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Terconazole Vaginal Cream 0.4% is a white to off-white, water washable cream for intravaginal administration containing 0.4% of the antifungal agent terconazole, cis-1-[p-[[2-(2,4-Dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-4-isopropylpiperazine, compounded in a cream base consisting of butylated hydroxyanisole, cetyl alcohol, isopropyl myristate, polysorbate 60, polysorbate 80, propylene glycol, stearyl alcohol, and purified water.
The structural formula of terconazole is as follows:
Terconazole, a triazole derivative, is a white to almost white powder with a molecular weight of 532.47. It is insoluble in water; sparingly soluble in ethanol; and soluble in butanol.
Following intravaginal administration of terconazole in humans, absorption ranged from 5-8% in three hysterectomized subjects and 12-16% in two nonhysterectomized subjects with tubal ligations.
Following oral (30 mg) administration of C-labelled terconazole, the harmonic half-life of elimination from the blood for the parent terconazole was 6.9 hours (range 4.0-11.3). Terconazole is extensively metabolized; the plasma AUC for terconazole compared to the AUC for total radioactivity was 0.6%. Total radioactivity was eliminated from the blood with a harmonic half-life of 52.2 hours (range 44-60). Excretion of radioactivity was both by renal (32-56%) and fecal (47-52%) routes.
In vitro, terconazole is highly protein bound (94.9%) and the degree of binding is independent of drug concentration.
Photosensitivity reactions were observed in some normal volunteers following repeated dermal application of terconazole 2.0% and 0.8% creams under conditions of filtered artificial ultraviolet light.
Photosensitivity reactions have not been observed in U.S. and foreign clinical trials in patients who were treated with terconazole vaginal cream 0.4%.
Terconazole exhibits fungicidal activity in vitro against Candida albicans. Antifungal activity has also been demonstrated against other fungi. The MIC values of terconazole against most Lactobacillus spp. typically found in the human vagina were ≥128 mcg/mL, therefore these beneficial bacteria were not affected by drug treatment.
The exact pharmacologic mode of action of terconazole is uncertain; however, it may exert its antifungal activity by the disruption of normal fungal cell membrane permeability. No resistance to terconazole has developed during successive passages of C. albicans.
Terconazole Vaginal Cream 0.4% is indicated for the local treatment of vulvovaginal candidiasis (moniliasis). As Terconazole Vaginal Cream 0.4% is effective only for vulvovaginitis caused by the genus Candida, the diagnosis should be confirmed by KOH smears and/or cultures.
Patients known to be hypersensitive to terconazole or to any of the components of the cream.
Discontinue use and do not retreat with terconazole if sensitization, irritation, fever, chills or flu-like symptoms are reported during use.
If there is lack of response to terconazole, appropriate microbiologic studies (standard KOH smear and/or cultures) should be repeated to confirm the diagnosis and rule out other pathogens.
The therapeutic effect of Terconazole Vaginal Cream 0.4% is not affected by oral contraceptive usage.
Studies to determine the carcinogenic potential of terconazole have not been performed.
Terconazole was not mutagenic when tested in vitro for induction of microbial point mutations (Ames test) or for inducing cellular transformation, or in vivo for chromosome breaks (micronucleus test) or dominant lethal mutations in mouse germ cells.
No impairment of fertility occurred when female rats were administered terconazole orally up to 40 mg/kg/day for a three month period.
There was no evidence of teratogenicity when terconazole was administered orally up to 40 mg/kg/day (100 × the recommended intravaginal human dose) in rats, or 20 mg/kg/day in rabbits, or subcutaneously up to 20 mg/kg/day in rats.
Dosages at or below 10 mg/kg/day produced no embryotoxicity; however, there was a delay in fetal ossification at 10 mg/kg/day in rats. There was some evidence of embryotoxicity in rabbits and rats at 20-40 mg/kg. In rats this was reflected as a decrease in litter size and number of viable young and reduced fetal weight. There was also delay in ossification and an increased incidence of skeletal variants.
The no-effect oral dose of 10 mg/kg/day resulted in a mean peak plasma level of terconazole in pregnant rats of 0.176 mcg/mL which exceeds by 44 times the mean peak plasma levels (0.004 mcg/mL) seen in normal subjects after intravaginal administration of terconazole 0.4% vaginal cream. This safety assessment does not account for possible exposure of the fetus through direct transfer of terconazole from the irritated vagina to the fetus by diffusion across amniotic membranes.
Since terconazole is absorbed from the human vagina, it should not be used in the first trimester of pregnancy unless the physician considers it essential to the welfare of the patient.
