1 tablet 2 times a day (with breaks of 12 hours). At treatment of the surrounding herpes, chicken pox, and also for therapy of patients with the expressed immunodeficiency at clearance of creatinine less than 10 ml a minute the recommended doses of Zovirax make 4 tablets 2 times a day (with breaks of 12 hours); at clearance of creatinine of 10-25 ml a minute – 4 tablets 3 times a day (with breaks of 8 hours).

Side effects

At use of Zovirax in the form of outside cream development of the following side effects is possible:

  • Allergic reactions: seldom – allergic dermatitis (in most cases similar disturbances are connected with reaction to excipients); in some cases – a Quincke's edema;
  • Local reactions: sometimes – a short itch, reddening, a peeling, a pricking or burning on sites of putting cream.

At use of an oculentum there can be such disturbances as:

  • Organ of sight: often – easy burning passing over time; sometimes – conjunctivitis, a dot superficial keratopathy (disappears without effects, the termination of treatment is not required); seldom – a blepharitis;
  • Allergic reactions: very seldom – reactions of immediate hypersensitivity (including a Quincke's disease).

At intravenous administration and reception of Zovirax development of side effects from some systems of an organism is inside possible:

  • Central nervous system: reversible neurologic disturbances, including hallucinations, confusion of consciousness, a tremor, excitement, psychosis, drowsiness, a coma and spasms (as a rule, these disturbances arise at the patients with a renal failure accepting drug in exceeding recommended doses);
  • Alimentary system: vomiting, nausea, reversible increase in activity of liver enzymes and level of bilirubin; very seldom – jaundice, hepatitis;
  • Urinary system: seldom – increase in level of creatinine and urea in blood (that to avoid it, solution it is necessary to enter in the form of slow infusion within 1 hour and to support a water balance of patients); very seldom – an acute renal failure;
  • System of a hemopoiesis: anemia, thrombocytopenia and leukopenia;
  • Allergic reactions: photosensitization, rash, urticaria, fever, itch; seldom – a Quincke's disease, an asthma, an anaphylaxis.

At Zovirax solution hit under skin the heavy inflammatory reactions causing a necrosis can be observed.

At administration of drug in the form of tablets development of bystry fatigue is also possible, in rare instances there can be a bystry diffusion hair loss (connection with reception of Zovirax is not established).

Does not cause in the patients receiving anti-retrovirus drugs, additional reception of Zovirax significant strengthening of toxic effects.

Special instructions

At the expressed displays of herpes of lips it is recommended to consult with the doctor.

Outwardly Zovirax needs to be applied to achievement of the maximum effect at emergence the first symptoms of a disease (an itch, a pricking, burning, reddening and feeling of tension). It is not necessary to apply drug on mucous membranes of a cavity of eyes and a mouth as it can lead to development of a local inflammation.

At genital herpes it is necessary to avoid sexual contacts or to use condoms as drug use sexually does not prevent transfer of a virus.

Patients with an immunodeficiency at treatment of any infectious diseases have to adhere to recommendations of the doctor.

After use of Zovirax in the form of an oculentum emergence of easy burning which takes place independently is possible. During therapy it is not necessary to carry contact lenses.

Patients with the herpetic encephalitis receiving high doses of Zovirax in the form of infusions should control function of kidneys (especially at initial disturbance of a functional condition of kidneys or at dehydration).

Zovirax should be applied with care, controlling a functional condition of kidneys, along with the medicines breaking function of kidneys (for example, with takrolimusy, cyclosporine).

At the prepared Zovirax solution рН =11 therefore it is impossible to accept in it.

Patients at use of high doses of drug in the form of tablets have to drink enough liquid.

Medicinal interaction

At use of Zovirax in all dosage forms with other drugs of clinically significant interactions it was not noted.

Increase in concentration of active agents or their metabolites in plasma is possible at co-administration of Zovirax with the medicines which are removed by active canalicular secretion (at use of such combinations it is necessary to be careful).

Terms and storage conditions

To store in the place, dry, unavailable to children.

Period of validity:

    External
  • use cream – 3 years at a temperature up to 25 °C (not to freeze);
  • Oculentum and tablets – 5 years at a temperature up to 25 °C;
  • Lyophilisate for preparation of solution for infusions – 5 years at a temperature up to 30 °C.

The oculentum after opening of packaging needs to be used within 1 month.

The prices in Internet drugstores:

Name of drug

Price

Drugstore

Zovirax cream for external use of 5% 5 g

195 rub.

Аптека вер.ру, ОООApteka вер.ру, LLC

Zovirax cream of 5% of a tube of 5 g, Glaxo Wellcome

196 rub.

Сеть московских аптек ИФКNetwork of the Moscow drugstores of IFC

Zovirax oculentum of 3% 4,5g

250 rub.

Аптека вер.ру, ОООApteka вер.ру, LLC

Duo-Aktiv zovirax cream for external use of 5% 2 g

301 rub.

Аптека вер.ру, ОООApteka вер.ру, LLC

Zovirax of a tablet 200 of mg of 25 pieces

499 rub.

Аптека вер.ру, ОООApteka вер.ру, LLC

Zovirax тбл 200 mg No. 25, GlaxoSmithKline Pharmaceuticals S.A

827 rub.

Сеть московских аптек ИФКNetwork of the Moscow drugstores of IFC
 
 
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