TINDAZOLE — tinidazole tablet, film coated
Rising Pharmaceuticals, Inc.
Carcinogenicity has been seen in mice and rats treated chronically with metronidazole, another nitroimidazole agent [see Nonclinical Toxicology ( 13.1)]. Although such data have not been reported for tinidazole, the two drugs are structurally related and have similar biologic effects. Limit use of Tinidazole Tablets to approved indications only [see Indications and Usage ( 1.1, 1.2, 1.3)]. Avoid chronic use [see Warnings and Precautions ( 5.1)].
Tinidazole is indicated for the treatment of trichomoniasis caused by Trichomonas vaginalis. The organism should be identified by appropriate diagnostic procedures. Because trichomoniasis is a sexually transmitted disease with potentially serious sequelae, partners of infected patients should be treated simultaneously in order to prevent re-infection [see Clinical Studies (14.1)].
Tinidazole is indicated for the treatment of giardiasis caused by Giardia duodenalis (also termed G. lamblia) in both adults and pediatric patients older than three years of age [see Clinical Studies (14.2)].
Tinidazole is indicated for the treatment of intestinal amebiasis and amebic liver abscess caused by Entamoeba histolytica in both adults and pediatric patients older than three years of age. It is not indicated in the treatment of asymptomatic cyst passage [see Clinical Studies (14.3, 14.4)].
Tinidazole is indicated for the treatment of bacterial vaginosis (formerly referred to as Haemophilus vaginitis, Gardnerella vaginitis, nonspecific vaginitis, or anaerobic vaginosis) in adult women [see Use in Specific Populations ( 8.1) and Clinical Studies ( 14.5)].
Other pathogens commonly associated with vulvovaginitis such as Trichomonas vaginalis, Chlamydia trachomatis, Neisseria gonorrhoeae, Candida albicans and Herpes simplex virus should be ruled out.
To reduce the development of drug-resistant bacteria and maintain the effectiveness of Tinidazole Tablets and other antibacterial drugs, Tinidazole Tablets should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.
It is advisable to take tinidazole with food to minimize the incidence of epigastric discomfort and other gastrointestinal side-effects. Food does not affect the oral bioavailability of tinidazole [see Clinical Pharmacology (12.3)].
Alcoholic beverages should be avoided when taking tinidazole and for 3 days afterwards [see Drug Interactions (7.1)].
For those unable to swallow tablets, tinidazole tablets may be crushed in artificial cherry syrup to be taken with food.
Procedure for Extemporaneous Pharmacy Compounding of the Oral Suspension: Pulverize four 500 mg oral tablets with a mortar and pestle. Add approximately 10 mL of cherry syrup to the powder and mix until smooth. Transfer the suspension to a graduated amber container. Use several small rinses of cherry syrup to transfer any remaining drug in the mortar to the final suspension for a final volume of 30 mL. The suspension of crushed tablets in artificial cherry syrup is stable for 7 days at room temperature. When this suspension is used, it should be shaken well before each administration.
The recommended dose in both females and males is a single 2 g oral dose taken with food. Since trichomoniasis is a sexually transmitted disease, sexual partners should be treated with the same dose and at the same time.
The recommended dose in adults is a single 2 g dose taken with food. In pediatric patients older than three years of age, the recommended dose is a single dose of 50 mg/kg (up to 2 g) with food.
Intestinal: The recommended dose in adults is a 2 g dose per day for 3 days taken with food. In pediatric patients older than three years of age, the recommended dose is 50 mg/kg/day (up to 2 g per day) for 3 days with food.
Amebic Liver Abscess: The recommended dose in adults is a 2 g dose per day for 3-5 days taken with food. In pediatric patients older than three years of age, the recommended dose is 50 mg/kg/day (up to 2 g per day) for 3-5 days with food. There are limited pediatric data on durations of therapy exceeding 3 days, although a small number of children were treated for 5 days without additional reported adverse reactions. Children should be closely monitored when treatment durations exceed 3 days.
The recommended dose is a 2 g oral dose once daily for 2 days taken with food or a 1 g oral dose once daily for 5 days taken with food. The use of tinidazole in pregnant patients has not been studied for bacterial vaginosis.
- 250 mg tablets are pink color, circular shaped film coated scored tablets with “250” debossed on one side and ” T│P” on the other side
- 500 mg tablets are pink color, capsule shaped film coated scored tablets with “500” debossed on one side and ” T│P” on the other side
The use of tinidazole is contraindicated:
- In patients with a previous history of hypersensitivity to tinidazole or other nitroimidazole derivatives. Reported reactions have ranged in severity from urticaria to Stevens-Johnson syndrome [see Adverse Reactions (6.1, 6.2)].
Carcinogenicity has been seen in mice and rats treated chronically with nitroimidazole derivatives, which are structurally related to tinidazole [see Nonclinical Toxicology (13.1)]. Although such data have not been reported for tinidazole, the two drugs are structurally related and have similar biologic effects. However, it is unclear if the positive tumor findings in lifetime rodent studies indicate a risk to patients taking a short course or single dose of Tinidazole Tablet. Use should be limited to approved indications only. Avoid chronic use.
Convulsive seizures and peripheral neuropathy, the latter characterized mainly by numbness or paresthesia of an extremity, have been reported in patients treated with tinidazole. The appearance of abnormal neurologic signs demands the prompt discontinuation of tinidazole therapy.
The use of tinidazole may result in Candida vaginitis. In a clinical study of 235 women who received tinidazole for bacterial vaginosis, a vaginal fungal infection developed in 11 (4.7%) of all study subjects [see Clinical Studies (14.5)].
Tinidazole should be used with caution in patients with evidence of or history of blood dyscrasia [see Drug Interactions (7.3)].
Prescribing Tinidazole Tablets in the absence of a proven or strongly suspected bacterial infection or a prophylactic indication is unlikely to provide benefit to the patient and increases the risk of the development of drug-resistant bacteria.
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