It is not known whether this drug is excreted in human milk. Animal studies have shown that rat offspring exposed via the milk of treated (40 mg/kg/orally) dams showed decreased survival during the first few post-partum days, but overall pup weight and weight gain were comparable to or greater than controls throughout lactation. Because many drugs are excreted in human milk, and because of the potential for adverse reaction in nursing infants from terconazole, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
Safety and efficacy in children have not been established.
Clinical studies of Terconazole Vaginal Cream 0.4% did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients.
During controlled clinical studies conducted in the United States, 521 patients with vulvovaginal candidiasis were treated with terconazole 0.4% vaginal cream. Based on comparative analyses with placebo, the adverse experiences considered most likely related to terconazole 0.4% vaginal cream were headaches (26% vs. 17% with placebo) and body pain (2.1% vs. 0% with placebo). Vulvovaginal burning (5.2%), itching (2.3%) or irritation (3.1%) occurred less frequently with terconazole 0.4% vaginal cream than with the vehicle placebo. Fever (1.7% vs. 0.5% with placebo) and chills (0.4% vs. 0.0% with placebo) have also been reported. The therapy-related dropout rate was 1.9%. The adverse drug experience on terconazole most frequently causing discontinuation was vulvovaginal itching (0.6%), which was lower than the incidence for placebo (0.9%).
Overdose of terconazole in humans has not been reported to date. In the rat, the oral LD 50 values were found to be 1741 and 849 mg/kg for the male and female, respectively. The oral LD 50 values for the male and female dog were 1280 and ≥ 640 mg/kg, respectively.
One full applicator (5 g) of Terconazole Vaginal Cream 0.4% (20 mg terconazole) should be administered intravaginally once at bedtime for seven consecutive days.
Before prescribing another course of therapy, the diagnosis should be reconfirmed by smears and/or cultures and other pathogens commonly associated with vulvovaginitis ruled out. The therapeutic effect of Terconazole Vaginal Cream 0.4% is not affected by menstruation.
Terconazole Vaginal Cream 0.4% is available in 45 g tubes with a measured-dose applicator. Store at 20°-25°C (68°-77°F) [see USP Controlled Room Temperature].
Mfd. by: Taro Pharmaceuticals Inc., Brampton, Ontario, Canada L6T 1C1Dist. by: Taro Pharmaceuticals U.S.A., Inc., Hawthorne, NY 10532
Repackaged by: Rebel Distributors Corp, Thousand Oaks, CA 91320
TERCONAZOLE VAGINAL CREAM O.4%
Filling the applicator:
Using the applicator:
Cleaning the applicator:
After each use, you should thoroughly clean the applicator by following the procedure below:
NOTE: Store at 20°-25°C (68°-77°F) [see USP Controlled Room Temperature]. See end flap of carton or crimp of tube for lot number and expiration date.
A WORD ABOUT YEAST INFECTIONS
Why do yeast infections occur?
Yeast infections are caused by an organism called Candida (KAN di duh). It may be present in small and harmless amounts in the mouth, digestive tract, and vagina. Sometimes the natural balance of the vagina becomes upset. This may lead to rapid growth of Candida, which results in a yeast infection. Symptoms of a yeast infection include itching, burning, redness, and an abnormal discharge.
Your doctor can make the diagnosis of a yeast infection by evaluating your symptoms and looking at a sample of the discharge under the microscope.
How can I prevent yeast infections?
Certain factors may increase your chance of developing a yeast infection. These factors don't actually cause the problem, but they may create a situation that allows the yeast to grow rapidly.
Controlling these factors can help eliminate yeast infections and may prevent them from coming back.
Some other helpful tips:
Mfd. by:Taro Pharmaceuticals Inc.Brampton, Ontario, Canada L6T 1C1
Dist. by: Taro Pharmaceuticals U.S.A., Inc. Hawthorne, NY 10532
Rebel Distributors Corp
Thousand Oaks, CA 91320
|1. Remove the cap from the tube.|
|2. Use the pointed tip on the top of the cap to puncture the seal on the tube.|
|3. Screw the applicator onto the tube.||
|4. Squeeze the tube from the bottom and fill the applicator until the plunger stops.|
|5. Unscrew the applicator from the tube.|
|1. Pull the plunger out of the barrel.||
|2. Wash both pieces with lukewarm, soapy water, and dry them thoroughly.|
|3. Put the applicator back together by gently pushing the plunger into the barrel as far as it will go.|
Rebel Distributors Corp
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