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GynomykE • 1 ® Butoconazole Nitrate Vaginal Cream USP, 2% is contraindicated in patients with a history of hypersensitivity to any of the components of the product.
Of the 314 patients treated with GynomykE•1 ® Butoconazole Nitrate Vaginal Cream USP, 2% for 1 day in controlled clinical trials, 18 patients (5.7%) reported complaints such as vulvar/vaginal burning, itching, soreness and swelling, pelvic or abdominal pain or cramping, or a combination of two or more of these symptoms. In 3 patients (1 %) these complaints were considered treatment-related. Five of the 18 patients reporting adverse events discontinued the study because of them.
GynomykE•1® Butoconazole Nitrate Vaginal Cream USP, 2% is indicated for the local treatment of vulvovaginal candidiasis (infections caused by Candida). The diagnosis should be confirmed by KOH smears and/or cultures (see Clinical Studies).
Note: GynomykE•1® Butoconazole Nitrate Vaginal Cream USP, 2% is safe and effective in non-pregnant women; however, the safety and effectiveness of this product in pregnant women has not been established (see PRECAUTIONS - Pregnancy).
This cream contains mineral oil. Mineral oil may weaken latex or rubber products such as condoms or vaginal contraceptive diaphragms; therefore, use of such products within 72 hours following treatment with GynomykE•1® Butoconazole Nitrate Vaginal Cream USP, 2% is not recommended.
Recurrent vaginal yeast infections, especially those that are difficult to eradicate, can be an early sign of infection with the human immunodeficiency virus (HIV) in women who are considered at risk for HIV infection.
PRECAUTIONS GeneralIf clinical symptoms persist, tests should be repeated to rule out other pathogens, to confirm the original diagnosis, and to rule out other conditions that may predispose a patient to recurrent vaginal fungal infections.
Carcinogenesis, Mutagenesis, Impairment Of Fertility CarcinogenesisLong term studies in animals have not been performed to evaluate the carcinogenic potential of this drug.
MutagenicityButoconazole nitrate was not mutagenic when tested in the Ames bacterial test, yeast, chromosomal aberration assay in CHO cells, CHO/HGPRT point mutation assay, mouse micronucleus, and rat dominant lethal assays.
Impairment Of FertilityNo impairment of fertility was seen in rabbits or rats administered butoconazole nitrate in oral doses up to 30 mg/kg/day (5 times the human dose based on mg/m²) or 100 mg/kg/day (10 times the human dose based on mg/m²), respectively.
PregnancyPregnancy Category C - In pregnant rats administered 6 mg/kg/day of butoconazole nitrate intravaginally during the period of organogenesis, there was an increase in resorption rate and decrease in litter size; however, no teratogenicity was noted. This dose represents a 130- to 353-fold margin of safety based on serum levels achieved in rats following intravaginai administration compared to the serum levels achieved in humans following intravaginai administration of the recommended therapeutic dose of butoconazole nitrate.
Butoconazole nitrate has no apparent adverse effect when administered orally to pregnant rats throughout organogenesis at dose levels up to 50 mg/kg/day (5 times the human dose based on mg/m²). Daily oral doses of 100,300 or 750 mg/kg/day (10,30 or 75 times the human dose based on mg/m² respectively) resulted in fetal malformations (abdominal wall defects, cleft palate), but maternal stress was also evident at these higher dose levels. There were, however, no adverse effects on litters of rabbits who received butoconazole nitrate orally, even at maternally stressful dose levels (e.g., 150 mg/kg, 24 times the human dose based on mg/m²).
Butoconazole nitrate, like other azole antifungal agents, causes dystocia in rats when treatment is extended through parturition. However, this effect was not apparent in rabbits treated with as much as 100 mg/kg/day orally (16 times the human dose based on mg/m²).
There are, however, no adequate and well-controlled studies in pregnant women. GynomykE • 1 ® Butoconazole Nitrate Vaginal Cream USP, 2% should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.
Nursing MothersIt is not known whether this drug is excreted in human milk Because many drugs are excreted in human milk, caution should be exercised when butoconazole nitrate is administered to a nursing woman.
Pediatric UseSafety and effectiveness in children have not been established.
The recommended dose of GynomykE•1® Butoconazole Nitrate Vaginal Cream USP, 2% is one applicatorful of cream (approximately 5 grams of the cream) intravaginally. This amount of cream contains approximately 100 mg of butoconazole nitrate.
