Tigan(R) (Trimethobenzamide Hydrochloride)

Prescription

Brand names: TIGAN(R) (TRIMETHOBENZAMIDE HYDROCHLORIDE)

Dosage Form

Injection

Route

INTRAMUSCULAR

Manufacturer

HF Acquisition Co LLC, DBA HealthFirst

About This Medication

DESCRIPTION Chemically, trimethobenzamide hydrochloride (HCl) is N-[p-[2-(dimethylamino)ethoxy]benzyl]-3,4,5-trimethoxybenzamide monohydrochloride. It has a molecular weight of 424.93 and the following structural formula: Single Dose Vials: Each 2-mL single-dose vial contains 200 mg trimethobenzamide hydrochloride compounded with 1 mg sodium citrate and 0.4 mg citric acid as buffers and pH adjusted to approximately 5.0 with sodium hydroxide. Multi-Dose Vials: Each mL contains 100 mg trimethobenzamide hydrochloride compounded with 0.45% phenol as preservative, 0.5 mg sodium citrate and 0.2 mg citric acid as buffers and pH adjusted to approximately 5.0 with sodium hydroxide. STRUCTURE

Active Ingredients

Ingredient	Strength
Trimethobenzamide Hydrochloride	-

Indications & Usage

INDICATIONS Tigan® is indicated for the treatment of postoperative nausea and vomiting and for nausea associated with gastroenteritis.

Dosage & Administration

DOSAGE & ADMINISTRATION (See WARNINGS and PRECAUTIONS .) Dosage should be adjusted according to the indication for therapy, severity of symptoms and the response of the patient. Geriatric Patients Dose adjustment such as reducing the total dose administered at each dosing or increasing the dosing interval should be considered in elderly patients with renal impairment (creatinine clearance ≤ 70 mL/min/1.73m2). Final dose adjustment should be based upon integration of clinical efficacy and safety considerations. (See CLINICAL PHARMACOLOGY and PRECAUTIONS ). Patients with Renal Impairment In subjects with renal impairment (creatinine clearance ≤ 70 mL/min/1.73m2), dose adjustment such as reducing the total dose administered at each dosing or increasing the dosing interval should be considered. (See CLINICAL PHARMACOLOGY and DOSAGE AND ADMINISTRATION). INJECTABLE, 100 mg/mL (Not for use in pediatric patients) Usual Adult Dosage 2 mL (200 mg) t.i.d. or q.i.d. intramuscularly. NOTE: The injectable form is intended for intramuscular administration only; it is not recommended for intravenous use. Intramuscular administration may cause pain, stinging, burning, redness and swelling at the site of injection. Such effects may be minimized by deep injection into the upper outer quadrant of the gluteal region, and by avoiding the escape of solution along the route.

Side Effects Overview

ADVERSE REACTIONS There have been reports of hypersensitivity reactions and Parkinson-like symptoms. There have been instances of hypotension reported following parenteral administration to surgical patients. There have been reports of blood dyscrasias, blurring of vision, coma, convulsions, depression of mood, diarrhea, disorientation, dizziness, drowsiness, headache, jaundice, muscle cramps and opisthotonos. If these occur, the administration of the drug should be discontinued. Allergic-type skin reactions have been observed; therefore, the drug should be discontinued at the first sign of sensitization. While these symptoms will usually disappear spontaneously, symptomatic treatment may be indicated in some cases. For medical advice about adverse reactions contact your medical professional. To report SUSPECTED ADVERSE REACTIONS, contact Par Pharmaceutical, Inc. at 1-800-828-9393 or FDA at 1-800-FDA-1088 (1-800-332-1088) or www.fda.gov/medwatch.

Warnings & Precautions

WARNINGS Tigan® may produce drowsiness. Patients should not operate motor vehicles or other dangerous machinery until their individual responses have been determined. Usage in Pregnancy Trimethobenzamide hydrochloride was studied in reproduction experiments in rats and rabbits and no teratogenicity was suggested. The only effects observed were an increased percentage of embryonic resorptions or stillborn pups in rats administered 20 mg and 100 mg/kg and increased resorptions in rabbits receiving 100 mg/kg. In each study these adverse effects were attributed to one or two dams. The relevance to humans is not known. Since there is no adequate experience in pregnant or lactating women who have received this drug, safety in pregnancy or in nursing mothers has not been established. Usage with Alcohol Concomitant use of alcohol with Tigan® may result in an adverse drug interaction.

Contraindications

CONTRAINDICATIONS The injectable form of Tigan® is contraindicated in pediatric patients and in patients with known hypersensitivity to trimethobenzamide.

Frequently Asked Questions

INDICATIONS Tigan® is indicated for the treatment of postoperative nausea and vomiting and for nausea associated with gastroenteritis.

DOSAGE & ADMINISTRATION (See WARNINGS and PRECAUTIONS .) Dosage should be adjusted according to the indication for therapy, severity of symptoms and the response of the patient. Geriatric Patients Dose adjustment such as reducing the total dose administered at each dosing or increasing the dosing interval should be considered in elderly patients with renal impairment (creatinine clearance ≤ 70 mL/min/1.73m2). Final dose adjustment should be based upon integration of clinical efficacy and safety considerations. (See CLINICAL PHARMACOLOGY and PRECAUTIONS ). …

WARNINGS Tigan® may produce drowsiness. Patients should not operate motor vehicles or other dangerous machinery until their individual responses have been determined. Usage in Pregnancy Trimethobenzamide hydrochloride was studied in reproduction experiments in rats and rabbits and no teratogenicity was suggested. The only effects observed were an increased percentage of embryonic resorptions or stillborn pups in rats administered 20 mg and 100 mg/kg and increased resorptions in rabbits receiving 100 mg/kg. In each study these adverse effects were attributed to …

CONTRAINDICATIONS The injectable form of Tigan® is contraindicated in pediatric patients and in patients with known hypersensitivity to trimethobenzamide.

Tigan(R) (Trimethobenzamide Hydrochloride) is a prescription medication. You will need a valid prescription from a licensed healthcare provider.

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References & Data Sources

• DailyMed — Tigan(R) (Trimethobenzamide Hydrochloride) drug label (National Library of Medicine)
• openFDA — Tigan(R) (Trimethobenzamide Hydrochloride) label data (U.S. Food & Drug Administration)
• RxNorm — RXCUI 1726680 (NLM Normalized Drug Names)
• NDC Directory — Tigan(R) (Trimethobenzamide Hydrochloride) (FDA National Drug Code)

Medical Disclaimer

The information on this page is intended for educational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment.

Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or medication.

Data sources: DailyMed (NLM), openFDA, MFDS