For Consumers What are the possible side effects of acyclovir topical Zovirax Topical? Get emergency medical help if you have any of these signs of an allergic reaction: Less serious side effects may include: This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at The dose size per application will vary depending upon the zovirax lesion area but should approximate a one-half coupon ribbon of ointment per 4 square inches of surface area.
A finger cot or rubber glove should be fosamax price check when applying ZOVIRAX to prevent autoinoculation of other body sites and transmission of infection to other persons.
Therapy should be initiated as early as possible following onset of signs and symptoms. It is supplied as follows: In all studies, there was no significant difference between the drug and placebo group in the rate or type of reported adverse reactions nor were there any differences in abnormal clinical laboratory findings. Data are insufficient to support an estimate of their incidence or to establish causation. These events may also occur as part of the underlying disease process.
Voluntary reports of adverse events that have been received since market introduction include: Carcinogenesis, Mutagenesis, zovirax com coupon, Impairment Of Fertility Systemic exposure following topical administration of acyclovir is minimal, zovirax com coupon. Dermal carcinogenicity studies were not conducted. Teratogenic Effects Pregnancy Category B.
Acyclovir was not teratogenic in the mouse, rabbit, or rat at exposures greatly in excess of human exposure. There are no adequate and wellcontrolled studies of systemic acyclovir in pregnant women.
A prospective epidemiologic registry of acyclovir use during pregnancy was established in and completed in April There were pregnancies followed in women exposed to systemic acyclovir during the first trimester of pregnancy resulting in outcomes.
The occurrence rate of birth defects approximates that found in the general population. However, the small size of the registry is insufficient to evaluate the risk zovirax less common defects or to permit reliable or definitive conclusions regarding the safety of acyclovir in pregnant women and their developing fetuses.
Systemic acyclovir should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Nursing Mothers It is not known whether topically applied acyclovir is excreted in breast milk. Systemic exposure following topical administration is minimal.
Rats in the low-dose group gained as much body weight as the respective control rats. Rats in the high-dose group partially compensated by gaining significantly more body weight than the controls during the postdose recovery period. This finding may be of biological importance because there were minimal accumulations of nuclear debris in renal com ducts and loops of Henle in kidney sections taken from high-dose neonates after 19 days of treatment com examined by light microscopy.
This was the only time period and the kidney was the only organ in which minimal effects on developing organ systems were detected. Eye examinations and light microscopy did not reveal adverse coupons on ocular development.
It should be emphasized that there was no morphologic zovirax functional zovirax of adverse effects on developing brain or other portions of the central nervous system. Thus, acyclovir is distinctly different than cytosine arabinoside which was reported to produce prominent cerebellar and retinal dysplasia in neonatal rats. Mutagenicity And Other Short-Term Studies Acyclovir has been tested for mutagenic potential in a number of in vitro and in vivo systems: November 10, Page 27 of 38 Microbial Acyclovir was tested for mutagenic coupon in the Farmaci equivalenti cialis Salmonella coupon assay; in a preincubation modification of the Ames assay; in the Rosenkrantz E, zovirax com coupon.
All studies were performed both in the presence and absence of exogenous mammalian metabolic activation. Acyclovir gave no positive responses in any of these systems. The previous Salmonella studies were extended to extremely high concentrations in order to achieve toxicity. All studies were performed in the presence and in the absence of exogenous mammalian metabolic activation. By comparison, the upper limit of acyclovir peak plasma levels following oral dosing of mg q4h is zovirax. Identical results were obtained coupon and without metabolic activation.
Inconclusive results with no apparent com response were obtained when acyclovir mutagenicity was studied at each of 3 loci APRT, zovirax com coupon, HGPRT and Ouabain-resistance in Chinese hamster ovary CHO cells, zovirax com coupon, both in the presence and absence of exogenous metabolic activation.
The morphologically zovirax foci have been shown to grow as tumours following transplantation into immunosuppressed, syngeneic, weanling mice. Tumour tissues were diagnosed as being either undifferentiated sarcomas or lymphosarcomas. Acyclovir, at coupons com There was also a significant com decrease in mitotic index with exposure to acyclovir.
Thus, all these studies showed that acyclovir does not cause single-gene mutations but is capable of breaking chromosomes. Immunotoxicology Studies Acyclovir was com to a zovirax of in vitro and in vivo immunological tests. In four in vivo tests in mice which measured cell-mediated immunity complement-dependent cellular cytotoxicity, zovirax com coupon, complement-independent cellular cytotoxicity, delayed hypersensitivity and graft vs.
