Benzonatate

INDICATIONS AND USAGE Benzonatate capsules are indicated for the symptomatic relief of cough.

DOSAGE AND ADMINISTRATION Adults and Children over 10 years of age: Usual dose is one 100 mg or 200 mg capsule three times a day as needed for cough. If necessary to control cough, up to 600 mg daily in three divided doses may be given. Benzonatate Capsules should be swallowed whole. Benzonatate Capsules are not to be broken, chewed, dissolved, cut or crushed.

CONTRAINDICATIONS Hypersensitivity to benzonatate or related compounds.

ADVERSE REACTIONS Potential Adverse Reactions to benzonatate may include: Hypersensitivity reactions including bronchospasm, laryngospasm, cardiovascular collapse possibly related to local anesthesia from chewing or sucking the capsule. CNS: sedation; headache; dizziness; mental confusion; visual hallucinations. GI: constipation; nausea; GI upset. Dermatologic: pruritus; skin eruptions. Other: nasal congestion; sensation of burning in the eyes; vague “chilly” sensation; numbness of the chest; hypersensitivity. Deliberate or accidental overdose has resulted in death, particularly in children. To report SUSPECTED ADVERSE REACTIONS, contact Avet Pharmaceuticals Inc. at 1-866-901-DRUG (3784) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

DESCRIPTION Benzonatate, a non-narcotic oral antitussive agent, is 2, 5, 8, 11, 14, 17, 20, 23, 26-nonaoxaoctacosan-28-yl p-(butylamino) benzoate; with a molecular weight of 603.7. Benzonatate Capsules, USP contain 100 mg or 200 mg of benzonatate, USP. Benzonatate Capsules also contain: D&C Yellow No. 10, gelatin, glycerin, methylparaben sodium and propylparaben sodium. The white imprinting ink contains the following inactive ingredients: ammonium hydroxide, isopropyl alcohol, n-butyl alcohol, propylene glycol, shellac glaze, simethicone and titanium dioxide. FDA approved dissolution test specifications differ from USP. structure

OVERDOSAGE Intentional and unintentional overdose may result in death, particularly in children. The drug is chemically related to tetracaine and other topical anesthetics and shares various aspects of their pharmacology and toxicology. Drugs of this type are generally well absorbed after ingestion. Signs and Symptoms The signs and symptoms of overdose of benzonatate have been reported within 15 to 20 minutes. If capsules are chewed or dissolved in the mouth, oropharyngeal anesthesia will develop rapidly, which may cause choking and airway compromise. CNS stimulation may cause restlessness and tremors which may proceed to clonic convulsions followed by profound CNS depression. Convulsions, coma, cerebral edema and cardiac arrest leading to death have been reported within 1 hour of ingestion. Treatment In case of overdose, seek seek medical attention immediately. Evacuate gastric contents and administer copious amounts of activated charcoal slurry. Even in the conscious patient, cough and gag reflexes may be so depressed as to necessitate special attention to protection against aspiration of gastric contents and orally administered materials. Convulsions should be treated with a short-acting barbiturate given intravenously and carefully titrated for the smallest effective dosage. Intensive support of respiration and cardiovascular-renal function is an essential feature of the treatment of severe intoxication from overdosage. Do not use CNS stimulants.

HOW SUPPLIED Benzonatate Capsules, USP are available as: 100 mg Oval Shape, imprint “100” with white ink, transparent yellow soft gelatin capsule NDC 23155-898-01 Bottles of 100 NDC 23155-898-05 Bottles of 500 200 mg Oblong Shape, imprint “200” with white ink, transparent yellow soft gelatin capsules NDC 23155-899-01 Bottles of 100 NDC 23155-899-05 Bottles of 500 Store at 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F) [See USP Controlled Room Temperature]. Dispense in tight, light-resistant container as defined in the USP. Distributed by: Avet Pharmaceuticals Inc. East Brunswick, NJ 08816 1.866.901.DRUG (3784) 51U000000461US01 Revised: 04/2024 image description