However, zovirax com coupon, there was only a small reduction in the circulating hemagglutinin titer from 8. In experiments in mice designed to test whether acyclovir would potentiate the immunosuppressive effect of azathioprine on com formation, it was found that the effects of the two drugs were no more than additive, zovirax com coupon.
Studies were carried out to evaluate the influence of acyclovir in vitro on human lymphocyte function. These inhibitory concentrations are far in excess of anticipated levels from doses selected for clinical application and over zovirax higher than the com required to inhibit herpesvirus multiplication in vitro.
The effect of acyclovir on human cells was measured. A concentration of The magnitude of this effect was less than that caused by coupon arabinoside or human leukocyte interferon when these three antiviral agents were compared at clinically relevant concentrations.
Acyclovir also inhibited thymidine com by peripheral blood mononuclear cells stimulated zovirax PHA or three different herpesvirus coupons. Inhibition was exerted on T-cell proliferation without apparent effect on the release of lymphokines zovirax on monocyte function.
Acyclovir treatment of varicella in otherwise healthy children, zovirax com coupon. J Pediatr ; 4: Acyclovir coupon com varicella in otherwise healthy adolescents. J Pediatr ; 4 Pt 1: Viral resistance in clinical practice: Viral resistance, clinical experience. Scand J Infect Dis Suppl ; Effect of acyclovir combined with other antiherpetic agents on varicella zoster virus in vitro, zovirax com coupon. Am J Med ; 73 1A: Multiple coupon pharmacokinetics of intravenous com in patients on continuous ambulatory peritoneal dialysis.
J Antimicrob Chemother ; zovirax 1: Treatment of first episodes of genital herpes simplex virus infection with oral acyclovir. A randomized double-blind controlled trial in normal subjects.
N Engl J Med ; Isolation and characterisation of resistant Herpes simplex virus after acyclovir therapy.
Lancet ; 1 Christophers J, Sutton RN. Characterisation of acyclovir-resistant and -sensitive clinical coupon simplex virus isolates from an immunocompromised patient. J Antimicrob Chemother ; 20 3: Varicella-Zoster virus does not become more resistant to zovirax during therapy, zovirax com coupon. J Infect Dis ; 3: Collins P, Bauer DJ, zovirax com coupon. The activity in vitro against herpes virus of 9- 2-hydroxyethoxymethyl guanine acycloguanosinea new antiviral agent.
J Antimicrob Chemother ; 5 4: Collins P, Oliver NM. Sensitivity monitoring of herpes simplex virus isolates from patients receiving acyclovir. J Antimicrob Chemother ; 18 Suppl B: Viral sensitivity following the introduction of acyclovir. Am J Med ; 85 2A: Characterization of a DNA polymerase mutant of herpes simplex virus from a severely immunocompromised patient receiving acyclovir.
J Gen Virol ; 70 Pt 2: Growth inhibition by acycloguanosine of herpesviruses isolated from human infections. Antimicrob Agents Chemother ; 15 5: Resistance to antiviral drugs of herpes simplex virus isolated from a patient com with acyclovir.
N Engl J Med ; 6: Mechanisms of resistance to nucleoside analogue inhibitors of herpes simplex virus. Comparative efficacy zovirax antiherpes drugs against different strains of herpes simplex virus, zovirax com coupon. J Infect Dis ; 5: Comparative efficacy of antiherpes drugs in different cell lines. Antimicrob Agents Chemother ; 21 4: Virus resistance in clinical practice. J Ibuprofen compared to paracetamol Chemother ; 12 Suppl B: A double-blind, placebo-controlled trial to the effect of chronically administered oral acyclovir on sperm production in men with frequently recurrent genital herpes.
J Infect Dis Mar; A double-blind study of oral acyclovir for suppression of recurrences of genital herpes simplex virus infection. A controlled trial of acyclovir com coupon in normal children.
Characterization of an HSV-2 clinical isolate containing an ACV-resistant mutant which produces a thymidine kinase with altered substrate specificity. Clinical isolate of herpes simplex virus type 2 that induces a thymidine kinase with altered substrate specificity.
Antimicrob Agents Chemother ; 31 7: Herpes simplex virus resistant to acyclovir. A study in a tertiary care center. Ann Intern Med ; 6: Foscarnet therapy for severe acyclovir-resistant herpes simplex virus type-2 infections in patients with the acquired immunodeficiency syndrome AIDS. Ann Intern Med ; 9:
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